WO2023168639A1 - 一种光源产生装置、探测设备及终端 - Google Patents

一种光源产生装置、探测设备及终端 Download PDF

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Publication number
WO2023168639A1
WO2023168639A1 PCT/CN2022/080031 CN2022080031W WO2023168639A1 WO 2023168639 A1 WO2023168639 A1 WO 2023168639A1 CN 2022080031 W CN2022080031 W CN 2022080031W WO 2023168639 A1 WO2023168639 A1 WO 2023168639A1
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Prior art keywords
power amplification
module
power
optical signal
light source
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PCT/CN2022/080031
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English (en)
French (fr)
Inventor
王超
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2022/080031 priority Critical patent/WO2023168639A1/zh
Priority to CN202280091605.9A priority patent/CN118743118A/zh
Priority to EP22930280.7A priority patent/EP4475358A4/en
Publication of WO2023168639A1 publication Critical patent/WO2023168639A1/zh
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • H01S3/06758—Tandem amplifiers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4814—Constructional features, e.g. arrangements of optical elements of transmitters alone
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4818—Constructional features, e.g. arrangements of optical elements using optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/484—Transmitters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2308—Amplifier arrangements, e.g. MOPA
    • H01S3/2325—Multi-pass amplifiers, e.g. regenerative amplifiers
    • H01S3/2333—Double-pass amplifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • H01S3/0064—Anti-reflection devices, e.g. optical isolaters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • H01S3/0078—Frequency filtering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094011—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with bidirectional pumping, i.e. with injection of the pump light from both two ends of the fibre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094096—Multi-wavelength pumping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/1601—Solid materials characterised by an active (lasing) ion
    • H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
    • H01S3/1608—Solid materials characterised by an active (lasing) ion rare earth erbium

Definitions

  • the present application relates to the field of sensor technology, and in particular to a light source generating device, detection equipment and terminal.
  • Lidar is an indispensable and important sensor in the field of future autonomous driving. With the rapid development of laser detection technology, higher requirements have been placed on the performance of lidar. Among them, in view of the fact that the average power of fiber lasers is generally low, more attention is paid to the flexibility and electro-optical conversion efficiency of high-performance fiber lasers.
  • Embodiments of the present application provide a light source generation device, detection equipment and terminals to better improve the flexibility of fiber lasers.
  • a light source generating device which includes:
  • An optical signal generation module and N power amplification modules the optical signal generation module is connected to the N power amplification modules, and N is a positive integer; the optical signal generation module is used to generate optical signal pulses; N power amplification modules are used to amplify the optical signal pulse; the optical signal generation module is located inside the laser radar, and the N power amplification modules are located outside the laser radar.
  • this application provides a light source generation device, in which the optical signal generation module in the light source generation device is placed inside the lidar, so The power amplification module in the light source generation device is placed outside the lidar.
  • the heat distribution of the light source generation device can be effectively improved, which is conducive to system heat dissipation, thereby effectively avoiding During practical application of the light source generating device, the problem of low electro-optical conversion efficiency caused by the thermal lens effect occurs.
  • the number of power amplification modules connected to the optical signal generation module and the power amplification module connected to the optical signal generation module can be adjusted according to the scenario and needs.
  • the optical signal pulses generated by the optical signal generation module are transmitted to the N power amplification modules through a filter; the filter is used to perform noise reduction processing on the optical signal pulses.
  • the optical signal generation module transmits the generated optical signal pulse to the power amplifier module, it performs noise reduction processing on the optical signal pulse through the filter, which can better ensure that the optical signal pulse obtained by the power amplifier module is The quality of the signal pulse.
  • the optical signal pulses generated by the optical signal generation module are sequentially transmitted to the N power amplification modules through a first collimator, a filter, and a second collimator;
  • a collimator is used to convert the optical signal pulse in the optical signal generation module into collimated light;
  • the second collimator is used to couple the collimated light to the N power amplification modules.
  • the optical signal generation module transmits the generated optical signal pulse to the power amplification module, it passes through the first collimator, filter and second collimator in sequence, so that the light can be coupled into the power with maximum efficiency.
  • the amplification module can not only ensure the quality of optical signal pulses, but also effectively improve energy utilization.
  • the optical signal generation module includes a seed source for generating optical signal pulses, at least one optical isolator, at least one pump source, at least one erbium-doped optical fiber, a circulator, a Faraday reflector, At least one combiner and one or more temperature control devices.
  • the optical signal generation module may include a seed source, at least one optical isolator, at least one pump source, at least one erbium-doped fiber, a circulator, a Faraday One or more of the reflector, at least one combiner and temperature control device are not limited here.
  • the pump source in the optical signal generation module includes a first pump source and a second pump source, the first pump source has a wavelength band of 900-1000 nm, and the second pump source The wavelength band of the pump source is 1400nm ⁇ 1500nm.
  • the optical signal generation module adopts a bidirectional pumping scheme. For example, using a pump source with a band of 900 to 1000nm and a pump source with a band of 1400nm to 1500nm can effectively improve the efficiency loss caused by quantum defect.
  • the power amplification module includes one or more of a circulator, at least one combiner, at least one pump source, at least one optical fiber, a filter, a temperature control device, and a Faraday mirror; wherein , the structure of each power amplification module in the N power amplification modules is different; or, the structure of each power amplification module in the N power amplification modules is the same; or, the N power amplification modules The structure of the middle power amplifier module is the same.
  • the power amplification module includes a circulator, at least one combiner, at least one pump source, at least one optical fiber, a filter, a temperature control device, and a Faraday
  • the reflectors are not limited here.
  • the N power amplification modules are selected from H power amplification modules and connected to form the light source generating device; the H is a positive integer, and the H is greater than or equal to the N.
  • this application provides a flexible light source generation device construction method. For example, it can be selected from H power amplification modules, so that it can be selected according to actual needs, breaking the traditional fiber laser system architecture.
  • the design idea effectively improves the freedom of device construction.
  • the connected N power amplification modules are switched to M power amplification modules, where M is a positive integer; wherein, the N power amplification modules
  • M is a positive integer
  • the number of power amplification modules and/or power amplification modules that need to be connected can be increased or reduced as needed according to the actual application scenario.
  • the N power amplification modules to be connected can be connected from the H power amplification modules.
  • the power amplification modules are switched to M power amplification modules, so that they can be adjusted according to actual needs and have greater adaptability.
  • the first power amplification module connected to the optical signal generation module is switched to a second power amplification module, and the amplification power of the first power amplification module is greater than that of the third power amplification module.
  • the amplification power of the second power amplifier module is greater than that of the third power amplification module.
  • the optical signal generation module can switch the connected first power amplification module with a larger amplification power to a second power amplification module with a smaller amplification power, effectively improving the system performance and flexibility.
  • the second power amplification module connected to the optical signal generation module is switched to the first power amplification module, and the amplification power of the first power amplification module is greater than the amplification power of the second power amplification module.
  • the optical signal generation module can switch the connected second power amplification module with a smaller amplification power to a first power amplification module with a larger amplification power, effectively improving the system performance and flexibility.
  • the optical signal generation module when the amplification power needs to be increased, the optical signal generation module additionally connects the second power amplification module in addition to connecting the first power module.
  • the first power amplification module connected to the optical signal generation module switches to the second power amplification module and the third power amplification module.
  • the sum of the amplification power of the power amplification module and the third power amplification module is greater than the amplification power of the first power amplification module.
  • the second power amplification module and the third power amplification module connected to the optical signal generation module are switched to the first power amplification module, and the The sum of the amplification powers of the second power amplification module and the third power amplification module is greater than the amplification power of the first power amplification module.
  • the connected power amplification modules can be switched from the N power amplification modules to the M power amplification modules by plugging and unplugging.
  • the embodiments of the present application support "plug-and-play" expansion features and are more flexible.
  • the pluggable feature can be implemented through a flange port or through optical fiber splicing, which is not limited here.
  • the number of optical fibers in the second power amplification module is less than the number of optical fibers in the first power amplification module; or the pump source power of the second power amplification module is less than the first power Pump source power in the amplification module.
  • the power amplification module performs temperature control adjustment independently of the optical signal generation module.
  • the independent temperature control system of the optical signal generation module and the power amplification module can enable the optical signal generation module and the power amplification module to better ensure the quality of the optical signal pulses while allowing the heat generated by the radar system to Lower and more distributed, it is conducive to reducing the thermal equilibrium temperature of the system, and the reduction of the thermal equilibrium temperature is also conducive to achieving a higher total electro-optical conversion efficiency of the system.
  • the optical signal pulses amplified by the N power amplification modules are converged to a third collimator for output.
  • the power amplification module outputs the amplified optical signal pulse through the third collimator, which can effectively improve the energy utilization rate.
  • the optical signal generation module is also used to:
  • Time-domain gating is performed by controlling the switching of the third collimator for light output.
  • the optical signal generation module realizes time domain gating by controlling the optical switch, which can effectively remove spurious pulses and reduce the premature leakage of optical signal pulses.
  • the third collimator is also used to connect to the optical splitter to achieve split light output.
  • the output is carried out through the optical splitter, which can achieve better power interception and greater flexibility.
  • a second aspect provides a detection device, which includes the light source generating device provided in the above-mentioned first aspect and any possible design thereof.
  • the optical signal generation module inside the lidar and placing the power amplification module outside the lidar, the power amplification module and layout position can be adjusted according to the scene and needs, breaking the traditional fiber laser system architecture.
  • the design idea can effectively improve the freedom of radar system layout scenarios.
  • the size of the lidar can be effectively reduced.
  • a terminal which may include the light source generating device provided in the above-mentioned first aspect and any possible design thereof.
  • the terminal can be an intelligent communication device, a smart home device, an intelligent manufacturing device, an intelligent transportation device, etc., such as a vehicle, a drone, an unmanned transport vehicle, a robot, etc.
  • the vehicle when the terminal is a vehicle, the vehicle may include the light source generating device provided in the above first aspect and any of its possible designs.
  • the light source generation device includes an optical signal generation module and N power amplification modules, the optical signal generation module is connected to the N power amplification modules, and N is a positive integer; the optical signal generation module is used to generate Optical signal pulse; the N power amplification modules are used to amplify the optical signal pulse; the optical signal generation module is located inside the laser radar, and the N power amplification modules are located outside the laser radar.
  • the light source generating device can generate optical signal pulses to achieve detection of target objects.
  • the present application provides a chip connected to a memory for reading and executing computer programs or instructions stored in the memory to control the above-mentioned first aspect or any possible light source generating device of the first aspect. Implement the above.
  • a computer-readable storage medium In a fifth aspect, a computer-readable storage medium is provided. Computer programs or instructions are stored in the computer-readable storage medium. When the computer program or instructions are executed by a light source generating device, the light source generating device executes the above-mentioned first aspect or the third aspect. Any possible involved operation on the one hand.
  • the light source generating device can select the N power amplification modules from the H power amplification modules for connection by executing the computer program or instructions.
  • the light source generating device can switch the connected N power amplification modules to M power amplification modules from the H power amplification modules by executing the computer program or instructions.
  • the light source generating device can switch the connected first power amplification module to the second power amplification module by executing the computer program or instructions.
  • the first power amplification module The amplification power of the module is greater than the amplification power of the second power amplification module.
  • the light source generating device can switch the connected second power amplification module to the first power amplification module by executing the computer program or instructions.
  • the amplification power of the first power amplification module is greater than the amplification power of the second power amplification module.
  • the light source generating device can add the second power amplification module in addition to the first power module by executing the computer program or instructions.
  • the first power amplification module connected to the optical signal generation module is switched to the second power amplification module and the third power amplification module, and the second power amplification module and the third power amplification module are The sum of the amplification powers of the power amplification modules is greater than the amplification power of the first power amplification module.
  • the light source generating device can switch the connected second power amplification module and the third power amplification module to the In a first power amplification module, the sum of the amplification powers of the second power amplification module and the third power amplification module is greater than the amplification power of the first power amplification module.
  • the present application provides a computer program product.
  • the computer program product includes a computer program or instructions.
  • the computer program or instructions are executed by a light source generating device, the light source generating device executes the above first aspect or the first aspect. any possible operations.
  • Figure 1 is a schematic diagram of an application scenario of a light source generating device provided by an embodiment of the present application
  • Figure 2 is a schematic diagram of the principle structure of a light source generating device provided by an embodiment of the present application
  • Figure 3 is a schematic diagram of the application architecture of the first light source generating device provided by an embodiment of the present application.
  • Figure 4 is a schematic diagram of the application architecture of the second light source generation device provided by the embodiment of the present application.
  • Figure 5 is a schematic diagram of the application architecture of the third light source generating device provided by the embodiment of the present application.
  • Figure 6 is a schematic diagram of the application architecture of the fourth light source generating device provided by the embodiment of the present application.
  • Figure 7 is a schematic diagram of the application architecture of the fifth light source generating device provided by the embodiment of the present application.
  • Figure 8 is a schematic diagram of the application architecture of the sixth light source generating device provided by the embodiment of the present application.
  • Figure 9 is a schematic diagram of the application architecture of the seventh light source generating device provided by the embodiment of the present application.
  • Figure 10 is a schematic diagram of the application architecture of the eighth light source generation device provided by the embodiment of the present application.
  • Figure 11 is a schematic structural diagram of a laser radar provided by an embodiment of the present application.
  • Figure 12 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the light source generating device in the embodiment of the present application can be installed on a mobile device.
  • the light source generating device in the present application can be applied on a vehicle or a robot.
  • the above-mentioned means of transportation include but are not limited to means of transportation driven by non-renewable energy or new energy.
  • the means of transportation driven by non-renewable energy can include cars, buses, trucks, etc. driven by gasoline, diesel, ethanol and other fuels.
  • New energy-driven means of transportation can include cars, buses, trucks, etc. driven by electric energy.
  • the light source generating device in this application can be installed on a vehicle and used in autonomous driving scenarios, or it can also be used in connected car scenarios and other situations to be used as a vehicle-mounted lidar; for another example, the light source in this application
  • the generating device should be installed on an aircraft and used as an airborne lidar, etc.
  • the light source generating device can also be installed on a mobile platform, such as a satellite.
  • the light source generating device needs the assistance of other devices in the mobile platform to determine its current position and steering information, thus ensuring the availability of measurement data.
  • the light source generating device can also be installed on a fixed platform.
  • the lidar can be installed on a road side unit (RSU), rooftop or base station.
  • the light source generating device in this application can also be applied to other possible scenarios, which are not limited here.
  • embodiments of the present application provide a light source generating device.
  • the optical signal generation module inside the lidar and placing the power amplification module outside the lidar, the power amplification module and layout position can be adjusted according to the scene and needs. This breaks the design idea of the traditional fiber laser system architecture and can effectively improve Freedom in radar system layout scenarios.
  • FIG. 2 shows a light source generating device provided by an embodiment of the present application.
  • the light source generation device includes an optical signal generation module 210 and N power amplification modules 220 .
  • the optical signal generation module 210 is connected to the N power amplification modules 220, where N is a positive integer.
  • the optical signal generating module 210 is used to generate optical signal pulses.
  • the N power amplification modules 220 are used to amplify the optical signal pulse; the optical signal generation module is located inside the laser radar, and the N power amplification modules are located outside the laser radar.
  • the N power amplification modules are selected from H power amplification modules, where the H is a positive integer and is greater than or equal to the N.
  • the optical signal generation module can be configured according to the actual situation. Requirements, choose from 5 power amplifier modules.
  • the optical signal generation module can also switch the connected power amplifier module 1, power amplifier module 2 and power amplifier module 5 into power amplifier module 3 and power amplifier module 4 by plugging and unplugging according to actual needs.
  • the H power amplification modules in the embodiment of this application support the use of M optical signal generation modules.
  • the H is a positive integer and is greater than or equal to the power amplification selected by the M optical signal generation modules respectively. The sum of the number of modules.
  • each lidar includes an optical sensor.
  • the signal generation modules are respectively optical signal generation module 1 and optical signal generation module 2.
  • the optical signal generating module 1 can select the power amplifying module 1 and the power amplifying module 3 from the six power amplifying modules according to actual needs to connect to form the light source generating device 1.
  • the optical signal generation module 2 can select and connect the power amplification module 4 from the remaining four power amplification modules according to actual needs to form the light source generation device 2 .
  • the optical signal generation module 210 may include one or more of the following passive components:
  • One or more of a seed source for generating optical signal pulses at least one optical isolator, at least one pump source, at least one erbium-doped optical fiber, a circulator, a Faraday mirror, at least one combiner and a temperature control device.
  • the wavelength bands of different pump sources may be the same or different.
  • the wavelength bands of pump source 1 and pump source 2 can be set to 900-1000 nm, and the wavelength bands of pump source 3 can be set to 900-1000 nm.
  • the wavelength band can be set to 1400nm to 1500nm; for another example, when the optical signal generation module 210 includes pump source 1, pump source 2, pump source 3 and pump source 4, pump source 1 to pump source 4
  • the bands can be set to 900 ⁇ 1000nm.
  • the seed source is used to emit detection light, that is, optical signal pulses.
  • the light emitted by the seed source may be non-visible light, such as light with a wavelength greater than 760 nm.
  • the seed source in the light source generating device described in the embodiment of the present application can use different light sources, such as a laser transmitter.
  • the emitted laser has the advantages of good coherence, good parallelism and high brightness, and is suitable for detection.
  • the power amplification module 220 may include one or more of the following passive components:
  • One or more of a circulator, at least one combiner, at least one pump source, at least one optical fiber, a filter, a Faraday mirror and a temperature control device are included in the circulator, at least one combiner, at least one pump source, at least one optical fiber, a filter, a Faraday mirror and a temperature control device.
  • both the optical signal generation module and the power amplification module include a temperature control device
  • the temperature control device for adjusting the temperature of the optical signal generation module and the temperature control device for adjusting the temperature of the power amplification module may not be the same temperature control device, that is, the temperature control device of the optical signal generation module is independent of the temperature control device of the power amplification module.
  • the optical signal generation module and the power amplification module can be independently adjusted for temperature control, so that the optical signal generation module and the power amplification module can better ensure the quality of the optical signal pulse while reducing the heat generated by the radar system. Being able to be lower and more distributed is conducive to reducing the thermal equilibrium temperature of the system. The reduction of the thermal equilibrium temperature is also conducive to achieving a higher total electro-optical conversion efficiency of the system.
  • the following is an example of the structure of the light source generating device based on the architecture shown in Figure 2.
  • the specific situation is not limited to the following situations:
  • the light source generation device includes an optical signal generation module and a power amplification module.
  • the power method module included in the light source generation device is selected from H power amplification modules, and H is a positive integer.
  • the light source generation device provided in the embodiment of the present application includes an optical signal generation module and a power amplification module.
  • the optical signal generation module includes a seed source, an optical isolator, a circulator, pump source 1, pump source 2, two combiners, an erbium-doped fiber and a Faraday reflector; the power amplification
  • the module includes a circulator, a combiner, a pump source, an optical fiber, a filter and a Faraday mirror.
  • the wavelength band of the pump source 1 in the optical signal generation module can be set to 900-1000nm, and the wavelength band of the pump source 2 can be set to 1400nm-1500nm. This achieves bidirectional pumping and effectively improves the efficiency loss caused by quantum deficit.
  • the light source generation device includes an optical signal generation module and two power amplification modules with the same amplification power.
  • the two power method modules included in the light source generation device are selected from H power amplification modules.
  • the H power amplification modules are selected from the H power amplification modules. is a positive integer.
  • the light source generation device provided in the embodiment of the present application includes an optical signal generation module and two power amplification modules, such as a first power amplification module and a second power amplification module.
  • the first power amplification module The amplification power of the amplification module and the second power amplification module are the same.
  • the optical signal generation module includes a seed source, an optical isolator, a circulator, two pump sources, two combiners, an erbium-doped optical fiber and a Faraday reflector.
  • the first power amplification module and the second power amplification module each include a circulator, a combiner, a pump source, an optical fiber, a filter and a Faraday reflector.
  • the light source generation device includes an optical signal generation module and two power amplification modules with different amplification powers.
  • the two power method modules included in the light source generation device are selected from H power amplification modules.
  • H is a positive integer.
  • the light source generation device includes an optical signal generation module and two power amplification modules, such as a first power amplification module and a second power amplification module.
  • the first power amplification module The amplification power of the amplification module and the second power amplification module are different, and the amplification power of the first power amplification module is greater than the amplification power of the second power amplification module.
  • the optical signal generation module includes a seed source, an optical isolator, a circulator, two pump sources, two combiners, an erbium-doped optical fiber and a Faraday reflector.
  • the first power amplification module includes a circulator, a combiner, two pump sources, an optical fiber, a filter and a Faraday reflector.
  • the second power amplification module includes a circulator, a combiner, a pump source, an optical fiber, a filter and a Faraday reflector.
  • the optical signal generation module in the light source generation device can switch the connected N power amplification modules to M power amplification modules from the H power amplification modules. Therefore, power amplification modules can be added or reduced as needed according to actual application scenarios, with greater flexibility.
  • M, H and N are all positive integers, and H is greater than or equal to M and N.
  • the light source generation device provided by the embodiment of the present application supports pluggability. Based on this, the optical signal generation module in the light source generation device can amplify the power of the connected N units by plugging and unplugging. The module is switched to M power amplifier modules.
  • the pluggability feature between the optical signal generation module and the power amplification module in the embodiment of the present application can be realized through the flange port or through fiber fusion splicing, which is not limited here.
  • the optical signal generation module in the current light source generation device is connected to the first power amplification module.
  • the optical signal generation module switches the connected first power amplification module to a second power amplification module with lower amplification power by plugging and unplugging.
  • the optical signal generation module in the current light source generation device is connected to the second power amplification module.
  • the optical signal generation module switches the connected second power amplification module to the first power amplification module with higher amplification power by plugging and unplugging.
  • the optical signal generation module in the current light source generation device is connected to the second power amplification module.
  • the optical signal generation module is connected to the second power module and simultaneously connected to the first power amplification module by plugging and unplugging.
  • the optical signal generation module in the current light source generation device is connected to the first power amplification module and the second power amplification module.
  • the optical signal generation module remains connected to the first power module and switches the connected second power amplification module to a third power amplification module with higher amplification power by plugging and unplugging. module.
  • the optical signal generation module in the current light source generation device is connected to the first power amplification module and the second power amplification module.
  • the optical signal generation module can switch the connected first power amplification module and the second power amplification module to the third power amplification module and the fourth power amplification module with higher amplification power by plugging and unplugging. Amplification module.
  • each of the N power amplification modules connected to the optical signal generation module in the embodiment of the present application can be located in a different position.
  • the light source generation device is installed on a vehicle, and the optical signal generation module in the light source generation device is connected to the first power amplification module and the second power amplification module.
  • the first power amplification module may be located at the front of the vehicle, and the second power amplification module may be located at the rear of the vehicle.
  • the light source generation device is installed on a vehicle, and the optical signal generation module in the light source generation device is connected to the first power amplification module, the second power amplification module, and the third power amplification module.
  • the first power amplification module and the second power amplification module may be located at the front of the vehicle, and the third power amplification module may be located at the rear of the vehicle.
  • the light source generation device is installed on a vehicle, and the optical signal generation module in the light source generation device is connected to the first power amplification module, the second power amplification module, and the third power amplification module.
  • the first power amplification module may be located at the front of the vehicle, the second power amplification module may be located at the body of the vehicle, and the third power amplification module may be located at the rear of the vehicle.
  • a filter may also be included between the optical signal generation module and the power amplification module in the light source generation device. This allows the optical signal pulses generated by the optical signal life module to be denoised through the filter and then transmitted to the power amplification module to better ensure the quality of the optical signal pulses obtained by the power amplification module.
  • a first collimator, a filter and a second collimator may also be included between the optical signal generation module and the power amplification module in the light source generation device.
  • the first collimator is used to convert the optical signal pulse in the optical signal generation module into collimated light;
  • the second collimator is used to couple the collimated light to the N power amplifiers. module.
  • the optical signal pulses generated by the optical signal generation module are sequentially transmitted to the N power amplification modules through a first collimator, a filter, and a second collimator.
  • This allows light to be coupled into the power amplification module with maximum efficiency, which can effectively improve energy utilization while ensuring the quality of optical signal pulses.
  • the collimator structure in the embodiment of the present application can be implemented using different structures.
  • the structure of the first collimator can use a single lens or a combination of lenses.
  • the collimation structure can use common lenses such as single-sided convex lenses, double-sided convex lenses or prisms that refract divergent light into parallel light; or, the collimation structure can use a combination of convex lenses and concave lenses, a combination of convex lenses and convex lenses, a convex lens A combination of different lenses, such as a combination of prisms, to refract divergent light rays into parallel light rays.
  • the first collimator and the second collimator in the embodiment of the present application are optional components.
  • the first collimator and the second collimator can be used between the optical signal generation module and the second collimator.
  • a first collimator and a second collimator are added between the power amplification modules.
  • the light emitted by the seed source in the optical signal generation module is parallel light, there is no need to add a third collimator between the optical signal generation module and the power amplification module.
  • a collimator and a second collimator are optional components.
  • the optical signal pulses output by the power amplification module connected to the optical signal generation module in the light source generation device can be converged to the third collimator for output, thereby effectively improving energy utilization.
  • the third collimator can also be connected to the optical splitter as shown in Figure 9 to achieve split light output, thereby enabling better power interception and greater flexibility.
  • the optical signal generation module can also perform time domain gating by controlling the switch of the third collimator for light output as shown in Figure 10, thereby effectively removing parasitics. pulse to reduce the premature leakage of optical signal pulses.
  • the light source generating device shown in FIGS. 1 to 10 does not constitute a limitation of the system architecture of the light source generating device to which the embodiments of the present application can be applied. It is only a specific example of the light source generating device. The present application can also be based on the above The content is to deform the light source generating device and is not limited here.
  • An embodiment of the present application also provides a lidar, which includes an optical signal generation module in any of the above light source generating devices.
  • FIG 11 provides a schematic diagram of a possible structure of the radar device.
  • the lidar 1100 may include a processing module 1101 and an optical signal generation module 1102.
  • the processing module 1101 may be a processor in a radar device or other chips with optical signal processing functions.
  • the processing module 1101 is connected to the optical signal generation module in the light source generation device to control the operation of the light source generation device.
  • the specific control method is a common control method, which will not be described again here.
  • an embodiment of the present application also provides a terminal device, which includes the above-mentioned light source generating device.
  • the terminal device may be a vehicle (such as an unmanned vehicle, a smart vehicle, an electric vehicle, or a digital vehicle, etc.), a robot, a mapping device, a drone, or a smart home device (such as a television, a sweeping robot, or a smart desk lamp).
  • audio systems such as industrial equipment
  • intelligent transportation equipment such as automated guided transportation (automated guided vehicle (AGV), unmanned transport vehicle, or truck, etc.)
  • smart terminal mobile phone, computer, tablet, PDA, desktop, headset, audio, wearable device, vehicle-mounted device, virtual reality device, augmented reality device etc.
  • Figure 12 provides a possible structural diagram of a terminal device.
  • the terminal equipment 1200 may include a radar system 1210, which includes an optical signal generation module 1211 in a light source generation device, and the terminal equipment 1200 further includes a power amplification module 1220 in the light source generation device.
  • a radar system 1210 which includes an optical signal generation module 1211 in a light source generation device
  • the terminal equipment 1200 further includes a power amplification module 1220 in the light source generation device.

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Abstract

一种光源产生装置、探测设备及终端，用以在获得较高功率的前提下，更好的提升光纤激光器的灵活性。用于自动驾驶或者辅助驾驶。光源产生装置包括：光信号生成模块以及N个功率放大模块，所述光信号生成模块与所述N个功率放大模块相连，所述N为正整数；所述光信号生成模块，用于生成光信号脉冲；所述N个功率放大模块，用于对所述光信号脉冲进行放大；所述光信号生成模块位于激光雷达内，所述N个功率放大模块位于激光雷达外部。

Description

一种光源产生装置、探测设备及终端 技术领域
本申请涉及传感器技术领域，尤其涉及一种光源产生装置、探测设备及终端。
背景技术
激光雷达是未来自动驾驶领域不可或缺的重要传感器，随着激光探测技术的飞速发展，对激光雷达的性能也提出了更高的要求。其中，针对光纤激光器的平均功率普遍偏低的情况，对于高性能光纤激光器的灵活性以及电光转化效率更为重视。
目前，提高光纤激光器功率的方式一般多采用更多的泵浦源数量和更长的增益光纤，然而，该种方式电光转化效率依旧偏低，以及还会导致系统体积增加，灵活性较差。
发明内容
本申请实施例提供了一种光源产生装置、探测设备及终端，更好的提升光纤激光器的灵活性。
第一方面，本申请实施例提供了一种光源产生装置，该光源产生装置包括：
光信号生成模块以及N个功率放大模块，所述光信号生成模块与所述N个功率放大模块相连，所述N为正整数；所述光信号生成模块，用于生成光信号脉冲；所述N个功率放大模块，用于对所述光信号脉冲进行放大；所述光信号生成模块位于激光雷达内，所述N个功率放大模块位于激光雷达外部。
由于目前的光纤激光器的灵活性较差，电光转化效率较低，为此，本申请提供了一种光源产生装置，其中，所述光源产生装置中的光信号生成模块放置于激光雷达内，所述光源产生装置中的功率放大模块放置于激光雷达外部，通过将光信号生成模块与功率放大模块进行分离设置，能够有效改善光源产生装置的热分布情况，有利于系统散热，从而能够有效避免所述光源产生装置在实际应用过程中产生热透镜效应导致的电光转化效率较低的问题。此外，基于本申请实施例提供的光源产生装置，在实际应用过程中，可以根据场景和需求调整所述光信号生成模块连接的功率放大模块的数量，以及所述光信号生成模块连接的功率放大模块的布局位置等，例如，当需要提高光纤激光器的功率时，可以通过增加光信号生成模块连接的功率放大模块的数量的方式，灵活的进行调整，有效降低现有光纤激光器在提高功率时，通过增加激光器的增益光纤长度，或增加激光器的泵浦源数量导致的系统体积较大，散热性差等问题。
打破了传统光纤激光器系统架构的设计思路，能够有效提升雷达系统布局场景的自由度，有效缩小激光雷达的体积。在一种可能的设计中，所述光信号生成模块生成的所述光信号脉冲通过滤波器传输到所述N个功率放大模块；所述滤波器用于对所述光信号脉冲进行降噪处理。
通过该种设计方式，光信号生成模块在将生成的光信号脉冲传输到功率放大模块时，通过滤波器对所述光信号脉冲进行降噪处理，能够更好的保证功率放大模块获取到的光信号脉冲的质量。
在一种可能的设计中，所述光信号生成模块生成的所述光信号脉冲依次通过第一准直 器，滤波器，第二准直器传输到所述N个功率放大模块；所述第一准直器用于将所述光信号生成模块内的光信号脉冲转变成准直光；所述第二准直器用于将所述准直光耦合至所述N个功率放大模块。
通过该种设计方式，光信号生成模块在将生成的光信号脉冲传输到功率放大模块时，依次通过第一准直器，滤波器以及第二准直器，能够使光最大效率的耦合进入功率放大模块，在保证光信号脉冲的质量的同时，还能够有效提升能量的利用率。
在一种可能的设计中，所述光信号生成模块包括用于生成光信号脉冲的种子源、至少一个光隔离器、至少一个泵浦源、至少一个掺铒光纤、环形器、法拉第反射镜、至少一个组合器以及温控装置中的一个或多个。
通过该种设计方式，提供了一种光信号生成模块的构成，例如，光信号生成模块可以包括种子源、至少一个光隔离器、至少一个泵浦源、至少一个掺铒光纤、环形器、法拉第反射镜、至少一个组合器以及温控装置中的一个或多个，在此并不进行限定。
在一种可能的设计中，所述光信号生成模块中的泵浦源包括第一泵浦源和第二泵浦源，所述第一泵浦源的波段为900～1000nm，所述第二泵浦源的波段为1400nm～1500nm。
通过该种设计方式，光信号生成模块采用双向泵浦方案，例如，采用波段为900～1000nm的泵浦源以及波段为1400nm～1500nm的泵浦源，能够有效改善量子亏损导致的效率损失。
在一种可能的设计中，所述功率放大模块包括环形器、至少一个组合器、至少一个泵浦源、至少一个光纤、过滤器、温控装置以及法拉第反射镜中的一个或多个；其中，所述N个功率放大模块中的每个功率放大模块的构造都不相同；或者，所述N个功率放大模块中每个功率放大模块的构造都相同；或者，所述N个功率放大模块中部分功率放大模块的构造相同。
通过该种设计方式，提供了一种功率放大模块的构成，例如，所述功率放大模块包括环形器、至少一个组合器、至少一个泵浦源、至少一个光纤、过滤器、温控装置以及法拉第反射镜中的一个或多个，在此并不进行限定。
在一种可能的设计中，从H个功率放大模块中选取所述N个功率放大模块进行连接，构成所述光源产生装置；所述H为正整数，所述H大于等于所述N。
通过该种设计方式，本申请提供了一种灵活的光源产生装置构造方式，例如，可以从H个功率放大模块中进行选取，从而可以根据实际的需求进行选取，打破了传统光纤激光器系统架构的设计思路，有效提升了装置构造的自由度。
在一种可能的设计中，从所述H个功率放大模块中，将连接的所述N个功率放大模块切换为M个功率放大模块，所述M为正整数；其中，所述N个功率放大模块与所述M个功率放大模块在不同场景下使用。
通过该种设计方式，可以根据实际应用场景，按需增加或减少需要连接的功率放大模块和/或功率放大模块数量，例如，可以从所述H个功率放大模块中，将连接的所述N个功率放大模块切换为M个功率放大模块，从而可以根据实际的需求进行调整，适应性更强。
在一种可能的设计中，当需要降低放大功率时，所述光信号生成模块连接的第一功率放大模块切换为第二功率放大模块，所述第一功率放大模块的放大功率大于所述第二功率放大模块的放大功率。
通过该种设计方式，在需要降低放大功率的场景下，光信号生成模块可以将连接的放大功率较大的第一功率放大模块切换为放大功率较小的第二功率放大模块，有效提升了系 统的性能，灵活性更强。
在一种可能的设计中，当需要提升放大功率时，所述光信号生成模块连接的所述第二功率放大模块切换为所述第一功率放大模块，所述第一功率放大模块的放大功率大于所述第二功率放大模块的放大功率。
通过该种设计方式，在需要提升放大功率的场景下，光信号生成模块可以将连接的放大功率较小的第二功率放大模块切换为放大功率较大的第一功率放大模块，有效提升了系统的性能，灵活性更强。
在一种可能的设计中，当需要提升放大功率时，所述光信号生成模块在连接所述第一功率模块的基础上，增加连接所述第二功率放大模块。
在一种可能的设计中，当需要提升放大功率时，所述光信号生成模块连接的所述第一功率放大模块切换为所述第二功率放大模块与第三功率放大模块，所述第二功率放大模块与所述第三功率放大模块的放大功率之和大于所述第一功率放大模块的放大功率。
在一种可能的设计中，当需要降低放大功率时，所述光信号生成模块连接的所述第二功率放大模块与所述第三功率放大模块切换为所述第一功率放大模块，所述第二功率放大模块与所述第三功率放大模块的放大功率之和大于所述第一功率放大模块的放大功率。
通过上述几种更换功率模块的设计方式，列举了本申请实施例在实际应用场景下对光源产生装置的构造以及调整操作，灵活性以及适应性更强。
在一种可能的设计中，可以通过插拔的方式，将连接的功率放大模块由所述N个功率放大模块切换为M个功率放大模块。
通过该种设计方式，本申请实施例支持可“拔插”的拓展特性，灵活性更强。
在该种实施方式中，可拔插的特性可通过法兰盘端口或者通过光纤熔接的方式进行实现，在此并不进行限定。
在一种可能的设计中，所述第二功率放大模块的光纤数量小于所述第一功率放大模块中的光纤数量；或所述第二功率放大模块的泵浦源功率小于所述第一功率放大模块中的泵浦源功率。
通过该种设计方式，提供了一种第一功率放大模块大于第二功率放大模块的构成方式。
在一种可能的设计中，所述功率放大模块独立于所述光信号产生模块进行温控调整。
通过该种设计方式，光信号生成模块与功率放大模块独立的温控系统，能够使光信号生成模块与功率放大模块在更好的保证光信号脉冲的质量的同时，使雷达系统产生的热量能够更低且更加分布，有利于系统的热平衡温度降低，热平衡温度的降低，也有利于实现更高的系统总电光转换效率。
在一种可能的设计中，通过所述N个功率放大模块放大后的光信号脉冲汇聚到第三准直器进行输出。
通过该种设计方式，功率放大模块对放大后的光信号脉冲通过第三准直器进行输出，能够有效提升能量的利用率。
在一种可能的设计中，所述光信号生成模块还用于：
通过控制第三准直器用于进行光输出的开关，进行时域门控。
通过该种设计方式，光信号生成模块通过控制光开关实现时域门控，能够有效去除寄生脉冲，减少光信号脉冲的提前外泄。
在一种可能的设计中，所述第三准直器还用于与分光器相连，实现分光输出。
通过该种设计方式，在进行光信号脉冲输出时，通过分光器进行输出，能够更好的实现功率截取，灵活性更强。
第二方面，提供了一种探测设备，该探测设备包括上述第一方面及其任一种可能的设计中提供的光源产生装置。在上述技术方案中，通过将光信号生成模块放置于激光雷达内，将功率放大模块放置于激光雷达外部，可以根据场景和需求调整功率放大模块和布局位置等，打破了传统光纤激光器系统架构的设计思路，能够有效提升雷达系统布局场景的自由度，此外，通过将光信号生成模块与功率放大模块的分立设置，能够有效缩小激光雷达的体积。
第三方面，本申请实施例提供一种终端，该终端可包括上述第一方面及其任一种可能的设计中提供的光源产生装置。可选的，该终端可以为智能通信设备、智能家居设备、智能制造设备、智能运输设备等，例如车辆、无人机、无人运输车、机器人等。
在一种可能的设计中，当该终端为车辆时，该车辆可以包括上述第一方面及其任一种可能的设计中提供的光源产生装置。
其中，光源产生装置包括光信号生成模块以及N个功率放大模块，所述光信号生成模块与所述N个功率放大模块相连，所述N为正整数；所述光信号生成模块，用于生成光信号脉冲；所述N个功率放大模块，用于对所述光信号脉冲进行放大；所述光信号生成模块位于激光雷达内，所述N个功率放大模块位于激光雷达外部。
采用第三方面提供的车辆，可以通过所述光源产生装置产生光信号脉冲，实现对目标物体的探测。
第四方面，本申请提供一种芯片，芯片与存储器相连，用于读取并执行存储器中存储的计算机程序或指令，以控制上述第一方面或第一方面的任一种可能的光源产生装置实现上述内容。
第五方面，提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序或指令，当计算机程序或指令被光源产生装置执行时，使得该光源产生装置执行上述第一方面或第一方面的任意可能的涉及的操作。
在一种可能的设计中，光源产生装置可以通过执行所述计算机程序或指令，从H个功率放大模块中选取所述N个功率放大模块进行连接。
在一种可能的设计中，光源产生装置可以通过执行所述计算机程序或指令，从所述H个功率放大模块中，将连接的所述N个功率放大模块切换为M个功率放大模块。
在一种可能的设计中，当需要降低放大功率时，光源产生装置可以通过执行所述计算机程序或指令，将连接的第一功率放大模块切换为第二功率放大模块，所述第一功率放大模块的放大功率大于所述第二功率放大模块的放大功率。
在一种可能的设计中，当需要提升放大功率时，光源产生装置可以通过执行所述计算机程序或指令，将连接的所述第二功率放大模块切换为所述第一功率放大模块，所述第一功率放大模块的放大功率大于所述第二功率放大模块的放大功率。
在一种可能的设计中，当需要提升放大功率时，光源产生装置可以通过执行所述计算机程序或指令，将连接所述第一功率模块的基础上，增加连接所述第二功率放大模块。
当需要提升放大功率时，所述光信号生成模块连接的所述第一功率放大模块切换为所述第二功率放大模块与第三功率放大模块，所述第二功率放大模块与所述第三功率放大模块的放大功率之和大于所述第一功率放大模块的放大功率。
在一种可能的设计中，当需要降低放大功率时，光源产生装置可以通过执行所述计算机程序或指令，将连接的所述第二功率放大模块与所述第三功率放大模块切换为所述第一功率放大模块，所述第二功率放大模块与所述第三功率放大模块的放大功率之和大于所述第一功率放大模块的放大功率。
第六方面，提供本申请提供一种计算机程序产品，该计算机程序产品包括计算机程序或指令，当计算机程序或指令被光源产生装置执行时，使得该光源产生装置执行上述第一方面或第一方面的任意可能涉及的操作。
附图说明
图1为本申请实施例提供的一种光源产生装置的应用场景示意图；
图2为本申请实施例提供的一种光源产生装置的原理结构示意图；
图3为本申请实施例提供的第一种光源产生装置的应用架构示意图；
图4为本申请实施例提供的第二种光源产生装置的应用架构示意图；
图5为本申请实施例提供的第三种光源产生装置的应用架构示意图；
图6为本申请实施例提供的第四种光源产生装置的应用架构示意图；
图7为本申请实施例提供的第五种光源产生装置的应用架构示意图；
图8为本申请实施例提供的第六种光源产生装置的应用架构示意图；
图9为本申请实施例提供的第七种光源产生装置的应用架构示意图；
图10为本申请实施例提供的第八种光源产生装置的应用架构示意图；
图11为本申请实施例提供的一种激光雷达的结构示意图；
图12为本申请实施例提供的一种终端设备的结构示意图。
具体实施方式
下面将结合附图对本申请实施例作进一步描述。
如图1所示，列举了本申请光源产生装置可选的应用场景。
其中，本申请实施例中的光源产生装置可以被安装在移动设备上，例如，本申请中光源产生装置可以应用于交通工具上或者机器人上。
上述的交通工具包括但不限定以非可再生能源或新能源作为驱动的交通工具，其中非可再生能源驱动的交通工具可以包括以汽油、柴油、乙醇等燃料驱动的汽车、公交车、卡车等。新能源作为驱动的交通工具可以包括以电能作为驱动的汽车、公交车、卡车等。
示例性的，本申请中光源产生装置可以被安装在车辆上，应用于自动驾驶场景中、或者也可应用于网联车场景等情况下，用作车载激光雷达；再例如，本申请中光源产生装置应用于被安装在飞行器上，用作机载激光雷达等。
本申请一种可选的应用场景，光源产生装置还可以安装于移动平台，如卫星。在此情况下，光源产生装置需要移动平台中的其它装置的协助以确定自身当前的位置和转向信息，这样可保证测量数据的可用性。
本申请一种可选的应用场景，光源产生装置也可以被安装在固定平台，例如，激光雷达可以安装于路侧单元(road side unit，RSU)、屋顶或基站等。
此外，本申请中的光源产生装置还可应用于其它可能的场景，在此不进行限定。
其中，由于技术的飞速发展，对于高性能光纤激光器的灵活性以及电光转化效率越来越重视。而目前针对光纤激光器的平均功率普遍偏低的情况，提高光纤激光器功率的方式一般多采用更多的泵浦源数量和更长的增益光纤，但是该种方式电光转化效率依旧偏低，以及还会导致系统体积增加，灵活性较差。
综上，亟需一种激光器，在获得较高功率的前提下，有效保证激光器的电光转化效率以及灵活性。
基于此，本申请实施例提供一种光源产生装置。通过将光信号生成模块放置于激光雷达内，将功率放大模块放置于激光雷达外部，可以根据场景和需求调整功率放大模块和布局位置等，打破了传统光纤激光器系统架构的设计思路，能够有效提升雷达系统布局场景的自由度。
下面结合具体的附图以及实施例对本申请提供的光源产生装置进行详细的说明。
图2示出了本申请实施例提供的一种光源产生装置。该光源产生装置包含光信号生成模块210以及N个功率放大模块220。所述光信号生成模块210与所述N个功率放大模块220相连，所述N为正整数。
其中，所述光信号生成模块210，用于生成光信号脉冲。
所述N个功率放大模块220，用于对所述光信号脉冲进行放大；所述光信号生成模块位于激光雷达内，所述N个功率放大模块位于激光雷达外部。
作为一个可选的方案，所述N个功率放大模块是从H个功率放大模块中选取的，所述H为正整数且大于等于所述N。
示例性的，假设车辆中部署了5个功率放大模块(即H＝5)，分别为功率放大模块1～功率放大模块5，以及一个光信号生成模块，则所述光信号生成模块可以根据实际需求，从5个功率放大模块中进行选取。例如，所述光信号生成模块选取功率放大模块1、功率放大模块2以及功率放大模块5这3个功率放大模块进行连接(即N＝3)，构成本申请实施例所述的光源产生装置；再例如，所述光信号生成模块还可以根据实际需求，通过插拔的方式，将连接的功率放大模块1、功率放大模块2以及功率放大模块5切换成功率放大模块3与功率放大模块4。
作为一个可选的方案，本申请实施例中所述H个功率放大模块支持M个光信号生成模块的使用，所述H为正整数，且大于等于M个光信号生成模块分别选取的功率放大模块的数量之和。
例如，若所述M个光信号生成模块中每个光信号生成模块选取的功率放大模块的数量分别为N 1、N 2、N 3…N (M-1)以及N M，则H≥(N 1+N 2+N 3…+N (M-1)+N M)。
示例性的，假设车辆中部署了6个功率放大模块(即H＝6)，分别为功率放大模块1～功率放大模块6，车辆中部署了两个激光雷达，每个激光雷达中包括一个光信号生成模块，分别为光信号生成模块1与光信号生成模块2。
在实际进行连接，构造光源产生装置时，例如，光信号生成模块1可以根据实际需求从所述6个功率放大模块中选取功率放大模块1与功率放大模块3进行连接，构成光源产生装置1，光信号生成模块2可以根据实际需求从剩余的4个功率放大模块中选取功率放大模块4进行连接，构成光源产生装置2。
作为一个可选的方案，所述光信号生成模块210可以包括下列无源器件中的一个或多 个：
用于生成光信号脉冲的种子源、至少一个光隔离器、至少一个泵浦源、至少一个掺铒光纤、环形器、法拉第反射镜、至少一个组合器以及温控装置中的一个或多个。
其中，当所述光信号生成模块210中包括多个泵浦源时，不同泵浦源的波段可以相同也可以不同。
例如，当所述光信号生成模块210包括泵浦源1、泵浦源2以及泵浦源3时，泵浦源1与泵浦源2的波段可以设置为900～1000nm，泵浦源3的波段可以设置为1400nm～1500nm；再例如，当所述光信号生成模块210包括泵浦源1、泵浦源2、泵浦源3以及泵浦源4时，泵浦源1～泵浦源4的波段可以都设置为900～1000nm。
其中，种子源，用于发射探测的光线，即光信号脉冲。所述种子源发射的光线可以为非可见光，如波长大于760nm的光线。
此外，本申请实施例中所述光源产生装置中的种子源可选用不同的光源，如采用激光发射器，发射的激光具有相干性好、平行度好以及亮度高等优点，适合进行探测。
作为一个可选的方案，所述功率放大模块220可以包括下列无源器件中的一个或多个：
环形器、至少一个组合器、至少一个泵浦源，至少一个光纤，过滤器、法拉第反射镜以及温控装置中的一个或多个。
其中，本申请实施例中当光信号生成模块与功率放大模块都包括温控装置时，用于调整所述光信号生成模块温度的温控装置与用于调整所述功率放大模块温度的温控装置可以不是同一温控装置，即所述光信号生成模块的温控装置独立于所述功率放大模块的温控装置。
基于该种构造设计方式，能够使光信号生成模块与功率放大模块独立进行温控调整，使光信号生成模块与功率放大模块在更好的保证光信号脉冲的质量的同时，雷达系统产生的热量能够更低且更加分布，有利于系统的热平衡温度降低，热平衡温度的降低，也有利于实现更高的系统总电光转换效率。
其中，为了更好的对本申请提供的光源产生装置进行介绍，下面基于上述图2所示的架构，对所述光源产生装置的构造进行举例介绍，具体并不限于下述几种情况：
情况1：光源产生装置包括一个光信号生成模块，以及一个功率放大模块，所述光源产生装置包括的该功率方法模块是从H个功率放大模块中选取的，所述H为正整数。
示例性的，图3所示，假设本申请实施例中提供的光源产生装置包括光信号生成模块以及一个功率放大模块。
其中，所述光信号生成模块包括种子源、一个光隔离器、一个环形器、泵浦源1、泵浦源2、两个组合器、一个掺铒光纤以及一个法拉第反射镜；所述功率放大模块包括一个环形器、一个组合器、一个泵浦源，一个光纤，一个过滤器以及一个法拉第反射镜。
其中，所述光信号生成模块中的泵浦源1的波段可以设置为900～1000nm，泵浦源2的波段可以设置为1400nm～1500nm。从而实现双向泵浦，有效改善量子亏损导致的效率损失。
情况2：光源产生装置包括一个光信号生成模块，以及两个放大功率相同的功率放大模块，所述光源产生装置包括的两个功率方法模块是从H个功率放大模块中选取的，所述H为正整数。
示例性的，图4所示，假设本申请实施例中提供的光源产生装置包括光信号生成模块以及两个功率放大模块，例如第一功率放大模块与第二功率放大模块，所述第一功率放大模块与所述第二功率放大模块的放大功率相同。
其中，所述光信号生成模块包括种子源、一个光隔离器、一个环形器、两个泵浦源、两个组合器、一个掺铒光纤以及一个法拉第反射镜。
所述第一功率放大模块与第二功率放大模块都包括一个环形器、一个组合器、一个泵浦源，一个光纤，一个过滤器以及一个法拉第反射镜。
情况3：光源产生装置包括一个光信号生成模块，以及两个放大功率不相同的功率放大模块，所述光源产生装置包括的两个功率方法模块是从H个功率放大模块中选取的，所述H为正整数。
示例性的，图5所示，假设本申请实施例中提供的光源产生装置包括光信号生成模块以及两个功率放大模块，例如第一功率放大模块与第二功率放大模块，所述第一功率放大模块与所述第二功率放大模块的放大功率不相同，且所述第一功率放大模块的放大功率大于所述第二功率放大模块的放大功率。
其中，所述光信号生成模块包括种子源、一个光隔离器、一个环形器、两个泵浦源、两个组合器、一个掺铒光纤以及一个法拉第反射镜。
所述第一功率放大模块包括一个环形器、一个组合器、两个泵浦源，一个光纤，一个过滤器以及一个法拉第反射镜。
所述第二功率放大模块包括一个环形器、一个组合器、一个泵浦源，一个光纤，一个过滤器以及一个法拉第反射镜。
进一步的，本申请实施例基于不同的场景，光源产生装置中的光信号生成模块可以从所述H个功率放大模块中，将连接的所述N个功率放大模块切换为M个功率放大模块。从而，能够根据实际应用场景，按需增加或减少功率放大模块，灵活性更强。其中，M、H以及N都为正整数，H大于等于M与N。
作为一个可选的方案，本申请实施例提供的光源产生装置支持可插拔的特性，基于此，光源产生装置中的光信号生成模块，可以通过插拔的方式，将连接的N个功率放大模块切换为M个功率放大模块。
其中，本申请实施例中光信号生成模块与功率放大模块之间的可拔插的特性可通过法兰盘端口或者通过光纤熔接的方式进行实现，在此并不进行限定。
示例性的，假设当前光源产生装置中的光信号生成模块与第一功率放大模块相连。
当需要降低放大功率时，所述光信号生成模块通过插拔的方式，将连接的第一功率放大模块切换为放大功率较低的第二功率放大模块。
示例性的，假设当前光源产生装置中的光信号生成模块与第二功率放大模块相连。
当需要提升放大功率时，所述光信号生成模块通过插拔的方式，将连接的第二功率放大模块切换为放大功率较高的第一功率放大模块。
示例性的，假设当前光源产生装置中的光信号生成模块与第二功率放大模块相连。
当需要提升放大功率时，所述光信号生成模块在连接所述第二功率模块的基础上，通过插拔的方式，同时连接所述第一功率放大模块。
示例性的，假设当前光源产生装置中的光信号生成模块与第一功率放大模块和第二功 率放大模块相连。
当需要提升放大功率时，所述光信号生成模块保持连接所述第一功率模块的基础上，通过插拔的方式，将连接的第二功率放大模块切换为放大功率较高的第三功率放大模块。
示例性的，假设当前光源产生装置中的光信号生成模块与第一功率放大模块和第二功率放大模块相连。
当需要提升放大功率时，所述光信号生成模块可以通过插拔的方式，将连接的第一功率放大模块与第二功率放大模块切换为放大功率较高的第三功率放大模块与第四功率放大模块。
进一步的，本申请实施例中与光信号生成模块相连的N个功率放大模块中的每个功率放大模块可以位于不同的位置。
示例性的，假设光源产生装置安装在车辆上，所述光源产生装置中的光信号生成模块与第一功率放大模块和第二功率放大模块相连。
其中，第一功率放大模块可以位于所述车辆的车头，所述第二功率放大模块可以位于所述车辆的车尾。
示例性的，假设光源产生装置安装在车辆上，所述光源产生装置中的光信号生成模块与第一功率放大模块、第二功率放大模块以及第三功率放大模块相连。
其中，第一功率放大模块与第二功率放大模块可以位于所述车辆的车头，所述第三功率放大模块可以位于所述车辆的车尾。
示例性的，假设光源产生装置安装在车辆上，所述光源产生装置中的光信号生成模块与第一功率放大模块、第二功率放大模块以及第三功率放大模块相连。
其中，第一功率放大模块可以位于所述车辆的车头，所述第二功率放大模块可以位于所述车辆的车身，所述第三功率放大模块可以位于车辆的车尾。
进一步的，如图6所示，光源产生装置中的光信号生成模块与功率放大模块之间还可以包括滤波器。从而能够使光信号生命模块生成的光信号脉冲通过滤波器进行降噪处理，然后传输到功率放大模块，更好的保证功率放大模块获取到的光信号脉冲的质量。
进一步的，如图7所示，光源产生装置中的光信号生成模块与功率放大模块之间还可以包括第一准直器、滤波器以及第二准直器。其中，所述第一准直器用于将所述光信号生成模块内的光信号脉冲转变成准直光；所述第二准直器用于将所述准直光耦合至所述N个功率放大模块。
示例性的，光信号生成模块生成的所述光信号脉冲依次通过第一准直器，滤波器，第二准直器传输到所述N个功率放大模块。从而能够使光最大效率的耦合进入功率放大模块，在保证光信号脉冲的质量的同时，还能够有效提升能量的利用率。
其中，本申请实施例中的准直器结构可采用不同的结构实现。
例如，第一准直器的结构可以采用单一的透镜，也可采用透镜组合。具体的，准直结构可采用单面凸透镜、双面凸透镜或者棱镜等常见的将发散光线折射成平行光线的透镜；或者，准直结构可采用凸透镜与凹透镜的组合、凸透镜与凸透镜的组合、凸透镜与棱镜的组合等不同的透镜组合，以将发散的光线折射成平行的光线。
其中，本申请实施例中的第一准直器与第二准直器作为一个可选的部件，可以在光信号生成模块中的种子源发射的光线是发散光线时，在光信号生成模块与功率放大模块之间 增加第一准直器与第二准直器，在光信号生成模块中的种子源发射的光线是平行光线时，在光信号生成模块与功率放大模块之间可以不增加第一准直器与第二准直器。
此外，如图8所示，光源产生装置中与光信号生成模块相连的功率放大模块输出的光信号脉冲可以汇聚到第三准直器进行输出，从而能够有效提升能量的利用率。
进一步的，在上述图8的基础上，所述第三准直器还可以如图9所示，与分光器相连，实现分光输出进行输出，从而能够更好的实现功率截取，灵活性更强。
进一步的，在上述图9的基础上，所述光信号生成模块还可以如图10所示，通过控制第三准直器用于进行光输出的开关，进行时域门控，从而能够有效去除寄生脉冲，减少光信号脉冲的提前外泄。
应当理解的是，上述图1～10所示的光源产生装置并不构成本申请实施例能够适用的光源产生装置系统架构的限定，仅仅为光源产生装置的一个具体示例，本申请还可以基于上述内容对光源产生装置进行变形，在此并不进行限定。
本申请实施例还提供了一种激光雷达，所述激光雷达包括上述任一光源产生装置中的光信号生成模块。
图11提供了雷达装置可能的结构示意图。该激光雷达1100可包括处理模块1101以及光信号生成模块1102。
其中，所述处理模块1101可为雷达装置中的处理器或者其他具有光信号处理功能的芯片。处理模块1101与所述光源产生装置中的光信号生成模块连接，以控制光源产生装置工作，具体的控制方式为常见的控制方式，在此不再赘述。
本申请实施例还提供一种终端设备，该终端设备包含上述光源产生装置。示例性地，该终端设备例如可以是车辆(例如无人车、智能车、电动车、或数字汽车等)、机器人、测绘设备、无人机、智能家居设备(例如电视、扫地机器人、智能台灯、音响系统、智能照明系统、电器控制系统、家庭背景音乐、家庭影院系统、对讲系统、或视频监控等)、智能制造设备(例如工业设备)、智能运输设备(例如自动导引运输(automated guided vehicle，AGV)、无人运输车、或货车等)、或智能终端(手机、计算机、平板电脑、掌上电脑、台式机、耳机、音响、穿戴设备、车载设备、虚拟现实设备、增强现实设备等)等。
例如，图12提供了终端设备可能的结构示意图。该终端设备1200可包括雷达系统1210，所述雷达系统中包括光源产生装置中的光信号生成模块1211，该终端设备1200还包括光源产生装置中的功率放大模块1220。在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (16)

  1. 一种光源产生装置，其特征在于，包括光信号生成模块以及N个功率放大模块，所述光信号生成模块与所述N个功率放大模块相连，所述N为正整数；
    所述光信号生成模块，用于生成光信号脉冲；
    所述N个功率放大模块，用于对所述光信号脉冲进行放大；
    所述光信号生成模块位于激光雷达内，所述N个功率放大模块位于激光雷达外部。
  2. 根据权利要求1所述的光源产生装置，其特征在于，所述光信号生成模块生成的所述光信号脉冲通过滤波器传输到所述N个功率放大模块；
    所述滤波器用于对所述光信号脉冲进行降噪处理。
  3. 根据权利要求1或2所述的光源产生装置，其特征在于，所述光信号生成模块生成的所述光信号脉冲依次通过第一准直器，滤波器，第二准直器传输到所述N个功率放大模块；
    所述第一准直器用于将所述光信号生成模块内的光信号脉冲转变成准直光；
    所述第二准直器用于将所述准直光耦合至所述N个功率放大模块。
  4. 根据权利要求1～3中任一项所述的光源产生装置，其特征在于，所述光信号生成模块包括用于生成光信号脉冲的种子源、至少一个光隔离器、至少一个泵浦源、至少一个掺铒光纤、环形器、法拉第反射镜、至少一个组合器以及温控装置中的一个或多个。
  5. 根据权利要求4所述的光源产生装置，其特征在于，所述光信号生成模块中的泵浦源包括第一泵浦源和第二泵浦源，所述第一泵浦源的波段为900～1000nm，所述第二泵浦源的波段为1400nm～1500nm。
  6. 根据权利要求1～5中任一项所述的光源产生装置，其特征在于，所述功率放大模块包括环形器、至少一个组合器、至少一个泵浦源、至少一个光纤、过滤器、温控装置以及法拉第反射镜中的一个或多个；
    其中，所述N个功率放大模块中的每个功率放大模块的构造都不相同；或者，所述N个功率放大模块中每个功率放大模块的构造都相同；或者，所述N个功率放大模块中部分功率放大模块的构造相同。
  7. 根据权利要求1～6中任一项所述的光源产生装置，其特征在于，从H个功率放大模块中选取所述N个功率放大模块进行连接，构成所述光源产生装置；
    所述H为正整数，所述H大于等于所述N。
  8. 根据权利要求7所述的光源产生装置，其特征在于，通过插拔的方式，从所述H个功率放大模块中，将连接的所述N个功率放大模块切换为M个功率放大模块，所述M为正整数；
    其中，所述N个功率放大模块与所述M个功率放大模块在不同场景下使用。
  9. 根据权利要求8所述的光源产生装置，其特征在于，
    当需要降低放大功率时，所述光信号生成模块连接的第一功率放大模块切换为第二功率放大模块，所述第一功率放大模块的放大功率大于所述第二功率放大模块的放大功率；或
    当需要提升放大功率时，所述光信号生成模块连接的所述第二功率放大模块切换为所述第一功率放大模块，所述第一功率放大模块的放大功率大于所述第二功率放大模块的放大功率；或
    当需要提升放大功率时，所述光信号生成模块在连接所述第一功率模块的基础上，增加连接所述第二功率放大模块；或
    当需要提升放大功率时，所述光信号生成模块连接的所述第一功率放大模块切换为所述第二功率放大模块与第三功率放大模块，所述第二功率放大模块与所述第三功率放大模块的放大功率之和大于所述第一功率放大模块的放大功率；或
    当需要降低放大功率时，所述光信号生成模块连接的所述第二功率放大模块与所述第三功率放大模块切换为所述第一功率放大模块，所述第二功率放大模块与所述第三功率放大模块的放大功率之和大于所述第一功率放大模块的放大功率。
  10. 根据权利要求9所述的光源产生装置，其特征在于，所述第二功率放大模块的光纤数量小于所述第一功率放大模块中的光纤数量；或
    所述第二功率放大模块的泵浦源功率小于所述第一功率放大模块中的泵浦源功率。
  11. 根据权利要求1～10中任一项所述的光源产生装置，其特征在于，所述功率放大模块独立于所述光信号产生模块进行温控调整。
  12. 根据权利要求1～11中任一项所述的光源产生装置，其特征在于，通过所述N个功率放大模块放大后的光信号脉冲汇聚到第三准直器进行输出。
  13. 根据权利要求12所述的光源产生装置，其特征在于，所述光信号生成模块还用于：
    通过控制第三准直器用于进行光输出的开关，进行时域门控。
  14. 根据权利要求12或13所述的光源产生装置，其特征在于，所述第三准直器还用于与分光器相连，实现分光输出。
  15. 一种探测设备，其特征在于，包括如权利要求1-14中任一项所述的光源产生装置。
  16. 一种终端，其特征在于，包括如权利要求1-14中任一项所述的光源产生装置。
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