CN215575802U - Double-transmitting double-receiving hot plug small-package optical module - Google Patents
Double-transmitting double-receiving hot plug small-package optical module Download PDFInfo
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- CN215575802U CN215575802U CN202121124471.5U CN202121124471U CN215575802U CN 215575802 U CN215575802 U CN 215575802U CN 202121124471 U CN202121124471 U CN 202121124471U CN 215575802 U CN215575802 U CN 215575802U
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Abstract
The utility model discloses a double-transmitting double-receiving hot-plug small packaged optical module which comprises a light transmitting component, a light receiving component, a functional circuit and a multi-core optical fiber connector, wherein the light transmitting component is connected with the light receiving component; the light emitting component comprises a first laser component, a second laser component, a first laser emission driving circuit and a second laser emission driving circuit; the light receiving assembly comprises a first detector assembly, a second detector assembly, a first transimpedance amplifier circuit and a second transimpedance amplifier circuit; the function circuit is respectively connected with the light emitting component and the light receiving component and is used for controlling and monitoring the light emitting component and the light receiving component; the multi-core optical fiber connector is respectively connected with the light emitting component and the light receiving component and used for transmitting optical signals. The scheme adopts a double-transmitting and double-receiving design to improve the transmission rate of the optical module, meets the requirements of high density, high speed and high reliability of optical communication of the optical module in the market, and reduces power consumption and product cost compared with a single-transmitting and single-receiving optical module.
Description
Technical Field
The utility model belongs to the technical field of optical communication, and particularly relates to a double-transmitting double-receiving hot-plugging small-package optical module.
Background
With the development of optical fiber communication, an optical transmission system puts higher demands on an optical module, so that the optical module gradually develops towards low cost, small size and large capacity. At present, a hot-pluggable small-package optical module usually adopts a single-transmitting single-receiving mode, that is, both an optical signal and an electrical signal of a transmitting-receiving integrated optical module are transmitted by one port, and the other port receives the optical signal and the electrical signal, so that only one path of signal transmission and one path of signal reception are realized, and the requirements of network capacity improvement and communication rate increase cannot be met. Therefore, how to design a dual-transmitting and dual-receiving optical module to effectively increase the transmission rate of a hot-pluggable small package module becomes a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects or the improvement requirements of the prior art, the utility model provides a double-transmitting double-receiving hot-plugging small-packaged optical module, aiming at effectively improving the transmission rate of the hot-plugging small-packaged module by adopting a double-transmitting double-receiving design and meeting the requirements of network capacity improvement and communication rate increase.
In order to achieve the purpose, the utility model provides a double-transmitting double-receiving hot plug small packaged optical module, which comprises a light transmitting component, a light receiving component, a functional circuit and a multi-core optical fiber connector, wherein the light transmitting component is connected with the light receiving component;
the light emitting component is used for converting an input electric signal into an output optical signal and comprises a first laser component, a second laser component, a first laser emission driving circuit and a second laser emission driving circuit; the first laser assembly is connected with the first laser emission driving circuit, and the second laser assembly is connected with the second laser emission driving circuit;
the optical receiving component is used for converting an input optical signal into an output electrical signal and comprises a first detector component, a second detector component, a first transimpedance amplifier circuit and a second transimpedance amplifier circuit; the first detector component is connected with the transimpedance amplifier circuit, and the second detector component is connected with the transimpedance amplifier circuit;
the functional circuit is respectively connected with the light emitting component and the light receiving component and is used for controlling and monitoring the light emitting component and the light receiving component;
the multi-core optical fiber connector is respectively connected with the optical transmitting assembly and the optical receiving assembly and is used for transmitting the output optical signal and the input optical signal.
Preferably, the output optical signals include a first output optical signal and a second output optical signal, and the input optical signals include a first input optical signal and a second input optical signal.
Preferably, the functional circuit controls and monitors the light emitting component and the light receiving component by using a single chip microcomputer, and reports monitoring information to a host.
Preferably, the monitoring information includes one or more of an operating temperature, an operating voltage, an emission bias current, an emission optical power, and a reception optical power.
Preferably, the multi-core fiber optic connector employs at least a 4-core splice.
Preferably, a first input port of the multi-core optical fiber connector is connected to the first laser component, a second input port of the multi-core optical fiber connector is connected to the second laser component, a first output port of the multi-core optical fiber connector is connected to the first detector component, and a second output port of the multi-core optical fiber connector is connected to the second detector component.
Preferably, multicore fiber connector includes inside adapter and outside adapter, just inside adapter with through fiber connection between the outside adapter, make optical signal be in inside adapter with transmit between the outside adapter.
Preferably, the optical module further comprises a housing, and the light emitting assembly, the light receiving assembly, the functional circuit and the multi-fiber optical connector are all disposed inside the housing.
Preferably, a clamping groove is formed in the shell and used for fixing an external adapter of the multi-core optical fiber connector.
Preferably, the first laser assembly and the second laser assembly employ FBG lasers, DFB lasers or FP lasers.
Generally, compared with the prior art, the technical scheme of the utility model has the following beneficial effects: the utility model provides a double-transmitting double-receiving hot-plug small-packaged optical module, which adopts a double-transmitting double-receiving design, improves the transmission rate of a single hot-plug small-packaged module by one time, meets the requirements of high density, high rate and high reliability of optical communication of an optical module in the market, and reduces the power consumption and the product cost compared with a single-transmitting single-receiving optical module; in addition, the internal structure of the optical module is simplified through the optical fiber connector, the space of a circuit board is saved, the optical module is more convenient to mount and dismount, the reliability and stability of the module are guaranteed through fixing the connector, the product design is simplified, the space of the circuit board is saved, the power consumption is further reduced, and the product cost is further reduced.
Drawings
Fig. 1 is a schematic diagram of a structural framework and a photoelectric conversion principle of a dual-transmission dual-reception hot-plug small package optical module according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a dual-transmission dual-reception hot plug small package optical module according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a multi-fiber connector of a dual-transmission dual-reception hot-plug small-package optical module according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In order to meet the requirements of network capacity improvement and communication rate increase, an embodiment of the present invention provides a dual-transmission dual-reception hot-plug small-package optical module, as shown in fig. 1, which mainly includes a housing and a module main body disposed in the housing, where the module main body mainly includes a light emitting component, a light receiving component, a functional circuit, and a multi-core optical fiber connector, that is, the light emitting component, the light receiving component, the functional circuit, and the multi-core optical fiber connector are all disposed inside the housing. Wherein:
the light emitting component is used for converting an input electric signal into an output optical signal and comprises a first laser component, a second laser component, a first laser emission driving circuit and a second laser emission driving circuit; the first laser assembly is connected with the first laser emission driving circuit, and the second laser assembly is connected with the second laser emission driving circuit. In alternative embodiments, the first laser component and the second laser component may employ a FBG (Fiber Bragg Grating) laser, a DFB (distributed Feedback) laser, or an FP (Fabry-perot) laser, which is not limited herein.
With continued reference to fig. 1, the input electrical signals include a first input electrical signal and a second input electrical signal, and the output optical signals include a first output optical signal and a second output optical signal. In the optical transmission assembly, the first input electrical signal can be converted into the first output optical signal through the cooperation of the first laser emission driving circuit and the first laser assembly; the second input electrical signal may be converted to the second output optical signal by cooperation of the second laser emission driving circuit and the second laser assembly. Therefore, the light emitting assembly can convert the two paths of input electric signals into the two corresponding paths of output optical signals.
The optical receiving component is used for converting an input optical signal into an output electrical signal and comprises a first detector component, a second detector component, a first transimpedance amplifier circuit and a second transimpedance amplifier circuit; the first detector component is connected with the transimpedance amplifier circuit, and the second detector component is connected with the transimpedance amplifier circuit.
With continued reference to fig. 1, the input optical signals include a first input optical signal and a second input optical signal, and the output electrical signals include a first output electrical signal and a second output electrical signal. In the light receiving assembly, the first input optical signal can be converted into a first output electrical signal through the cooperation of the first detector assembly and the first transimpedance amplifier circuit; through the cooperation of the second detector assembly and the second transimpedance amplifier circuit, the second input optical signal can be converted into a second output electrical signal. Therefore, the light receiving assembly can convert the two input optical signals into two corresponding output electrical signals.
The function circuit is respectively connected with the light emitting component and the light receiving component, mainly realizes control and monitoring functions, and is specifically used for controlling and monitoring the light emitting component and the light receiving component. With reference to fig. 2, the functional circuit mainly uses a single chip to control and monitor the light emitting module and the light receiving module, and can communicate with an external circuit through a gold finger, and specifically, can use a two-wire serial communication interface as a slave, and report the obtained monitoring information to the host; wherein the monitoring information includes one or more of an operating temperature, an operating voltage, an emission bias current, an emission optical power, and a reception optical power.
The multi-core optical fiber connector is respectively connected to the optical transmitting assembly and the optical receiving assembly, and is mainly used as an optical signal transmission channel for transmitting the output optical signal and the input optical signal, specifically including transmission of a first output optical signal, a second output optical signal, a first input optical signal, and a second input optical signal, as shown in fig. 1. Therefore, the multi-core fiber optic connector requires the use of at least a 4-core splice. Accordingly, the multi-fiber optical connector comprises at least two input ports and at least two output ports, wherein:
a first input port of the multi-fiber connector is connected to the first laser assembly for transmitting the first output optical signal from the inside to the outside; a second input port of the multi-fiber connector is connected to the second laser assembly for transmitting the second output optical signal from the inside to the outside; the first output port of the multi-core optical fiber connector is connected with the first detector assembly so as to transmit the first input optical signal from the outside to the inside; the second output port of the multi-fiber connector is connected to the second detector assembly for transmitting the second input optical signal from the outside to the inside. Therefore, it can also be said that the multi-core optical fiber connector is mainly used for connecting an internal optical signal with an external optical signal; here, the inside and the outside are both referred to the optical module.
Continuing to refer to fig. 3, multicore fiber connector includes the specially designed internal adapter and outside adapter, internal adapter can be fixed on the circuit board, internal adapter with through the fiber connection of certain length between the outside adapter, make light signal (including inside light signal and outside light signal) can be in internal adapter with transmit between the outside adapter. In an optional embodiment, a clamping groove is formed in the housing, so that an external adapter of the multi-core optical fiber connector can be fixed, and the reliability of optical signal transmission is ensured. In addition, the external adapter is also connected with the optical fiber connector, so that the connection between the optical module and the optical cable is realized.
The optical module provided by the embodiment of the utility model adopts a double-transmitting and double-receiving design, the transmission rate of a single hot-plugging small encapsulation module is doubled, the requirements of high density, high speed and high reliability of optical module optical communication in the market are met, and compared with the single-transmitting and single-receiving optical module, the power consumption is reduced, and the product cost is reduced; in addition, the internal structure of the optical module is simplified through the optical fiber connector, the space of a circuit board is saved, the optical module is more convenient to mount and dismount, the reliability and stability of the module are guaranteed through fixing the connector, the product design is simplified, the space of the circuit board is saved, the power consumption is further reduced, and the product cost is further reduced.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121124471.5U CN215575802U (en) | 2021-05-24 | 2021-05-24 | Double-transmitting double-receiving hot plug small-package optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121124471.5U CN215575802U (en) | 2021-05-24 | 2021-05-24 | Double-transmitting double-receiving hot plug small-package optical module |
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| Publication Number | Publication Date |
|---|---|
| CN215575802U true CN215575802U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121124471.5U Active CN215575802U (en) | 2021-05-24 | 2021-05-24 | Double-transmitting double-receiving hot plug small-package optical module |
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| CN (1) | CN215575802U (en) |
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2021
- 2021-05-24 CN CN202121124471.5U patent/CN215575802U/en active Active
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