FR2828593B1 - Amplificateur de raman - Google Patents

Amplificateur de raman

Info

Publication number
FR2828593B1
FR2828593B1 FR0205354A FR0205354A FR2828593B1 FR 2828593 B1 FR2828593 B1 FR 2828593B1 FR 0205354 A FR0205354 A FR 0205354A FR 0205354 A FR0205354 A FR 0205354A FR 2828593 B1 FR2828593 B1 FR 2828593B1
Authority
FR
France
Prior art keywords
raman amplifier
raman
amplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
FR0205354A
Other languages
English (en)
Other versions
FR2828593A1 (fr
Inventor
Toshiki Tanaka
Takao Naito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of FR2828593A1 publication Critical patent/FR2828593A1/fr
Application granted granted Critical
Publication of FR2828593B1 publication Critical patent/FR2828593B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/1001—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by controlling the optical 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
    • H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
    • H01S3/302—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in an optical 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
    • H01S3/094003—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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
    • 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
    • H01S3/1053—Control by pressure or deformation
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/02—Structural details or components not essential to laser action
    • H01S5/022—Mountings; Housings
    • H01S5/0225—Out-coupling of light
    • H01S5/02251—Out-coupling of light using optical fibres
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers
    • H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers
    • H01S5/146—External cavity lasers using a fiber as external cavity

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
FR0205354A 2001-08-10 2002-04-29 Amplificateur de raman Expired - Lifetime FR2828593B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001244798A JP3808734B2 (ja) 2001-08-10 2001-08-10 ラマン増幅器

Publications (2)

Publication Number Publication Date
FR2828593A1 FR2828593A1 (fr) 2003-02-14
FR2828593B1 true FR2828593B1 (fr) 2005-05-27

Family

ID=19074675

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0205354A Expired - Lifetime FR2828593B1 (fr) 2001-08-10 2002-04-29 Amplificateur de raman

Country Status (3)

Country Link
US (1) US6954304B2 (fr)
JP (1) JP3808734B2 (fr)
FR (1) FR2828593B1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6992814B2 (en) * 2002-06-17 2006-01-31 Avanex Corporation Wide-band raman amplifiers
JP2004086143A (ja) * 2002-06-28 2004-03-18 Sumitomo Electric Ind Ltd 光伝送システム
JP4176527B2 (ja) 2003-03-31 2008-11-05 富士通株式会社 ラマン増幅器およびそれを用いた光伝送システム
US7016102B2 (en) * 2004-03-05 2006-03-21 Agilent Technologies, Inc. Apparatus and method for shifting the frequency of an optical signal by two-stage Raman scattering
GB0620141D0 (en) * 2006-10-11 2006-11-22 Renishaw Plc Spectroscopy system
JP5176598B2 (ja) * 2008-02-29 2013-04-03 富士通株式会社 光分岐挿入装置および光伝送装置
WO2010084796A1 (fr) * 2009-01-23 2010-07-29 株式会社フジクラ Multiplexeur optique et laser à fibre
US20120002283A1 (en) * 2010-06-30 2012-01-05 Chongjin Xie Method and apparatus for raman co-pumps
JP7469647B2 (ja) * 2020-06-12 2024-04-17 富士通株式会社 光増幅装置及び光増幅方法
US11697985B2 (en) 2020-12-03 2023-07-11 Caterpillar Inc. Automated hydraulic fracturing operation

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0854511A (ja) 1994-08-12 1996-02-27 Showa Electric Wire & Cable Co Ltd 光増幅器
JPH11266047A (ja) 1998-03-17 1999-09-28 Fujitsu Ltd 光増幅器及び該光増幅器を備えたシステム
JP2001117126A (ja) 1999-08-06 2001-04-27 Nippon Telegr & Teleph Corp <Ntt> ラマン増幅器及びそれを用いた光ファイバ通信システム
US6445492B1 (en) * 2000-03-03 2002-09-03 Lucent Technologies Inc. Reduction of four-wave mixing in raman amplified optical transmission systems
JP2002040495A (ja) * 2000-07-21 2002-02-06 Sumitomo Electric Ind Ltd ラマン増幅器
US6424455B1 (en) * 2000-10-03 2002-07-23 Tycom (Us) Inc. Wide bandwidth fiber raman amplifier
US6452716B1 (en) * 2000-10-05 2002-09-17 Nortel Networks Limited Amplitude modulation of a pump laser signal in a distributed raman amplifier
JP2003035919A (ja) * 2000-11-07 2003-02-07 Furukawa Electric Co Ltd:The 光増幅装置および光伝送システム
DE10056327A1 (de) * 2000-11-14 2002-05-29 Siemens Ag Verfahren zur Verstärkung von optischen Signalen
DE10056328A1 (de) * 2000-11-14 2002-05-29 Siemens Ag Raman-Verstärker mit mehreren Pumpquellen
DE10057659B4 (de) * 2000-11-21 2004-01-15 Siemens Ag Optisches Übertragungssystem mit jeweils mehrere Pumpquellen aufweisenden kaskadierte Raman-Verstärkern
GB0031508D0 (en) * 2000-12-22 2001-02-07 Cit Alcatel Broadband raman amplifier
US6433921B1 (en) * 2001-01-12 2002-08-13 Onetta, Inc. Multiwavelength pumps for raman amplifier systems
US6417958B1 (en) * 2001-01-24 2002-07-09 Lucent Technologies Inc. WDM optical communication system using co-propagating Raman amplification
DE10111491A1 (de) * 2001-03-09 2002-09-19 Siemens Ag Pumpquelle mit jeweils mehreren Pumplasern zur Raman-Verstärkung eines WDM-Signals mit minimierter Vierwellenmischung
DE10112806C1 (de) * 2001-03-16 2002-10-10 Siemens Ag Pumpquelle mit erhöhter Pumpleistung zur optischen breitbandigen Raman-Verstärkung
US6687043B2 (en) * 2001-03-19 2004-02-03 Metrophotonics Inc. Multi-frequency Raman amplifier pump source
US20030002138A1 (en) * 2001-06-27 2003-01-02 International Business Machines Corporation Gain stabilized raman effect optical amplifiers for coarse and dense wavelength multiplexers
US6456426B1 (en) * 2001-06-28 2002-09-24 Onetta, Inc. Raman amplifiers with modulated pumps
US6525870B1 (en) * 2001-07-26 2003-02-25 Ciena Corporation Method and system for controlling Raman gain flatness sensitivity to pump laser wavelength variation
US6597495B2 (en) * 2001-08-27 2003-07-22 Ceyba Corp. Four wave mixing reduction in raman amplifiers
US6657776B2 (en) * 2001-11-21 2003-12-02 Lucent Technologies Inc. Pump source including polarization scrambling in Raman amplified optical WDM systems
US6914716B2 (en) * 2001-11-21 2005-07-05 Lucent Technologies Inc. Modulated pump source for fiber Raman amplifier
US6731428B2 (en) * 2001-11-21 2004-05-04 Lucent Technologies Inc. Pump monitoring and control in a fiber Raman amplifier

Also Published As

Publication number Publication date
JP2003057691A (ja) 2003-02-26
JP3808734B2 (ja) 2006-08-16
FR2828593A1 (fr) 2003-02-14
US20030030890A1 (en) 2003-02-13
US6954304B2 (en) 2005-10-11

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