DE69231919D1 - Optisches Relaissystem mit Faserverstärkern - Google Patents
Optisches Relaissystem mit FaserverstärkernInfo
- Publication number
- DE69231919D1 DE69231919D1 DE69231919T DE69231919T DE69231919D1 DE 69231919 D1 DE69231919 D1 DE 69231919D1 DE 69231919 T DE69231919 T DE 69231919T DE 69231919 T DE69231919 T DE 69231919T DE 69231919 D1 DE69231919 D1 DE 69231919D1
- Authority
- DE
- Germany
- Prior art keywords
- relay system
- optical relay
- fiber amplifiers
- amplifiers
- fiber
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
-
- 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
-
- 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
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/1301—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers
- H01S3/13013—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers by controlling the optical pumping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/2933—Signal power control considering the whole optical path
- H04B10/2935—Signal power control considering the whole optical path with a cascade of amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser 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
- H01S3/05—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
- H01S3/09408—Pump redundancy
-
- 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
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2383—Parallel arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/003—Devices including multiple stages, e.g., multi-stage optical amplifiers or dispersion compensators
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Plasma & Fusion (AREA)
- Lasers (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29286591A JP3137391B2 (ja) | 1991-11-08 | 1991-11-08 | ファイバ形光増幅器 |
JP3184692A JPH05235442A (ja) | 1992-02-19 | 1992-02-19 | 光増幅器 |
JP8551892A JP3010897B2 (ja) | 1992-04-07 | 1992-04-07 | 光中継装置 |
JP4162786A JP3008673B2 (ja) | 1992-06-22 | 1992-06-22 | 光増幅中継器の監視方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69231919D1 true DE69231919D1 (de) | 2001-08-09 |
DE69231919T2 DE69231919T2 (de) | 2002-04-04 |
Family
ID=27459510
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69231259T Expired - Lifetime DE69231259T2 (de) | 1991-11-08 | 1992-11-04 | Optisches Faserverstärkerrelaissystem |
DE69231919T Expired - Lifetime DE69231919T2 (de) | 1991-11-08 | 1992-11-04 | Optisches Relaissystem mit Faserverstärkern |
DE69228393T Expired - Fee Related DE69228393T2 (de) | 1991-11-08 | 1992-11-04 | Faseroptischer Verstärker |
DE69220648T Expired - Fee Related DE69220648T2 (de) | 1991-11-08 | 1992-11-04 | Faseroptischer Verstärker |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69231259T Expired - Lifetime DE69231259T2 (de) | 1991-11-08 | 1992-11-04 | Optisches Faserverstärkerrelaissystem |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69228393T Expired - Fee Related DE69228393T2 (de) | 1991-11-08 | 1992-11-04 | Faseroptischer Verstärker |
DE69220648T Expired - Fee Related DE69220648T2 (de) | 1991-11-08 | 1992-11-04 | Faseroptischer Verstärker |
Country Status (3)
Country | Link |
---|---|
US (1) | US5367587A (de) |
EP (5) | EP0712217A3 (de) |
DE (4) | DE69231259T2 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9217706D0 (en) * | 1992-08-20 | 1992-09-30 | Bt & D Technologies Ltd | Multistage fibre amplifier |
JPH06318754A (ja) * | 1993-05-10 | 1994-11-15 | Matsushita Electric Ind Co Ltd | 光ファイバ増幅器および光信号伝送システム |
JP3247919B2 (ja) * | 1993-07-19 | 2002-01-21 | 三菱電機株式会社 | 光増幅装置 |
GB2280560B (en) * | 1993-07-31 | 1997-09-03 | Northern Telecom Ltd | Communications system |
JPH07176813A (ja) * | 1993-12-17 | 1995-07-14 | Fujitsu Ltd | 光ファイバ増幅器 |
DE4409444A1 (de) * | 1994-03-19 | 1995-09-21 | Sel Alcatel Ag | Optisch gepumpter bistabiler Laser |
JP3250428B2 (ja) * | 1995-09-28 | 2002-01-28 | 三菱電機株式会社 | 光増幅装置 |
US5808770A (en) * | 1995-12-29 | 1998-09-15 | Lucent Technologies, Inc. | Method and apparatus for using on-off-keying using laser relaxation oscillation |
JP3730299B2 (ja) * | 1996-02-07 | 2005-12-21 | 富士通株式会社 | 光等化増幅器および光等化増幅方法 |
CA2172873C (en) * | 1996-03-28 | 2002-03-12 | Kim Byron Roberts | Method of determining optical amplifier failures |
GB2354367B (en) * | 1996-06-26 | 2001-04-25 | Fujitsu Ltd | Method of and apparatus for controlling an optical amplifier |
JPH1012954A (ja) | 1996-06-26 | 1998-01-16 | Fujitsu Ltd | 光増幅器 |
JP3652804B2 (ja) * | 1996-09-06 | 2005-05-25 | 富士通株式会社 | 光伝送装置 |
JP3327148B2 (ja) * | 1996-11-21 | 2002-09-24 | ケイディーディーアイ株式会社 | 光増幅器及びレーザ光発生装置 |
US6211985B1 (en) * | 1997-08-08 | 2001-04-03 | Tyco Submarine Systems Ltd. | Remote monitoring of an optical transmission system using line monitoring signals |
US6327077B1 (en) * | 1998-09-29 | 2001-12-04 | Nec Corporation | Optical direct amplifier device and bidirectionally pumped optical direct amplifier device |
JP2000150992A (ja) * | 1998-11-11 | 2000-05-30 | Nec Corp | 光増幅器 |
JP2001356377A (ja) * | 2000-06-16 | 2001-12-26 | Kdd Submarine Cable Systems Inc | ポンプ光発生装置及びファイバラマン増幅器 |
US20030011878A1 (en) * | 2001-07-11 | 2003-01-16 | Maas Steven J. | Remote pumping of optical amplifier system and method |
US20030081307A1 (en) * | 2001-09-28 | 2003-05-01 | Fludger Christopher R. | Raman amplification |
US7245423B1 (en) | 2006-07-24 | 2007-07-17 | Itt Manufacturing Enterprises, Inc. | Reducing noise in a fiber amplifier using a cleaning optical signal |
WO2009141449A2 (de) * | 2008-05-21 | 2009-11-26 | Silicon Line Gmbh | Schaltungsanordnung und verfahren zum ansteuern lichtemittierender bauelemente |
JP5614327B2 (ja) * | 2011-02-24 | 2014-10-29 | 日本電気株式会社 | 光増幅器制御装置 |
EP3439201B1 (de) | 2016-03-30 | 2022-03-16 | Nec Corporation | Signal-loopback-schaltung und signal-loopback-verfahren |
CN112313844A (zh) * | 2018-06-28 | 2021-02-02 | 日本电气株式会社 | 光源设备和光学放大器 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3167165D1 (en) * | 1980-06-16 | 1984-12-20 | Post Office | Digital transmission systems |
JPS59101629A (ja) * | 1982-12-01 | 1984-06-12 | Nec Corp | ファイバ内光増幅装置 |
JPS59200486A (ja) * | 1983-04-27 | 1984-11-13 | Nippon Telegr & Teleph Corp <Ntt> | 光フアイバによる光増幅装置 |
JPS6035344A (ja) * | 1983-08-08 | 1985-02-23 | Hitachi Tobu Semiconductor Ltd | 発光装置およびこれを用いた光学的信号処理装置 |
US4554510A (en) * | 1983-09-12 | 1985-11-19 | The Board Of Trustees Of Leland Stanford Junior University | Switching fiber optic amplifier |
JPS61133688A (ja) * | 1984-12-03 | 1986-06-20 | Fujitsu Ltd | 半導体レ−ザ波長制御装置 |
JPH0738474B2 (ja) | 1989-03-15 | 1995-04-26 | 国際電信電話株式会社 | ポンピング光用光源の冗長方式 |
US5005937A (en) * | 1989-04-14 | 1991-04-09 | Nippon Telegraph And Telephone Corporation | Optical branching equipment and optical network using the same |
CA2019253C (en) * | 1989-06-23 | 1994-01-11 | Shinya Inagaki | Optical fiber amplifier |
JP3137632B2 (ja) * | 1989-08-31 | 2001-02-26 | 富士通株式会社 | 光ファイバ増幅器を備えた光通信方式 |
US5058974A (en) * | 1989-10-06 | 1991-10-22 | At&T Bell Laboratories | Distributed amplification for lightwave transmission system |
JPH03127886A (ja) * | 1989-10-13 | 1991-05-30 | Mitsubishi Cable Ind Ltd | 光増幅器 |
JPH03215982A (ja) * | 1990-01-19 | 1991-09-20 | Mitsubishi Electric Corp | ファイバ形光増幅器 |
JP2951985B2 (ja) | 1990-01-19 | 1999-09-20 | 日本電信電話株式会社 | 光中継器の監視信号転送装置 |
DE4005867A1 (de) * | 1990-02-24 | 1991-08-29 | Standard Elektrik Lorenz Ag | Faseroptischer verstaerker |
US5015054A (en) * | 1990-02-26 | 1991-05-14 | The United States Of America As Represented By The Department Of Energy | Apparatus and method for increasing the bandwidth of a laser beam |
JPH0834454B2 (ja) * | 1990-03-01 | 1996-03-29 | 国際電信電話株式会社 | 光中継器の監視方式 |
CA2037350C (en) * | 1990-03-02 | 1994-11-08 | Kenichi Abe | Optical coupler |
DE4006867A1 (de) * | 1990-03-05 | 1991-09-12 | Reutlinger & Soehne Gmbh U Co | Vorrichtung zum eindrehen eines wuchtkoerpers in eine bearbeitungsposition |
US5229876A (en) * | 1990-03-26 | 1993-07-20 | At&T Bell Laboratories | Telemetry for optical fiber amplifier repeater |
US5115338A (en) * | 1990-05-30 | 1992-05-19 | At&T Bell Laboratories | Multi-stage optical amplifier |
US5216728A (en) * | 1991-06-14 | 1993-06-01 | Corning Incorporated | Optical fiber amplifier with filter |
US5187759A (en) * | 1991-11-07 | 1993-02-16 | At&T Bell Laboratories | High gain multi-mode optical amplifier |
-
1992
- 1992-11-04 EP EP95120727A patent/EP0712217A3/de not_active Withdrawn
- 1992-11-04 DE DE69231259T patent/DE69231259T2/de not_active Expired - Lifetime
- 1992-11-04 DE DE69231919T patent/DE69231919T2/de not_active Expired - Lifetime
- 1992-11-04 DE DE69228393T patent/DE69228393T2/de not_active Expired - Fee Related
- 1992-11-04 EP EP96118886A patent/EP0768766B1/de not_active Expired - Lifetime
- 1992-11-04 EP EP92118891A patent/EP0541061B1/de not_active Expired - Lifetime
- 1992-11-04 DE DE69220648T patent/DE69220648T2/de not_active Expired - Fee Related
- 1992-11-04 EP EP94116464A patent/EP0652613B1/de not_active Expired - Lifetime
- 1992-11-04 EP EP97101954A patent/EP0778682B1/de not_active Expired - Lifetime
-
1994
- 1994-02-09 US US08/193,721 patent/US5367587A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69220648T2 (de) | 1997-12-18 |
EP0652613B1 (de) | 1999-02-03 |
DE69228393T2 (de) | 1999-06-17 |
DE69231259D1 (de) | 2000-08-17 |
DE69228393D1 (de) | 1999-03-18 |
EP0768766A2 (de) | 1997-04-16 |
EP0541061B1 (de) | 1997-07-02 |
DE69231919T2 (de) | 2002-04-04 |
EP0712217A2 (de) | 1996-05-15 |
EP0768766A3 (de) | 1998-01-21 |
EP0652613A3 (de) | 1995-08-16 |
EP0541061A2 (de) | 1993-05-12 |
DE69220648D1 (de) | 1997-08-07 |
EP0768766B1 (de) | 2001-07-04 |
EP0652613A2 (de) | 1995-05-10 |
DE69231259T2 (de) | 2001-01-04 |
US5367587A (en) | 1994-11-22 |
EP0541061A3 (de) | 1994-01-12 |
EP0778682A2 (de) | 1997-06-11 |
EP0778682A3 (de) | 1997-10-22 |
EP0712217A3 (de) | 1996-08-07 |
EP0778682B1 (de) | 2000-07-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) |