DE69229893D1 - Optische Verstärker - Google Patents
Optische VerstärkerInfo
- Publication number
- DE69229893D1 DE69229893D1 DE69229893T DE69229893T DE69229893D1 DE 69229893 D1 DE69229893 D1 DE 69229893D1 DE 69229893 T DE69229893 T DE 69229893T DE 69229893 T DE69229893 T DE 69229893T DE 69229893 D1 DE69229893 D1 DE 69229893D1
- Authority
- DE
- Germany
- Prior art keywords
- optical amplifiers
- amplifiers
- optical
- 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
- H04B10/29—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
- H04B10/2931—Signal power control using AGC
-
- 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
- H01S3/10—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
-
- 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
- H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
-
- 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
- H01S3/10015—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by monitoring or controlling, e.g. attenuating, the input signal
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14379291 | 1991-05-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69229893D1 true DE69229893D1 (de) | 1999-10-07 |
DE69229893T2 DE69229893T2 (de) | 2000-05-31 |
Family
ID=15347099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69229893T Expired - Lifetime DE69229893T2 (de) | 1991-05-20 | 1992-05-20 | Optische Verstärker |
Country Status (5)
Country | Link |
---|---|
US (1) | US5589975A (de) |
EP (1) | EP0515179B1 (de) |
CA (1) | CA2068975C (de) |
DE (1) | DE69229893T2 (de) |
ES (1) | ES2136611T3 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4215338A1 (de) * | 1992-05-09 | 1993-11-11 | Sel Alcatel Ag | Optisches Nachrichtenübertragungssystem mit Überwachungsvorrichtung zur Vermeidung von Riesenimpulsen |
GB2280560B (en) * | 1993-07-31 | 1997-09-03 | Northern Telecom Ltd | Communications system |
US6064514A (en) * | 1995-10-30 | 2000-05-16 | Nec Corporation | Optical surge preventing method and system for use with or in a rare earth doped fiber circuit |
JP3042419B2 (ja) * | 1996-10-02 | 2000-05-15 | 日本電気株式会社 | 光直接増幅器とその制御方法 |
JPH10209970A (ja) * | 1997-01-21 | 1998-08-07 | Fujitsu Ltd | サージ出力を低減した光増幅器 |
JPH11205227A (ja) * | 1998-01-14 | 1999-07-30 | Nec Corp | 光ファイバアンプサージ保護回路 |
WO2002021204A1 (en) * | 2000-09-07 | 2002-03-14 | Fujitsu Limited | Optical amplifier using raman amplification |
JP2009065090A (ja) * | 2007-09-10 | 2009-03-26 | Yokogawa Electric Corp | 光増幅装置及び光通信装置 |
CN102136870B (zh) * | 2010-01-22 | 2014-02-26 | 华为技术有限公司 | 一种突发光信号的放大方法、装置和系统 |
US8988768B2 (en) | 2011-01-19 | 2015-03-24 | Nikon Corporation | Laser device |
JP2016025393A (ja) * | 2014-07-16 | 2016-02-08 | 富士通株式会社 | 光伝送装置及び光伝送方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2248372C2 (de) * | 1972-10-03 | 1984-09-20 | Siemens AG, 1000 Berlin und 8000 München | Zwischenverstärker für ein optisches Nachrichtenübertragungssystem |
GB1511098A (en) * | 1975-10-21 | 1978-05-17 | Hughes J | Optical transponder |
JPS56162554A (en) * | 1980-05-20 | 1981-12-14 | Nippon Telegr & Teleph Corp <Ntt> | Optical amplifying repeater |
DE3201763A1 (de) * | 1982-01-21 | 1983-09-08 | Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Optische uebertragungsstrecke |
JPS60229433A (ja) * | 1984-04-26 | 1985-11-14 | Nec Corp | 双方向光通信方式 |
US5017885A (en) * | 1984-05-10 | 1991-05-21 | At&T Bell Laboratories | Optical amplifier with reduced nonlinearity |
JPS61201222A (ja) * | 1985-03-04 | 1986-09-05 | Hitachi Ltd | 光パルス増幅整形装置 |
GB8612956D0 (en) * | 1986-05-28 | 1986-07-02 | British Telecomm | Optical signal regenerator |
JPH01287426A (ja) * | 1988-05-13 | 1989-11-20 | Hamamatsu Photonics Kk | 光信号サンプリング装置 |
JPH0758376B2 (ja) * | 1988-05-26 | 1995-06-21 | 浜松ホトニクス株式会社 | 光波形整形装置 |
US4979234A (en) * | 1988-12-20 | 1990-12-18 | At&T Bell Laboratories | Saturated semiconductor laser amplifier for compensation of optical fibre dispersion |
GB2230912B (en) * | 1989-04-22 | 1993-10-20 | Stc Plc | Optical amplifier gain control |
US5117303A (en) * | 1990-08-23 | 1992-05-26 | At&T Bell Laboratories | Method of operating concatenated optical amplifiers |
IT1247844B (it) * | 1991-03-29 | 1995-01-02 | Pirelli Cavi S P A Dir Proprie | Linea di telecomunicazione a fibre ottiche con amplificatori ottici, dotata di mezzi di protezione in grado di interrompere l'emissione luminosa in tutta la linea in presenza di un'interruzione della fibra ottica e di riattivarla automaticamente al ripristino della sua continuita' |
US5177634A (en) * | 1991-10-25 | 1993-01-05 | Bell Communications Research, Inc. | High gain limiting erbium-doped fiber amplifier with wide dynamic range |
DE4215338A1 (de) * | 1992-05-09 | 1993-11-11 | Sel Alcatel Ag | Optisches Nachrichtenübertragungssystem mit Überwachungsvorrichtung zur Vermeidung von Riesenimpulsen |
-
1992
- 1992-05-19 CA CA002068975A patent/CA2068975C/en not_active Expired - Lifetime
- 1992-05-20 EP EP92304589A patent/EP0515179B1/de not_active Expired - Lifetime
- 1992-05-20 DE DE69229893T patent/DE69229893T2/de not_active Expired - Lifetime
- 1992-05-20 ES ES92304589T patent/ES2136611T3/es not_active Expired - Lifetime
-
1994
- 1994-11-04 US US08/334,444 patent/US5589975A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5589975A (en) | 1996-12-31 |
CA2068975A1 (en) | 1992-11-21 |
EP0515179A3 (en) | 1993-05-05 |
EP0515179A2 (de) | 1992-11-25 |
EP0515179B1 (de) | 1999-09-01 |
ES2136611T3 (es) | 1999-12-01 |
DE69229893T2 (de) | 2000-05-31 |
CA2068975C (en) | 2002-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R071 | Expiry of right |
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