DE69208573T2 - Optische Verstärker mit Pumpredundanz - Google Patents

Optische Verstärker mit Pumpredundanz

Info

Publication number
DE69208573T2
DE69208573T2 DE69208573T DE69208573T DE69208573T2 DE 69208573 T2 DE69208573 T2 DE 69208573T2 DE 69208573 T DE69208573 T DE 69208573T DE 69208573 T DE69208573 T DE 69208573T DE 69208573 T2 DE69208573 T2 DE 69208573T2
Authority
DE
Germany
Prior art keywords
optical amplifiers
pump redundancy
redundancy
pump
amplifiers
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 - Fee Related
Application number
DE69208573T
Other languages
English (en)
Other versions
DE69208573D1 (de
Inventor
Neal Salvatore Bergano
Richard F Druckenmiller
Iii Franklin W Kerfoot
Patrick R Trischitta
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Publication of DE69208573D1 publication Critical patent/DE69208573D1/de
Application granted granted Critical
Publication of DE69208573T2 publication Critical patent/DE69208573T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01S3/09—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
    • H01S3/09—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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
DE69208573T 1991-09-12 1992-09-03 Optische Verstärker mit Pumpredundanz Expired - Fee Related DE69208573T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/758,665 US5173957A (en) 1991-09-12 1991-09-12 Pump redundancy for optical amplifiers

Publications (2)

Publication Number Publication Date
DE69208573D1 DE69208573D1 (de) 1996-04-04
DE69208573T2 true DE69208573T2 (de) 1996-07-11

Family

ID=25052622

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69208573T Expired - Fee Related DE69208573T2 (de) 1991-09-12 1992-09-03 Optische Verstärker mit Pumpredundanz

Country Status (6)

Country Link
US (1) US5173957A (de)
EP (1) EP0532230B1 (de)
JP (1) JP2922732B2 (de)
CA (1) CA2071406C (de)
DE (1) DE69208573T2 (de)
ES (1) ES2083696T3 (de)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5343320A (en) * 1992-08-03 1994-08-30 At&T Bell Laboratories Pump laser control circuit for an optical transmission system
AU3706693A (en) * 1993-04-22 1994-11-03 Sumitomo Electric Industries, Ltd. Optical fiber amplifier
JP3247919B2 (ja) * 1993-07-19 2002-01-21 三菱電機株式会社 光増幅装置
US5406411A (en) * 1993-10-14 1995-04-11 Corning Incorporated Fiber amplifier having efficient pump power utilization
JPH07176813A (ja) * 1993-12-17 1995-07-14 Fujitsu Ltd 光ファイバ増幅器
DE4446524A1 (de) * 1994-12-24 1996-06-27 Sel Alcatel Ag Faseroptischer Verstärker
US5594748A (en) * 1995-08-10 1997-01-14 Telephone Information Systems, Inc. Method and apparatus for predicting semiconductor laser failure
JP3597267B2 (ja) * 1995-09-26 2004-12-02 富士通株式会社 冗長性を有する光中継器
JP3250428B2 (ja) * 1995-09-28 2002-01-28 三菱電機株式会社 光増幅装置
JPH1012954A (ja) * 1996-06-26 1998-01-16 Fujitsu Ltd 光増幅器
US6236777B1 (en) 1997-05-13 2001-05-22 Pirelli Cavi E Sistemi S.P.A. Reliability of an optical communication system and of an optical amplifying system, and a method suitable to this aim
CN100365959C (zh) * 1997-11-28 2008-01-30 西门子公司 光信号的倾斜和功率水平调整的方法
DE69835510T2 (de) * 1998-02-06 2007-08-09 Fujitsu Ltd., Kawasaki Optischer verstärker und verfahren zur steuerung der lichtquellenerregung von einem optischen verstärker
US6229639B1 (en) 1998-07-09 2001-05-08 Cymer, Inc. Multiplexer for laser lithography
JP3605629B2 (ja) * 1998-12-15 2004-12-22 富士通株式会社 光源の冗長切替方法及び該方法による波長多重伝送装置
US6567207B1 (en) * 1999-05-12 2003-05-20 Corvis Corporation Optical transmission systems and optical amplifiers for use therein
US6839163B1 (en) * 1999-09-01 2005-01-04 Avanex Corporation Apparatus and method for making an optical fiber amplifier
US20040130778A1 (en) * 2003-01-06 2004-07-08 Corvis Corporation Optical transmission systems including optical amplifiers and methods of use therein
US6426833B1 (en) 2000-07-28 2002-07-30 Ciena Corporation Optical amplifier configuration including shared pumps
US6724524B1 (en) * 2000-08-18 2004-04-20 Corning Incorporated Gain control in Raman amplifiers
DE10101742A1 (de) * 2001-01-16 2002-07-25 Siemens Ag Pumpquelle mit mehreren geregelten Pumplasern zur optischen breitbandigen Verstärkung eines WDM-Signals
US6901190B1 (en) 2001-01-25 2005-05-31 Tyco Telecommunications (Us) Inc. Fault tolerant optical amplifier configuration using pump feedthrough
US6636345B2 (en) * 2001-02-27 2003-10-21 Corning Incorporated Optical fiber pumping system
US6618195B2 (en) * 2001-04-20 2003-09-09 Dorsal Networks Inc. Pump assembly employing coupled radiation sources for multiple fibers
US20020167719A1 (en) * 2001-04-20 2002-11-14 Bo Pedersen Method of pump wavelength combing for enhanced power dynamic range and redundancy broad band raman optical amplifier system
US6687047B2 (en) 2001-05-29 2004-02-03 Dorsal Networks, Inc. Shared forward pumping in optical communications network
EP1271813B1 (de) * 2001-06-29 2009-12-23 Sumitomo Electric Industries, Ltd. Pumplichtquelleneinheit, Ramanverstärker und optisches Übertragungssystem
US6671429B2 (en) 2001-10-03 2003-12-30 Dorsal Networks, Inc. Balanced coupler for radiation sources
US7120362B2 (en) * 2001-10-03 2006-10-10 Bo Pedersen High power repeaters for Raman amplified, wave division multiplexed optical communication systems
JP4798997B2 (ja) * 2002-08-20 2011-10-19 ファーウェイ マリーン ネットワークス カンパニー リミテッド 単一のポンプ装置から異なる一対のファイバに位置する光ファイバへポンプ・エネルギを分配する方法および装置
US6768833B2 (en) * 2002-09-06 2004-07-27 Corvis Corporation Optical communications systems including a branching unit and associated devices and methods
US20040207912A1 (en) * 2003-04-17 2004-10-21 Nagel Jonathan A. Method and apparatus for distributing pump energy to an optical amplifier array in an asymmetric manner
US20050226622A1 (en) * 2004-04-06 2005-10-13 Kddi Submarine Cable Systems Inc. Underwater repeater employing rare earth element doped fiber amplifier, Raman assist and optical pump source sparing
CA2550369A1 (en) * 2005-06-17 2006-12-17 Virtek Vision International Inc. Multiple head laser projector and method
JP2008306081A (ja) * 2007-06-11 2008-12-18 Miharu Communications Co Ltd Ｍｍｐｌｄを使用した光増幅方法と光増幅器
US8170418B2 (en) * 2008-03-28 2012-05-01 Nortel Networks Limited Protected light source for multiple wavelength division multiplexed passive optical networks (WDM-PONS)
JP2009260372A (ja) * 2009-07-27 2009-11-05 Miharu Communications Co Ltd Ｍｍｐｌｄを使用した光増幅方法と光増幅器
US8284479B2 (en) * 2009-08-18 2012-10-09 Fujitsu Limited Optical amplifier card with pluggable pump laser modules
US8956130B2 (en) * 2009-12-23 2015-02-17 Pentair Flow Technologies, Llc Redundant sump pump system
US9247624B2 (en) * 2013-01-29 2016-01-26 Hewlett Packard Enterprise Development Lp Redundant light supply for silicon photonic chip
WO2017087865A1 (en) * 2015-11-19 2017-05-26 Nlight, Inc. Laser fault tolerance and self-calibaration system
US11025034B2 (en) 2016-08-31 2021-06-01 Nlight, Inc. Laser cooling system
US10574020B2 (en) 2016-12-15 2020-02-25 Nlight, Inc. Fiber laser packaging
EP3766149B1 (de) 2018-03-12 2022-05-11 Nlight, Inc. Faserlaser mit variabel gewickelter optischer faser
WO2020041931A1 (zh) * 2018-08-27 2020-03-05 华为海洋网络有限公司 一种海底网络设备
US11811198B2 (en) * 2019-07-22 2023-11-07 Ii-Vi Delaware, Inc. High power laser array devices and methods

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2747315B2 (ja) * 1989-02-22 1998-05-06 日立電線株式会社 双方向伝送用ガラス導波路増幅器
JPH02272432A (ja) * 1989-04-13 1990-11-07 Nippon Telegr & Teleph Corp <Ntt> 偏波変調装置
CA2019253C (en) * 1989-06-23 1994-01-11 Shinya Inagaki Optical fiber amplifier
US4963832A (en) * 1989-08-08 1990-10-16 At&T Bell Laboratories Erbium-doped fiber amplifier coupling device
US5058974A (en) * 1989-10-06 1991-10-22 At&T Bell Laboratories Distributed amplification for lightwave transmission system
JPH04121716A (ja) * 1990-09-12 1992-04-22 Nec Corp 光増幅中継器
US5088095A (en) * 1991-01-31 1992-02-11 At&T Bell Laboratories Gain stabilized fiber amplifier

Also Published As

Publication number Publication date
EP0532230A1 (de) 1993-03-17
DE69208573D1 (de) 1996-04-04
US5173957A (en) 1992-12-22
JP2922732B2 (ja) 1999-07-26
EP0532230B1 (de) 1996-02-28
ES2083696T3 (es) 1996-04-16
JPH06342174A (ja) 1994-12-13
CA2071406A1 (en) 1993-03-13
CA2071406C (en) 1997-01-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee