DE69022129T2 - Lichtverstärker mit optischer Faser. - Google Patents

Lichtverstärker mit optischer Faser.

Info

Publication number
DE69022129T2
DE69022129T2 DE69022129T DE69022129T DE69022129T2 DE 69022129 T2 DE69022129 T2 DE 69022129T2 DE 69022129 T DE69022129 T DE 69022129T DE 69022129 T DE69022129 T DE 69022129T DE 69022129 T2 DE69022129 T2 DE 69022129T2
Authority
DE
Germany
Prior art keywords
optical fiber
light amplifier
amplifier
light
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 - Fee Related
Application number
DE69022129T
Other languages
English (en)
Other versions
DE69022129D1 (de
Inventor
Shinya Inagaki
Masayoshi Shigihara
Sakae Yoshizawa
Kazuya Sasaki
Keiko Takeda
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26486447&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69022129(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP1159736A external-priority patent/JPH0325985A/ja
Priority claimed from JP1182629A external-priority patent/JPH0348472A/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69022129D1 publication Critical patent/DE69022129D1/de
Publication of DE69022129T2 publication Critical patent/DE69022129T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
    • G02B6/2835—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals formed or shaped by thermal treatment, e.g. couplers
    • 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
DE69022129T 1989-06-23 1990-06-21 Lichtverstärker mit optischer Faser. Expired - Fee Related DE69022129T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1159736A JPH0325985A (ja) 1989-06-23 1989-06-23 光ファイバ増幅器
JP1182629A JPH0348472A (ja) 1989-07-17 1989-07-17 光ファイバ増幅器

Publications (2)

Publication Number Publication Date
DE69022129D1 DE69022129D1 (de) 1995-10-12
DE69022129T2 true DE69022129T2 (de) 1996-03-21

Family

ID=26486447

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022129T Expired - Fee Related DE69022129T2 (de) 1989-06-23 1990-06-21 Lichtverstärker mit optischer Faser.

Country Status (4)

Country Link
US (1) US5136420A (de)
EP (1) EP0404152B1 (de)
CA (1) CA2019253C (de)
DE (1) DE69022129T2 (de)

Families Citing this family (48)

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US5179603A (en) * 1991-03-18 1993-01-12 Corning Incorporated Optical fiber amplifier and coupler
FR2675592B1 (fr) * 1991-04-22 1993-07-16 Alcatel Nv Amplificateur optique dans le domaine spectral 1,26 a 1,34 mum.
DK168180B1 (da) * 1991-07-19 1994-02-21 Lycom As Fremgangsmåde til at forstærke et optisk signal, optisk forstærker til udøvelse af fremgangsmåden, og anvendelse af en sådan optisk forstærker som lyskilde
US5173957A (en) * 1991-09-12 1992-12-22 At&T Bell Laboratories Pump redundancy for optical amplifiers
EP0535590B1 (de) * 1991-09-30 1998-02-04 Nec Corporation Zweiwegzwischenverstärker mit optischer Verstärkung
EP0768766B1 (de) * 1991-11-08 2001-07-04 Mitsubishi Denki Kabushiki Kaisha Optisches Relaissystem mit Faserverstärkern
WO1993018561A1 (en) * 1992-03-13 1993-09-16 Raychem Corporation Ring laser pumped optical amplifier
US5253104A (en) * 1992-09-15 1993-10-12 At&T Bell Laboratories Balanced optical amplifier
JP3247919B2 (ja) * 1993-07-19 2002-01-21 三菱電機株式会社 光増幅装置
US5408356A (en) * 1993-08-02 1995-04-18 The United States Of America As Represented By The United States Department Of Energy Fiber optic signal amplifier using thermoelectric power generation
US5448586A (en) * 1993-09-20 1995-09-05 At&T Corp. Pumping arrangements for arrays of planar optical devices
US5430572A (en) * 1993-09-30 1995-07-04 At&T Corp. High power, high gain, low noise, two-stage optical amplifier
JP3012760B2 (ja) * 1993-10-25 2000-02-28 三菱電機株式会社 光増幅器及び分配システム及びローカル・エリア・ネットワーク及び利得制御方法
US5394265A (en) * 1993-10-25 1995-02-28 At&T Corp. In-line two-stage erbium doped fiber amplifier system with in-band telemetry channel
US5396506A (en) * 1993-12-09 1995-03-07 United Technologies Corporation Coupled multiple output fiber laser
JP3423761B2 (ja) * 1994-03-02 2003-07-07 東北パイオニア株式会社 光波長変換装置
FR2721158B1 (fr) * 1994-06-14 1996-07-12 Alcatel Submarcom Système de transmission sur une ligne à fibre optique sans répéteur, avec amplifications distante et locale.
EP0729207A3 (de) * 1995-02-24 1997-10-15 At & T Corp Faseroptischer Verstärker mit optischem Zirkulator
DE69637562D1 (de) 1995-03-20 2008-07-24 Fujitsu Ltd Verfahren und Vorrichtung zur optischen Signalverarbeitung
JPH10157199A (ja) * 1996-11-27 1998-06-16 Dainippon Screen Mfg Co Ltd 画像記録装置
US6477295B1 (en) 1997-01-16 2002-11-05 Jds Uniphase Corporation Pump coupling of double clad fibers
US5768012A (en) * 1997-03-07 1998-06-16 Sdl, Inc. Apparatus and method for the high-power pumping of fiber optic amplifiers
JP3597999B2 (ja) 1997-12-26 2004-12-08 京セラ株式会社 光ファイバカップラとその製造方法及びそれを用いた光増幅器
JPH11275021A (ja) * 1998-03-20 1999-10-08 Fujitsu Ltd 光増幅装置
JPH11307844A (ja) * 1998-04-27 1999-11-05 Fujitsu Ltd 能動型光ファイバ及び光ファイバ増幅器
JP4179662B2 (ja) 1998-04-27 2008-11-12 富士通株式会社 光増幅器及び能動型光ファイバ
US6122413A (en) * 1998-10-20 2000-09-19 Optigain, Inc. Fiber optic transmitter
JP4237871B2 (ja) * 1999-05-27 2009-03-11 京セラ株式会社 光ファイバカップラとその製造方法及びこれを用いた光増幅器
KR100326119B1 (ko) 1999-06-23 2002-03-07 윤종용 씨드-빔을 이용한 엘-밴드 광섬유 증폭기
KR100334809B1 (ko) 1999-07-21 2002-05-02 윤종용 씨드-빔을 이용한 광대역 광원
US6501782B1 (en) 1999-10-25 2002-12-31 Aculight Corporation Compact laser apparatus
US6456756B1 (en) 1999-10-25 2002-09-24 Aculight Corporation Fiber raman amplifier pumped by an incoherently beam combined diode laser
US6538817B1 (en) 1999-10-25 2003-03-25 Aculight Corporation Method and apparatus for optical coherence tomography with a multispectral laser source
US6529542B1 (en) 2000-04-04 2003-03-04 Aculight Corporation Incoherent beam combined optical system utilizing a lens array
US20020191926A1 (en) 2000-11-27 2002-12-19 Renyuan Gao High gain rare earth doped phosphate glass optical amplification fibers
US6724528B2 (en) 2001-02-27 2004-04-20 The United States Of America As Represented By The Secretary Of The Navy Polarization-maintaining optical fiber amplifier employing externally applied stress-induced birefringence
EP1255139A1 (de) * 2001-05-03 2002-11-06 Corning Incorporated Verfahren und Apparat zum Spleissen von Glasfasern
WO2003044569A2 (en) * 2001-11-19 2003-05-30 Photon-X, Inc. L band optical amplifier
US6690507B2 (en) 2002-01-30 2004-02-10 Corning Incorporated Double-pumped raman amplifier
US7113328B2 (en) * 2002-03-11 2006-09-26 Telefonaktiebolaget Lm Ericsson (Publ) Dual-wavelength pumped thulium-doped optical fiber amplifier
JP2003298527A (ja) * 2002-04-02 2003-10-17 Fujitsu Ltd ラマン増幅を用いた光ファイバ伝送のための方法及び装置
US7046432B2 (en) * 2003-02-11 2006-05-16 Coherent, Inc. Optical fiber coupling arrangement
US7876497B2 (en) * 2008-05-09 2011-01-25 Institut National D'optique Multi-stage long-band optical amplifier with ASE re-use
JP5512348B2 (ja) * 2010-03-29 2014-06-04 株式会社フジクラ 光学部品付き増幅用光ファイバ、及び、これを用いたファイバレーザ装置
US8578739B2 (en) * 2010-10-04 2013-11-12 National Applied Research Laboratories Shorter wavelength photo-annealing apparatus for rare-earth-doped fiber and its optical assemblies under irradiation
US8903211B2 (en) * 2011-03-16 2014-12-02 Ofs Fitel, Llc Pump-combining systems and techniques for multicore fiber transmissions
JP6998754B2 (ja) 2017-12-15 2022-01-18 古河電気工業株式会社 光結合器及び光増幅器
WO2020250305A1 (ja) 2019-06-11 2020-12-17 日本電信電話株式会社 光通信システム及び光通信方法

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US4132955A (en) * 1974-08-01 1979-01-02 Helen Hughes System for amplifying laser beams
US4225826A (en) * 1978-02-03 1980-09-30 The University Of Rochester Laser apparatus
US5048026A (en) * 1983-09-30 1991-09-10 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
US4938556A (en) * 1983-11-25 1990-07-03 The Board Of Trustees Of The Leland Stanford Junior University Superfluorescent broadband fiber laser source
US4637025A (en) * 1984-10-22 1987-01-13 Polaroid Corporation Super radiant light source
FR2573547B1 (fr) * 1984-11-16 1987-04-10 Thomson Csf Source optique monomode et dispositif amplificateur optique accordables dans le proche infra-rouge et l'application aux dispositifs amplificateurs selectifs et de regeneration
US4794598A (en) * 1986-07-18 1988-12-27 The Board Of Trustees Of The Leland Stanford Junior University Synchronously pumped ring fiber Raman laser
GB8512980D0 (en) * 1985-05-22 1985-06-26 Pa Consulting Services Fibre optic transmissions systems
US4778238A (en) * 1985-08-01 1988-10-18 Hicks John W Optical communications systems and process for signal amplification using stimulated brillouin scattering (SBS) and laser utilized in the system
US4712075A (en) * 1985-11-27 1987-12-08 Polaroid Corporation Optical amplifier
US4782491A (en) * 1987-04-09 1988-11-01 Polaroid Corporation Ion doped, fused silica glass fiber laser
IT1237135B (it) * 1989-10-30 1993-05-24 Pirelli Cavi Spa Gruppo di amplificazione ottico a basso rumore, con riflessione della potenza di pompaggio.

Also Published As

Publication number Publication date
DE69022129D1 (de) 1995-10-12
EP0404152B1 (de) 1995-09-06
EP0404152A2 (de) 1990-12-27
US5136420A (en) 1992-08-04
CA2019253A1 (en) 1990-12-23
EP0404152A3 (de) 1991-10-23
CA2019253C (en) 1994-01-11

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee