DE60138935D1 - Optischer Verstärker - Google Patents
Optischer VerstärkerInfo
- Publication number
- DE60138935D1 DE60138935D1 DE60138935T DE60138935T DE60138935D1 DE 60138935 D1 DE60138935 D1 DE 60138935D1 DE 60138935 T DE60138935 T DE 60138935T DE 60138935 T DE60138935 T DE 60138935T DE 60138935 D1 DE60138935 D1 DE 60138935D1
- Authority
- DE
- Germany
- Prior art keywords
- optical amplifier
- amplifier
- 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
- 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
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0078—Frequency filtering
-
- 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
- H01S3/05—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
- H01S3/06758—Tandem 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
- H01S3/13—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
- 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
- H01S2301/00—Functional characteristics
- H01S2301/04—Gain spectral shaping, flattening
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Optical Communication System (AREA)
- Semiconductor Lasers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000046467 | 2000-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60138935D1 true DE60138935D1 (de) | 2009-07-23 |
Family
ID=18568868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60138935T Expired - Lifetime DE60138935D1 (de) | 2000-02-23 | 2001-02-15 | Optischer Verstärker |
Country Status (4)
Country | Link |
---|---|
US (2) | US6633429B2 (de) |
EP (1) | EP1128504B8 (de) |
JP (1) | JP4900501B2 (de) |
DE (1) | DE60138935D1 (de) |
Families Citing this family (73)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6721092B2 (en) * | 2001-02-21 | 2004-04-13 | Nippon Telegraph And Telephone Corporation | Thulium-doped fiber amplifier using pump light for improving conversion efficiency in S-band |
US20020163685A1 (en) * | 2001-05-01 | 2002-11-07 | Swanson Eric Arthur | System and method for routing working and protect paths |
JP2003069116A (ja) * | 2001-08-22 | 2003-03-07 | Fujitsu Ltd | 光増幅器及び利得偏差補償方法 |
US6954305B2 (en) * | 2001-09-26 | 2005-10-11 | Sumitomo Electric Industries, Ltd. | Optical amplifier and optical transmission system using it |
US7136585B2 (en) * | 2001-12-14 | 2006-11-14 | Kiribati Wireless Ventures, Llc | Optical amplifiers in a free space laser communication system |
JP2003188831A (ja) * | 2001-12-20 | 2003-07-04 | Fujitsu Ltd | 光伝送システムおよび光中継器 |
US7525725B2 (en) * | 2002-03-05 | 2009-04-28 | Sumitomo Electric Industries, Ltd. | Optical amplification module, optical amplifier, optical communication system, and white light source |
US6909538B2 (en) * | 2002-03-08 | 2005-06-21 | Lightwave Electronics | Fiber amplifiers with depressed cladding and their uses in Er-doped fiber amplifiers for the S-band |
JP4094352B2 (ja) * | 2002-06-24 | 2008-06-04 | 富士通株式会社 | 光増幅器 |
US7400443B1 (en) * | 2002-11-20 | 2008-07-15 | Ciena Corporation | Method and apparatus for optical amplifying device gain control with gain threshold |
KR100480259B1 (ko) * | 2002-12-14 | 2005-04-07 | 삼성전자주식회사 | 툴륨 첨가 광섬유 증폭기 |
JP4451313B2 (ja) * | 2003-02-21 | 2010-04-14 | 富士通株式会社 | 遅延位相整合ファイバを用いた光増幅器 |
US20060209392A1 (en) * | 2003-08-11 | 2006-09-21 | Renato Caponi | Multi-stage optical amplifier optimized with respect to noise, gain and bandwidth |
US7181119B2 (en) * | 2003-09-05 | 2007-02-20 | Sumitomo Electric Industries, Ltd. | Optically amplifying waveguide, optical amplifier module, and optical communication system |
KR100582542B1 (ko) * | 2003-11-11 | 2006-05-23 | 한국전자통신연구원 | 장파장 대역 이득제어 광증폭기 |
DE102004047745A1 (de) * | 2004-09-30 | 2006-04-27 | Siemens Ag | Ermittlung der verstärkten spontanen Emission in einem optischen Faserverstärker |
WO2006095395A1 (ja) * | 2005-03-07 | 2006-09-14 | Fujitsu Limited | 光サージ抑圧型光増幅器 |
EP1788730B1 (de) * | 2005-11-21 | 2009-07-01 | Alcatel Lucent | Optische Verstärkungseinrichtung mit Kompensation von Faserabschnittverlustanstiegen |
US9867530B2 (en) | 2006-08-14 | 2018-01-16 | Volcano Corporation | Telescopic side port catheter device with imaging system and method for accessing side branch occlusions |
US9596993B2 (en) | 2007-07-12 | 2017-03-21 | Volcano Corporation | Automatic calibration systems and methods of use |
EP2178442B1 (de) | 2007-07-12 | 2017-09-06 | Volcano Corporation | Katheter für in-vivo-bildgebung |
WO2009009802A1 (en) | 2007-07-12 | 2009-01-15 | Volcano Corporation | Oct-ivus catheter for concurrent luminal imaging |
US7961380B2 (en) * | 2008-02-19 | 2011-06-14 | Oclaro North America | Fast power transient supression in constant power-mode controlled optical amplifiers |
KR101650212B1 (ko) * | 2008-08-26 | 2016-08-22 | 가부시키가이샤 니콘 | 레이저 장치, 광치료 장치, 노광 장치, 디바이스 제조 방법, 및 피검물 검사 장치 |
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*** |
US8428463B2 (en) * | 2010-05-10 | 2013-04-23 | Infinera Corporation | Apparatus and method for controlling a dynamic gain equalizer |
US11141063B2 (en) | 2010-12-23 | 2021-10-12 | Philips Image Guided Therapy Corporation | Integrated system architectures and methods of use |
US11040140B2 (en) | 2010-12-31 | 2021-06-22 | Philips Image Guided Therapy Corporation | Deep vein thrombosis therapeutic methods |
WO2013033592A1 (en) | 2011-08-31 | 2013-03-07 | Volcano Corporation | Optical-electrical rotary joint and methods of use |
JP2013157572A (ja) * | 2012-01-31 | 2013-08-15 | Fujitsu Optical Components Ltd | 光増幅器および光増幅器の製造方法 |
CA2887421A1 (en) * | 2012-10-05 | 2014-04-10 | David Welford | Systems and methods for amplifying light |
US11272845B2 (en) | 2012-10-05 | 2022-03-15 | Philips Image Guided Therapy Corporation | System and method for instant and automatic border detection |
US10070827B2 (en) | 2012-10-05 | 2018-09-11 | Volcano Corporation | Automatic image playback |
US9367965B2 (en) | 2012-10-05 | 2016-06-14 | Volcano Corporation | Systems and methods for generating images of tissue |
US9292918B2 (en) | 2012-10-05 | 2016-03-22 | Volcano Corporation | Methods and systems for transforming luminal images |
US9307926B2 (en) | 2012-10-05 | 2016-04-12 | Volcano Corporation | Automatic stent detection |
US9324141B2 (en) | 2012-10-05 | 2016-04-26 | Volcano Corporation | Removal of A-scan streaking artifact |
US9286673B2 (en) | 2012-10-05 | 2016-03-15 | Volcano Corporation | Systems for correcting distortions in a medical image and methods of use thereof |
US10568586B2 (en) | 2012-10-05 | 2020-02-25 | Volcano Corporation | Systems for indicating parameters in an imaging data set and methods of use |
US9858668B2 (en) | 2012-10-05 | 2018-01-02 | Volcano Corporation | Guidewire artifact removal in images |
US9840734B2 (en) | 2012-10-22 | 2017-12-12 | Raindance Technologies, Inc. | Methods for analyzing DNA |
WO2014093374A1 (en) | 2012-12-13 | 2014-06-19 | Volcano Corporation | Devices, systems, and methods for targeted cannulation |
US10939826B2 (en) | 2012-12-20 | 2021-03-09 | Philips Image Guided Therapy Corporation | Aspirating and removing biological material |
WO2014113188A2 (en) | 2012-12-20 | 2014-07-24 | Jeremy Stigall | Locating intravascular images |
WO2014107287A1 (en) | 2012-12-20 | 2014-07-10 | Kemp Nathaniel J | Optical coherence tomography system that is reconfigurable between different imaging modes |
JP6785554B2 (ja) | 2012-12-20 | 2020-11-18 | ボルケーノ コーポレイション | 平滑遷移カテーテル |
US11406498B2 (en) | 2012-12-20 | 2022-08-09 | Philips Image Guided Therapy Corporation | Implant delivery system and implants |
US10942022B2 (en) | 2012-12-20 | 2021-03-09 | Philips Image Guided Therapy Corporation | Manual calibration of imaging system |
US10993694B2 (en) | 2012-12-21 | 2021-05-04 | Philips Image Guided Therapy Corporation | Rotational ultrasound imaging catheter with extended catheter body telescope |
US10413317B2 (en) | 2012-12-21 | 2019-09-17 | Volcano Corporation | System and method for catheter steering and operation |
CA2895940A1 (en) | 2012-12-21 | 2014-06-26 | Andrew Hancock | System and method for multipath processing of image signals |
US10058284B2 (en) | 2012-12-21 | 2018-08-28 | Volcano Corporation | Simultaneous imaging, monitoring, and therapy |
WO2014099896A1 (en) | 2012-12-21 | 2014-06-26 | David Welford | Systems and methods for narrowing a wavelength emission of light |
WO2014100162A1 (en) | 2012-12-21 | 2014-06-26 | Kemp Nathaniel J | Power-efficient optical buffering using optical switch |
US9612105B2 (en) | 2012-12-21 | 2017-04-04 | Volcano Corporation | Polarization sensitive optical coherence tomography system |
US9486143B2 (en) | 2012-12-21 | 2016-11-08 | Volcano Corporation | Intravascular forward imaging device |
EP2934280B1 (de) | 2012-12-21 | 2022-10-19 | Mai, Jerome | Ultraschallbildgebung mit variabler liniendichte |
CA2895993A1 (en) | 2012-12-21 | 2014-06-26 | Jason Spencer | System and method for graphical processing of medical data |
WO2014138555A1 (en) | 2013-03-07 | 2014-09-12 | Bernhard Sturm | Multimodal segmentation in intravascular images |
US10226597B2 (en) | 2013-03-07 | 2019-03-12 | Volcano Corporation | Guidewire with centering mechanism |
US20140276923A1 (en) | 2013-03-12 | 2014-09-18 | Volcano Corporation | Vibrating catheter and methods of use |
EP3895604A1 (de) | 2013-03-12 | 2021-10-20 | Collins, Donna | Systeme und verfahren zur diagnose koronarer mikrovaskulärer erkrankungen |
JP6339170B2 (ja) | 2013-03-13 | 2018-06-06 | ジンヒョン パーク | 回転式血管内超音波装置から画像を生成するためのシステム及び方法 |
US9301687B2 (en) | 2013-03-13 | 2016-04-05 | Volcano Corporation | System and method for OCT depth calibration |
US11026591B2 (en) | 2013-03-13 | 2021-06-08 | Philips Image Guided Therapy Corporation | Intravascular pressure sensor calibration |
US10426590B2 (en) | 2013-03-14 | 2019-10-01 | Volcano Corporation | Filters with echogenic characteristics |
US10219887B2 (en) | 2013-03-14 | 2019-03-05 | Volcano Corporation | Filters with echogenic characteristics |
US10292677B2 (en) | 2013-03-14 | 2019-05-21 | Volcano Corporation | Endoluminal filter having enhanced echogenic properties |
KR101489279B1 (ko) * | 2013-06-27 | 2015-02-04 | 주식회사 라이콤 | 자기 자동이득제어 분산형 라만증폭기의 자동이득제어방법 |
US9680283B2 (en) * | 2013-12-20 | 2017-06-13 | Oplink Communications, Llc | Switchable-gain optical amplifier |
CN104466634B (zh) * | 2014-11-25 | 2017-10-31 | 武汉光迅科技股份有限公司 | 一种线性腔掺杂光纤激光器 |
US11923651B2 (en) * | 2020-05-29 | 2024-03-05 | Subcom, Llc | Gain equalization in C+L erbium-doped fiber amplifiers |
CN117477356A (zh) * | 2022-07-20 | 2024-01-30 | 华为技术有限公司 | 一种光学放大器、光学放大方法及光通信设备 |
Family Cites Families (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4952017A (en) * | 1989-03-14 | 1990-08-28 | At&T Bell Laboratories | Polarization independent semiconductor optical amplifier |
US5260823A (en) | 1990-05-21 | 1993-11-09 | University Of Southampton | Erbium-doped fibre amplifier with shaped spectral gain |
US5050949A (en) * | 1990-06-22 | 1991-09-24 | At&T Bell Laboratories | Multi-stage optical fiber amplifier |
US5117303A (en) * | 1990-08-23 | 1992-05-26 | At&T Bell Laboratories | Method of operating concatenated optical amplifiers |
CA2137082C (en) * | 1992-06-01 | 2001-04-17 | Stephen Anthony Cassidy | Filter with preselected attenuation/wavelength characteristic |
US5271024A (en) * | 1992-07-27 | 1993-12-14 | General Instrument Corporation | Optical fiber amplifier and laser with flattened gain slope |
JPH0677571A (ja) * | 1992-08-24 | 1994-03-18 | Nippon Telegr & Teleph Corp <Ntt> | 光導波路形フィルタ |
US5430572A (en) * | 1993-09-30 | 1995-07-04 | At&T Corp. | High power, high gain, low noise, two-stage optical amplifier |
US5406411A (en) * | 1993-10-14 | 1995-04-11 | Corning Incorporated | Fiber amplifier having efficient pump power utilization |
US5530583A (en) * | 1993-11-18 | 1996-06-25 | Matsushita Electric Industrial Co., Ltd. | Optical signal amplification apparatus and an optical fiber transmission system using the same |
JP2778438B2 (ja) * | 1993-12-27 | 1998-07-23 | 日本電気株式会社 | 光増幅装置と光増幅器設計方法と光中継伝送システム |
EP0745281B1 (de) * | 1994-02-18 | 2001-06-13 | BRITISH TELECOMMUNICATIONS public limited company | Gewinngesteuerter faseroptischer verstärker |
IT1270032B (it) * | 1994-04-14 | 1997-04-28 | Pirelli Cavi Spa | Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda |
US5541766A (en) * | 1994-11-30 | 1996-07-30 | At&T Corp. | Gain control for optically amplified systems |
JPH0918416A (ja) * | 1995-06-28 | 1997-01-17 | Hitachi Ltd | 光増幅器 |
JP3829345B2 (ja) * | 1995-09-08 | 2006-10-04 | 住友電気工業株式会社 | 光ファイバ増幅器 |
JP3739453B2 (ja) * | 1995-11-29 | 2006-01-25 | 富士通株式会社 | 光増幅器及び該光増幅器を備えた光通信システム |
JP3422398B2 (ja) * | 1995-12-07 | 2003-06-30 | 富士通株式会社 | 重心波長モニタ方法及び装置、光増幅器並びに光通信システム |
JPH09191303A (ja) * | 1996-01-09 | 1997-07-22 | Kokusai Denshin Denwa Co Ltd <Kdd> | 光伝送路 |
US5668821A (en) * | 1996-01-16 | 1997-09-16 | Lucent Technologies Inc. | Optical systems and devices employing spectrally flattened amplified spontaneous emission |
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 |
KR970064034A (ko) * | 1996-02-10 | 1997-09-12 | 김광호 | 다중파장 자동 파워 및 이득 조절용 광전송 시스템 및 레이저 |
CA2182830C (en) * | 1996-02-22 | 2002-06-18 | Katsuyuki Imoto | Rare earth element-doped multiple-core optical fiber and optical systems using the same |
US6025947A (en) * | 1996-05-02 | 2000-02-15 | Fujitsu Limited | Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied |
JPH09321701A (ja) * | 1996-05-31 | 1997-12-12 | Fujitsu Ltd | 光通信システム及び光増幅器 |
JPH10173597A (ja) * | 1996-12-06 | 1998-06-26 | Nec Corp | 光イコライザ |
JPH10173606A (ja) * | 1996-12-10 | 1998-06-26 | Kokusai Denshin Denwa Co Ltd <Kdd> | 光増幅中継伝送システム及び光増幅器 |
US6172803B1 (en) | 1997-02-18 | 2001-01-09 | Nippon Telegraph And Telephone Corporation | Optical amplifier and transmission system using the same |
US5864424A (en) * | 1997-05-19 | 1999-01-26 | Hitachi, Ltd. | Optical signal amplifying circuit |
US6049417A (en) | 1997-06-02 | 2000-04-11 | Lucent Technologies Inc. | Wide band optical amplifier |
JP3771010B2 (ja) * | 1997-08-06 | 2006-04-26 | 富士通株式会社 | 光増幅のための方法及び該方法を実施するためのシステム |
JP3452768B2 (ja) * | 1997-08-11 | 2003-09-29 | 富士通株式会社 | 光増幅のための方法及び装置並びに該装置を有するシステム |
JPH1187812A (ja) * | 1997-09-12 | 1999-03-30 | Fujitsu Ltd | 利得等化器及び該利得等化器を備えた光伝送システム |
US6081361A (en) * | 1997-10-17 | 2000-06-27 | Lucent Technologies Inc. | Sub-carrier multiplexing in broadband optical networks |
JP3969807B2 (ja) * | 1997-10-20 | 2007-09-05 | 富士通株式会社 | 分散補償装置 |
KR100258970B1 (ko) * | 1997-11-20 | 2000-06-15 | 윤종용 | 광섬유 증폭기 |
JP4137211B2 (ja) * | 1998-02-23 | 2008-08-20 | 富士通株式会社 | 分散補償ファイバ及びそれを用いた光増幅装置 |
US6603596B2 (en) * | 1998-03-19 | 2003-08-05 | Fujitsu Limited | Gain and signal level adjustments of cascaded optical amplifiers |
JP3453301B2 (ja) * | 1998-04-27 | 2003-10-06 | 富士通株式会社 | 能動型光ファイバ及び光ファイバ増幅器 |
US6057959A (en) * | 1998-05-22 | 2000-05-02 | Ciena Corporation | Optical amplifier having substantially uniform spectral gain |
US6049413A (en) * | 1998-05-22 | 2000-04-11 | Ciena Corporation | Optical amplifier having first and second stages and an attenuator controlled based on the gains of the first and second stages |
US5963361A (en) * | 1998-05-22 | 1999-10-05 | Ciena Corporation | Optical amplifier having a variable attenuator controlled based on detected ASE |
JP3134854B2 (ja) * | 1998-09-07 | 2001-02-13 | 日本電気株式会社 | 光増幅器 |
JP3844902B2 (ja) * | 1999-03-02 | 2006-11-15 | 富士通株式会社 | 波長多重用光増幅器及び光通信システム |
JP2000341213A (ja) * | 1999-05-26 | 2000-12-08 | Fujitsu Ltd | 温度補償機能を有する利得調整器および光増幅器 |
JP2000354005A (ja) * | 1999-06-11 | 2000-12-19 | Fujitsu Ltd | 利得等化方法、光増幅装置および光伝送システム |
WO2001005005A1 (fr) * | 1999-07-09 | 2001-01-18 | Sumitomo Electric Industries, Ltd. | Amplificateur optique et procede d'amplification optique |
US6307668B1 (en) * | 1999-10-04 | 2001-10-23 | Optigain, Inc. | Ultra-wide bandwidth fiber based optical amplifier |
US6407855B1 (en) * | 1999-10-29 | 2002-06-18 | Sdl, Inc. | Multiple wavelength optical sources |
US6292290B1 (en) * | 1999-12-20 | 2001-09-18 | Nortel Networks Limited | Methods and apparatus for adjusting power in an optical signal, for providing a seamless optical ring and for providing a bidirectional equalized amplifier |
JP2001203415A (ja) * | 2000-01-20 | 2001-07-27 | Kddi Corp | 光増幅器 |
JP2001313433A (ja) * | 2000-02-23 | 2001-11-09 | Fujitsu Ltd | 光増幅器及び光増幅方法 |
JP4281245B2 (ja) * | 2000-12-15 | 2009-06-17 | 富士通株式会社 | 光増幅器 |
US6661570B2 (en) * | 2000-12-26 | 2003-12-09 | Sumitomo Electric Industries, Ltd. | Optical amplifier, optical communication system including the same, and optical fiber module included in the same |
US6532101B2 (en) * | 2001-03-16 | 2003-03-11 | Xtera Communications, Inc. | System and method for wide band Raman amplification |
US6535330B1 (en) * | 2001-03-31 | 2003-03-18 | Corning Incorporated | Dynamic controller for a multi-channel optical amplifier |
JP5226164B2 (ja) * | 2001-06-14 | 2013-07-03 | 富士通株式会社 | 光増幅器 |
TW584742B (en) * | 2002-01-25 | 2004-04-21 | Alps Electric Co Ltd | Multilayer film optical filter, method of producing the same, and optical component using the same |
-
2001
- 2001-02-15 EP EP01103514A patent/EP1128504B8/de not_active Expired - Lifetime
- 2001-02-15 DE DE60138935T patent/DE60138935D1/de not_active Expired - Lifetime
- 2001-02-23 US US09/790,507 patent/US6633429B2/en not_active Expired - Lifetime
-
2003
- 2003-08-26 US US10/647,321 patent/US7480092B2/en not_active Expired - Fee Related
-
2010
- 2010-06-04 JP JP2010128896A patent/JP4900501B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20040042066A1 (en) | 2004-03-04 |
US7480092B2 (en) | 2009-01-20 |
EP1128504B8 (de) | 2009-08-12 |
JP2010199627A (ja) | 2010-09-09 |
JP4900501B2 (ja) | 2012-03-21 |
EP1128504A2 (de) | 2001-08-29 |
EP1128504B1 (de) | 2009-06-10 |
US6633429B2 (en) | 2003-10-14 |
EP1128504A3 (de) | 2004-06-16 |
US20020001124A1 (en) | 2002-01-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60138935D1 (de) | Optischer Verstärker | |
DE60218012D1 (de) | Optischer Verstärker | |
DE60002082D1 (de) | Optischer multipassverstärker | |
DE69941102D1 (de) | Optischer Verstärker | |
DE60127787D1 (de) | Optisches wellenleiterinterferometer | |
DE60031579D1 (de) | Optisches element | |
DE50114543D1 (de) | Laserverstärkersystem | |
DE60143386D1 (de) | Optischer abnehmer | |
DE1191812T1 (de) | Optischer Mikrofonsensor | |
DE60107907D1 (de) | Ramanverstärker | |
DE60137499D1 (de) | Lichtwellenleiterfaser | |
DE60205439D1 (de) | Optischer Verstärker | |
DE60133250D1 (de) | Optischer Modulator | |
DE60021170D1 (de) | Verstärker | |
DE60040192D1 (de) | Breitbandiger optischer Verstärker | |
DE60033666D1 (de) | Verstärker | |
DE60104965D1 (de) | Optischer Deflektor | |
DE69938710D1 (de) | Optischer verstärker | |
DE60118202D1 (de) | Optischer sensor | |
DE50114244D1 (de) | Laserverstärkersystem | |
DE60007803D1 (de) | Optische Verstärker | |
DE60118475D1 (de) | Optisches Element | |
DE60201856D1 (de) | Klasse-D Verstärker | |
DE60208452D1 (de) | Thulium-dotierter Faserverstärker | |
DK1285291T3 (da) | Optisk fiber |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |