DE69736942D1 - Stabilisierte Leistungsregelung für optische Übertragungssysteme - Google Patents
Stabilisierte Leistungsregelung für optische ÜbertragungssystemeInfo
- Publication number
- DE69736942D1 DE69736942D1 DE69736942T DE69736942T DE69736942D1 DE 69736942 D1 DE69736942 D1 DE 69736942D1 DE 69736942 T DE69736942 T DE 69736942T DE 69736942 T DE69736942 T DE 69736942T DE 69736942 D1 DE69736942 D1 DE 69736942D1
- Authority
- DE
- Germany
- Prior art keywords
- power control
- optical transmission
- transmission systems
- stabilized power
- stabilized
- 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
- 230000005540 biological transmission Effects 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
-
- 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
- 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
- H04B10/506—Multiwavelength transmitters
-
- 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
- H04B10/564—Power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0221—Power control, e.g. to keep the total optical power constant
- H04J14/02212—Power control, e.g. to keep the total optical power constant by addition of a dummy signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0221—Power control, e.g. to keep the total optical power constant
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Lasers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/735,759 US6031647A (en) | 1996-10-23 | 1996-10-23 | Stable power control for optical transmission systems |
US735759 | 1996-10-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69736942D1 true DE69736942D1 (de) | 2006-12-28 |
DE69736942T2 DE69736942T2 (de) | 2007-03-01 |
Family
ID=24957070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69736942T Expired - Lifetime DE69736942T2 (de) | 1996-10-23 | 1997-10-03 | Stabilisierte Leistungsregelung für optische Übertragungssysteme |
Country Status (4)
Country | Link |
---|---|
US (2) | US6031647A (de) |
EP (1) | EP0838913B1 (de) |
JP (1) | JP4191274B2 (de) |
DE (1) | DE69736942T2 (de) |
Families Citing this family (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6031647A (en) * | 1996-10-23 | 2000-02-29 | Nortel Networks Corporation | Stable power control for optical transmission systems |
DE19734957C1 (de) * | 1997-08-13 | 1998-12-24 | Lucent Tech Network Sys Gmbh | Verfahren und Anordnung zur Wellenlängenstabilisierung für mehrkanalige optische Übertragungssysteme |
US6301031B2 (en) * | 1997-09-02 | 2001-10-09 | Agere Systems Optoelectronics Guardian Corp. | Method and apparatus for wavelength-channel tracking and alignment within an optical communications system |
US5923450A (en) * | 1998-09-30 | 1999-07-13 | Alcatel Network Systems, Inc. | Optical channel regulator and method |
JPH11202374A (ja) | 1998-01-14 | 1999-07-30 | Fujitsu Ltd | 波長多重システムにおける光通信端局、光信号伝送方法、及び光信号の増設方法 |
JP3829962B2 (ja) * | 1998-01-22 | 2006-10-04 | 富士通株式会社 | 光アッテネータ並びに該光アッテネータを備えたシステム、光増幅器及び端局装置 |
JPH11252047A (ja) * | 1998-03-04 | 1999-09-17 | Fujitsu Ltd | 光波長多重システム、及びその端局 |
JP3565313B2 (ja) * | 1998-05-25 | 2004-09-15 | 富士通株式会社 | 光送信機並びに該光送信機を有する端局装置及び光通信システム |
US6545799B1 (en) | 1998-09-02 | 2003-04-08 | Corning Incorporated | Method and apparatus for optical system link control |
DE19843206A1 (de) * | 1998-09-16 | 2000-04-20 | Siemens Ag | Optische Sendeeinrichtung |
JP2000241778A (ja) * | 1999-02-19 | 2000-09-08 | Fujitsu Ltd | 光通信装置および光分岐・挿入装置 |
US6275329B1 (en) * | 1999-05-10 | 2001-08-14 | Oni Systems Corp. | Method and apparatus for amplification of an optical signal |
US6563614B1 (en) * | 1999-05-21 | 2003-05-13 | Corvis Corporation | Optical transmission system and amplifier control apparatuses and methods |
GB2353396B (en) * | 1999-08-13 | 2002-10-09 | Marconi Comm Ltd | Methods of controlling a laser in a WDM application |
EP1962394B1 (de) * | 1999-08-23 | 2009-12-23 | Fujitsu Limited | Multiplexing-Vorrichtung zur Wellenlängentrennung |
US6449068B1 (en) * | 2000-03-06 | 2002-09-10 | Lightchip, Inc. | Optical power managed network node for processing dense wavelength division multiplexed optical signals |
CA2409726A1 (en) * | 2000-03-06 | 2001-09-13 | Lightchip, Inc. | Optical power managed network node for processing wavelength division multiplexed optical signals |
JP3363133B2 (ja) * | 2000-07-21 | 2003-01-08 | 住友電気工業株式会社 | 波長多重分割伝送方法およびそのシステム |
US6643466B1 (en) * | 2000-09-29 | 2003-11-04 | Lucent Technologies Inc. | Method and apparatus for controlling signal power level in free space communication |
GB0105629D0 (en) * | 2001-03-07 | 2001-04-25 | Marconi Comm Ltd | A transmitter system |
US7242863B2 (en) * | 2001-05-09 | 2007-07-10 | Ciena Corporation | Method and system for coordinating and utilizing channel power information in an optical communications network |
US6907195B2 (en) | 2001-08-28 | 2005-06-14 | Dorsal Networks, Inc. | Terminals having sub-band substitute signal control in optical communication systems |
US6944399B2 (en) | 2001-08-28 | 2005-09-13 | Dorsal Networks, Inc. | Methods of signal substitution for maintenance of amplifier saturation |
JP4569064B2 (ja) * | 2001-09-27 | 2010-10-27 | 住友電気工業株式会社 | 光送信機及び波長分割多重伝送システム |
US6744964B1 (en) * | 2001-12-20 | 2004-06-01 | Ciena Corporation | System and method for controlling variable optical attenuators |
US20030133713A1 (en) * | 2002-01-17 | 2003-07-17 | Ng Eddie Kai Ho | Method and system for multi-level power management in an optical network |
US7058301B2 (en) | 2002-02-28 | 2006-06-06 | Bosloy Jonathan L | Apparatus and method for planned wavelength addition and removal in a wavelength division multiplexed system |
US7209655B2 (en) * | 2002-04-12 | 2007-04-24 | Fujitsu Limited | Sharing of power level information to support optical communications |
US7212742B2 (en) * | 2002-04-12 | 2007-05-01 | Fujitsu Limited | Power level management in optical networks |
US7209656B2 (en) * | 2002-04-12 | 2007-04-24 | Fujitsu Limited | Management of optical links using power level information |
US6668137B1 (en) * | 2002-06-26 | 2003-12-23 | Nortel Networks Limited | Feed forward optical power control |
DE10303314A1 (de) * | 2003-01-28 | 2004-07-29 | Marconi Communications Gmbh | Ausgangsstufe für die WDM-Nachrichtenübertragung und Verfahren zum Austauschen von Fülllichtquellen in einer solchen Ausgangsstufe |
JP2004361818A (ja) * | 2003-06-06 | 2004-12-24 | Fujitsu Ltd | 信号光送出部 |
JP4642421B2 (ja) * | 2004-09-27 | 2011-03-02 | 富士通株式会社 | パッケージ始動制御装置 |
US7643759B2 (en) * | 2005-01-12 | 2010-01-05 | Sumitomo Electric Industries, Ltd. | Signal-quality evaluation device, signal adjustment method, optical-signal evaluation system, and optical transmission system |
WO2009060522A1 (ja) * | 2007-11-07 | 2009-05-14 | Fujitsu Limited | 光送受信モジュールおよびその管理制御方法,光送受信装置ならびに波長多重光送受信装置 |
JP5098807B2 (ja) * | 2008-05-22 | 2012-12-12 | 富士通株式会社 | 光信号調整方法及び光信号調整装置 |
JP2010011098A (ja) * | 2008-06-27 | 2010-01-14 | Fujitsu Ltd | 光伝送装置 |
JP5198996B2 (ja) * | 2008-09-19 | 2013-05-15 | 住友大阪セメント株式会社 | 光変調器 |
JP5476697B2 (ja) * | 2008-09-26 | 2014-04-23 | 富士通株式会社 | 光信号送信装置 |
JP2011188213A (ja) * | 2010-03-08 | 2011-09-22 | Fujitsu Ltd | 光信号送信装置、光増幅装置、光減衰装置及び光信号送信方法 |
JP5504982B2 (ja) * | 2010-03-10 | 2014-05-28 | 富士通株式会社 | 偏波多重光送信器、および、偏波多重光信号の制御方法 |
JP2012004691A (ja) * | 2010-06-14 | 2012-01-05 | Nippon Telegr & Teleph Corp <Ntt> | 偏波多重光伝送システム |
JP2012169757A (ja) * | 2011-02-10 | 2012-09-06 | Nec Corp | 光伝送装置 |
EP2620446A1 (de) | 2012-01-27 | 2013-07-31 | Laboratorios Del Dr. Esteve, S.A. | Immunogene zur HIV-Impfung |
WO2015045311A1 (ja) * | 2013-09-24 | 2015-04-02 | 日本電気株式会社 | 伝送装置、伝送システム、伝送方法及びプログラムが記憶された記憶媒体 |
JP2015164264A (ja) * | 2014-02-28 | 2015-09-10 | 富士通株式会社 | 波長多重装置、光伝送装置及び波長多重方法 |
JP6648437B2 (ja) * | 2015-07-29 | 2020-02-14 | 富士通株式会社 | 送受信システム、送信装置、受信装置及び送受信システムの制御方法 |
US10142022B1 (en) | 2017-05-24 | 2018-11-27 | Ciena Corporation | Adjustment of control parameters of section of optical fiber network |
US10439751B2 (en) | 2017-05-24 | 2019-10-08 | Ciena Corporation | Power control in an optical fiber network |
US11374675B2 (en) * | 2017-06-28 | 2022-06-28 | Huawei Technologies Co., Ltd. | Method and apparatus for modifying channels in an optical medium |
JP7024234B2 (ja) * | 2017-07-18 | 2022-02-24 | 富士通株式会社 | 光送信機、及び光送信機の制御方法 |
US10868614B2 (en) | 2018-09-04 | 2020-12-15 | Ciena Corporation | Optical power replacement for faulted spectrum in channel holder based optical links |
US10547404B1 (en) | 2018-11-13 | 2020-01-28 | Ciena Corporation | Automatic optical link calibration with channel holders |
WO2020147938A1 (en) * | 2019-01-15 | 2020-07-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Dispersion compensation |
US10439709B1 (en) | 2019-02-26 | 2019-10-08 | Ciena Corporation | Handling channel holder failures in channel holder equipped optical links |
US10680737B1 (en) | 2019-04-09 | 2020-06-09 | Ciena Corporation | Bundling capacity changes in channel holder based optical links |
US10833791B1 (en) | 2019-06-17 | 2020-11-10 | Ciena Corporation | Reducing interference from channel holders in an optical link |
CA3161633A1 (en) | 2019-11-14 | 2021-05-20 | Aelix Therapeutics, S.L. | Dosage regimens for vaccines |
US11536916B1 (en) * | 2021-05-10 | 2022-12-27 | Amazon Technologies, Inc. | Pathloss optimization for optical systems |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2945055C2 (de) * | 1979-11-08 | 1982-09-02 | Philips Kommunikations Industrie Ag, 8500 Nuernberg | Verfahren und Vorrichtung zum Konstanthalten der in einer Lichtleitfaser geführten Lichtleistung |
JP2787820B2 (ja) * | 1990-07-20 | 1998-08-20 | キヤノン株式会社 | 波長多重光通信システム及びそこで用いられる光増幅装置 |
US5088095A (en) * | 1991-01-31 | 1992-02-11 | At&T Bell Laboratories | Gain stabilized fiber amplifier |
US5225922A (en) * | 1991-11-21 | 1993-07-06 | At&T Bell Laboratories | Optical transmission system equalizer |
US5276543A (en) * | 1991-11-22 | 1994-01-04 | Gte Laboratories Incorporated | Optical signal equalizer for wavelength division multiplexed optical fiber systems |
US5500756A (en) * | 1992-02-28 | 1996-03-19 | Hitachi, Ltd. | Optical fiber transmission system and supervision method of the same |
DE4215338A1 (de) * | 1992-05-09 | 1993-11-11 | Sel Alcatel Ag | Optisches Nachrichtenübertragungssystem mit Überwachungsvorrichtung zur Vermeidung von Riesenimpulsen |
JPH06132895A (ja) * | 1992-10-20 | 1994-05-13 | Hitachi Ltd | 光パワー変化補償回路及び光伝送装置 |
FR2707442B1 (fr) * | 1993-07-06 | 1995-09-15 | Pirio Francis | Système de transmission sur fibre optique à compensation des distorsions en ligne. |
WO1995008879A1 (en) * | 1993-09-22 | 1995-03-30 | Massachussetts Institute Of Technology | Error-rate based laser drive control |
FR2715017B1 (fr) * | 1994-01-13 | 1996-02-16 | Alcatel Nv | Procédé de transmission et liaison optique à multiplexage spectral avec amplification. |
JP3379052B2 (ja) * | 1994-09-26 | 2003-02-17 | 富士通株式会社 | 波長多重光増幅装置及び光波長多重伝送システム及び光波長多重伝送方法 |
JP3432620B2 (ja) * | 1994-12-20 | 2003-08-04 | 富士通株式会社 | 光送信機及びレーザダイオードモジュール |
JPH08264871A (ja) * | 1995-03-20 | 1996-10-11 | Fujitsu Ltd | 多波長一括光増幅装置 |
JPH08265259A (ja) * | 1995-03-20 | 1996-10-11 | Fujitsu Ltd | 光増幅中継器 |
JPH08278523A (ja) * | 1995-04-05 | 1996-10-22 | Hitachi Ltd | 光増幅装置 |
JP2687933B2 (ja) * | 1995-06-09 | 1997-12-08 | 日本電気株式会社 | 光直接増幅器 |
JPH0918415A (ja) * | 1995-06-28 | 1997-01-17 | Fujitsu Ltd | 光サージ抑圧光増幅装置 |
US5739938A (en) * | 1996-09-10 | 1998-04-14 | Northrop Grumman Corporation | Optically-powered directly-modulated fiber optic link |
US5745275A (en) * | 1996-10-15 | 1998-04-28 | Lucent Technologies Inc. | Multi-channel stabilization of a multi-channel transmitter through correlation feedback |
US6031647A (en) * | 1996-10-23 | 2000-02-29 | Nortel Networks Corporation | Stable power control for optical transmission systems |
US6040933A (en) * | 1997-12-19 | 2000-03-21 | Nortel Networks Corporation | Method and apparatus for channel equalization in wavelength division multiplexed systems |
-
1996
- 1996-10-23 US US08/735,759 patent/US6031647A/en not_active Expired - Lifetime
-
1997
- 1997-10-03 EP EP97307814A patent/EP0838913B1/de not_active Expired - Lifetime
- 1997-10-03 DE DE69736942T patent/DE69736942T2/de not_active Expired - Lifetime
- 1997-10-21 JP JP30653897A patent/JP4191274B2/ja not_active Expired - Lifetime
-
1999
- 1999-12-09 US US09/458,209 patent/US6268945B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0838913B1 (de) | 2006-11-15 |
DE69736942T2 (de) | 2007-03-01 |
US6031647A (en) | 2000-02-29 |
JP4191274B2 (ja) | 2008-12-03 |
JPH10215019A (ja) | 1998-08-11 |
US6268945B1 (en) | 2001-07-31 |
EP0838913A3 (de) | 2000-10-11 |
EP0838913A2 (de) | 1998-04-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R082 | Change of representative |
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