ES2002779A6 - Metodo de referenciar frecuencias de radiacion y sistema y red de comunicaciones correspondientes - Google Patents
Metodo de referenciar frecuencias de radiacion y sistema y red de comunicaciones correspondientesInfo
- Publication number
- ES2002779A6 ES2002779A6 ES8602290A ES8602290A ES2002779A6 ES 2002779 A6 ES2002779 A6 ES 2002779A6 ES 8602290 A ES8602290 A ES 8602290A ES 8602290 A ES8602290 A ES 8602290A ES 2002779 A6 ES2002779 A6 ES 2002779A6
- Authority
- ES
- Spain
- Prior art keywords
- radiation
- filter element
- sources
- output signals
- detection means
- 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
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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/506—Multiwavelength transmitters
-
- 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
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2383—Parallel arrangements
-
- 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
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
-
- 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
- H04B10/572—Wavelength control
-
- 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
- H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
-
- 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
- H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
- H01S5/0687—Stabilising the frequency of the laser
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Semiconductor Lasers (AREA)
- Optical Communication System (AREA)
- Lasers (AREA)
Abstract
METODO DE REFERENCIAR FRECUENCIAS DE RADIACION Y SISTEMA Y RED DE COMUNICACIONES CORRESPONDIENTES, PROCEDIENDO LA RADIACION DE UNA PLURALIDAD DE FUENTES, POR EJEMPLO LASERES. EL SISTEMA INCLUYE UN FILTRO, TAL COMO UN ETALON FABRY©PEROT, QUE RECIBE LA RADIACION. EL FILTRO TIENE UN JUEGO REPLICADO DE BANDAS PASANTES SEPARADAS EN FRECUENCIA. UN DETECTOR DETECTA LA RADIACION QUE ATRAVIESA EL FILTRO Y PROPORCIONA SEÑALES DE SALIDA CORRESPONDIENTES. UN MEDIO DE CONTROL RESPONDE A LAS SEÑALES DE SALIDA DEL DETECTOR PARA CONTROLAR LAS FUENTES DE MODO QUE LA RADIACION TRANSMITIDA A TRAVES DEL FILTRO SE MANTENGA SUSTANCIALMENTE CONSTANTE. LAS ANCHURAS DE BANDA DE LA RADIACION SON PEQUEÑAS EN COMPARACION CON LAS BANDAS PASANTES CORRESPONDIENTES DEL FILTRO. LA INVENCION ES APLICABLE A REDES DE COMUNICACIONES EN QUE SE REFERENCIA UNA SERIE DE JUEGOS DE FUENTES ALEJADAS DE RADIACION A UN JUEGO CENTRAL DE FUENTES DEREFERENCIA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB858522821A GB8522821D0 (en) | 1985-09-16 | 1985-09-16 | Frequency referencing system |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2002779A6 true ES2002779A6 (es) | 1988-10-01 |
Family
ID=10585221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8602290A Expired ES2002779A6 (es) | 1985-09-16 | 1986-09-16 | Metodo de referenciar frecuencias de radiacion y sistema y red de comunicaciones correspondientes |
Country Status (8)
Country | Link |
---|---|
US (1) | US4839614A (es) |
EP (1) | EP0240512B1 (es) |
JP (1) | JPS63500973A (es) |
CA (1) | CA1251831A (es) |
DE (1) | DE3676688D1 (es) |
ES (1) | ES2002779A6 (es) |
GB (1) | GB8522821D0 (es) |
WO (1) | WO1987001874A1 (es) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0681119B2 (ja) * | 1986-04-17 | 1994-10-12 | 日本電気株式会社 | 波長多重光伝送方式 |
DE3854730T2 (de) * | 1987-06-09 | 1996-05-02 | At & T Corp | Optisches Übertragungssystem mit Konstanthalten einer Frequenzgruppe. |
US5039984A (en) * | 1987-10-20 | 1991-08-13 | Telefind Corporation | Paging receiver with programmable areas of reception |
JPH0239131A (ja) * | 1988-07-29 | 1990-02-08 | Hitachi Ltd | 周波数間隔安定化方法、光ヘテロダイン又は光ホモダイン通信方法 |
AT393763B (de) * | 1989-03-21 | 1991-12-10 | Tabarelli Werner | Einrichtung zur konstanthaltung der luftwellenlaenge von laserlicht |
US4979178A (en) * | 1989-06-20 | 1990-12-18 | The Boeing Company | Tunable narrow-linewidth semiconductor laser |
US5003546A (en) * | 1989-08-31 | 1991-03-26 | At&T Bell Laboratories | Interferometric devices for reducing harmonic distortions in laser communication systems |
US5023947A (en) * | 1989-11-01 | 1991-06-11 | At&T Bell Laboratories | Optical equalization receiver for lightwave communication systems |
US5130998A (en) * | 1990-02-21 | 1992-07-14 | Mitsubiski Denki Kaubshiki Kaisha | Laser device with oscillation wavelength control |
ATE130711T1 (de) * | 1990-09-11 | 1995-12-15 | Nederland Ptt | Optisches übertragungsnetzwerk mit frequenzverkopplungsmitteln. |
DE4039955A1 (de) * | 1990-12-14 | 1992-06-17 | Zeiss Carl Fa | Anordnung mit zwei laserdioden zur erzeugung von licht mit zwei wellenlaengen |
JP2734778B2 (ja) * | 1991-01-16 | 1998-04-02 | 日本電気株式会社 | 光増幅装置 |
US5408349A (en) * | 1991-07-05 | 1995-04-18 | Hitachi, Ltd. | Optical frequency division multiplexing transmission system |
JPH0576068U (ja) * | 1992-03-24 | 1993-10-15 | 横河電機株式会社 | 周波数安定化光源 |
JP4000195B2 (ja) * | 1994-08-19 | 2007-10-31 | ライカ ゲオジステームス アクチエンゲゼルシャフト | 合成光波長の生成のための安定化された多周波数光源装置および合成光波長の生成のための方法 |
GB2293684B (en) * | 1994-09-27 | 1998-10-14 | Northern Telecom Ltd | An interfermetric multiplexer |
JPH08316938A (ja) * | 1995-05-17 | 1996-11-29 | Canon Inc | 複数のチャンネルを多重して通信を行う光通信方法及び光通信システム |
JPH0993194A (ja) * | 1995-09-27 | 1997-04-04 | Nec Corp | 波長安定回路 |
GB2314617B (en) * | 1996-06-24 | 2000-08-23 | Graviner Ltd Kidde | High sensitivity gas detection |
DE19625817A1 (de) * | 1996-06-28 | 1998-01-02 | Sel Alcatel Ag | Optische Sendeeinrichtung für ein hybrides Faser-Funk System |
US5825792A (en) * | 1996-07-11 | 1998-10-20 | Northern Telecom Limited | Wavelength monitoring and control assembly for WDM optical transmission systems |
JPH1075005A (ja) * | 1996-08-30 | 1998-03-17 | Ando Electric Co Ltd | 光周波数多重通信用光源装置 |
US5978119A (en) * | 1997-02-18 | 1999-11-02 | Lucent Technologies Inc. | System and method for synchronizing an optical source and a router in a wavelength division multiplexed fiber optic network |
US6061158A (en) * | 1997-11-04 | 2000-05-09 | Trw Inc. | High capacity wavelength division multiplexer |
US5956356A (en) * | 1997-12-08 | 1999-09-21 | Lucent Technologies Inc. | Monitoring wavelength of laser devices |
US6370169B1 (en) | 1998-04-22 | 2002-04-09 | Nippon Telegraph & Telephone Corporation | Method and apparatus for controlling optical wavelength based on optical frequency pulling |
EP1149443A4 (en) | 1998-09-11 | 2006-03-22 | New Focus Inc | TUNABLE LASER |
WO2000023764A1 (en) | 1998-10-16 | 2000-04-27 | New Focus, Inc. | Interferometer for optical wavelength monitoring |
ATE359676T1 (de) * | 1999-06-30 | 2007-05-15 | Tno | Verfahren und kodier-/dekodier-anordnung zur bewertung der bildqualität von reproduzierten bilddaten |
US6853654B2 (en) * | 1999-07-27 | 2005-02-08 | Intel Corporation | Tunable external cavity laser |
US6879619B1 (en) | 1999-07-27 | 2005-04-12 | Intel Corporation | Method and apparatus for filtering an optical beam |
WO2001011739A1 (en) | 1999-08-10 | 2001-02-15 | Coretek, Inc. | Single etalon optical wavelength reference device |
US6856632B1 (en) | 1999-09-20 | 2005-02-15 | Iolon, Inc. | Widely tunable laser |
US6847661B2 (en) * | 1999-09-20 | 2005-01-25 | Iolon, Inc. | Tunable laser with microactuator |
DE19954036A1 (de) * | 1999-10-29 | 2001-05-10 | Siemens Ag | Verfahren und Anordnung zur Wellenlängenstabilisierung von Licht |
US7209498B1 (en) | 2000-05-04 | 2007-04-24 | Intel Corporation | Method and apparatus for tuning a laser |
US6631019B1 (en) | 2000-07-05 | 2003-10-07 | Sri International | Reconfigurable multichannel transmitter for dense wavelength division multiplexing (DWDM) optical communication |
US7120176B2 (en) * | 2000-07-27 | 2006-10-10 | Intel Corporation | Wavelength reference apparatus and method |
US7315697B2 (en) * | 2000-09-26 | 2008-01-01 | Celight, Inc. | Light source for generating an output signal having spaced apart frequencies |
FR2820246B1 (fr) * | 2001-01-26 | 2005-06-17 | Algety Telecom | Dispositif et procede d'asservissement de sources optiques |
US6658031B2 (en) * | 2001-07-06 | 2003-12-02 | Intel Corporation | Laser apparatus with active thermal tuning of external cavity |
US6804278B2 (en) | 2001-07-06 | 2004-10-12 | Intel Corporation | Evaluation and adjustment of laser losses according to voltage across gain medium |
US6724797B2 (en) | 2001-07-06 | 2004-04-20 | Intel Corporation | External cavity laser with selective thermal control |
US6901088B2 (en) * | 2001-07-06 | 2005-05-31 | Intel Corporation | External cavity laser apparatus with orthogonal tuning of laser wavelength and cavity optical pathlength |
US6822979B2 (en) | 2001-07-06 | 2004-11-23 | Intel Corporation | External cavity laser with continuous tuning of grid generator |
US7230959B2 (en) | 2002-02-22 | 2007-06-12 | Intel Corporation | Tunable laser with magnetically coupled filter |
US20090323734A1 (en) * | 2004-12-16 | 2009-12-31 | Vectronix Ag | Not temperature stabilized pulsed laser diode and all fibre power amplifier |
JPWO2007007848A1 (ja) * | 2005-07-13 | 2009-01-29 | 日本電気株式会社 | 外部共振器型波長可変レーザ及びその実装方法 |
US7583711B2 (en) * | 2006-03-17 | 2009-09-01 | Lockheed Martin Coherent Technologies, Inc. | Apparatus and method for stabilizing the frequency of lasers |
GB2445956B (en) * | 2007-01-26 | 2009-12-02 | Valtion Teknillinen | A spectrometer and a method for controlling the spectrometer |
CN101674135A (zh) * | 2008-09-09 | 2010-03-17 | 华为技术有限公司 | 滤波锁定方法、装置 |
JP5831206B2 (ja) * | 2011-12-21 | 2015-12-09 | 富士通株式会社 | 光スイッチ素子、光復調器、光復調方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3967211A (en) * | 1974-01-17 | 1976-06-29 | Jersey Nuclear-Avco Isotopes, Inc. | Laser wavelength stabilization |
US4081765A (en) * | 1976-06-03 | 1978-03-28 | Coherent, Inc. | Method and apparatus for providing a calibrated scan for a scanning laser |
US4092070A (en) * | 1976-10-26 | 1978-05-30 | Lansing Research Corporation | Tuning of etalons in spectroscopic apparatus |
US4096448A (en) * | 1977-01-12 | 1978-06-20 | Rockwell International Corporation | Phase-locking of independent laser oscillators |
US4150342A (en) * | 1977-07-05 | 1979-04-17 | Coherent, Inc. | Method and apparatus for automatically reacquiring a predetermined output radiation frequency in a tunable laser system despite momentary perturbations of laser oscillation |
DE2862391D1 (de) * | 1977-10-26 | 1984-04-26 | Post Office | Control apparatus for a semi-conductor laser device |
JPS59140B2 (ja) * | 1979-01-13 | 1984-01-05 | 日本電信電話株式会社 | 半導体レ−ザ装置 |
GB2043240A (en) * | 1979-03-01 | 1980-10-01 | Post Office | Improvements in or relating to the switching of signals |
US4410992A (en) * | 1980-03-26 | 1983-10-18 | Laser Science, Inc. | Generation of pulsed laser radiation at a finely controlled frequency by transient regerative amplification |
EP0108562A1 (en) * | 1982-11-05 | 1984-05-16 | British Telecommunications | Controlling lasers |
US4672618A (en) * | 1983-03-07 | 1987-06-09 | Beckman Instruments, Inc. | Laser stabilization servo system |
US4592043A (en) * | 1983-07-08 | 1986-05-27 | At&T Bell Laboratories | Wavelength division multiplexing optical communications systems |
US4771431A (en) * | 1985-08-30 | 1988-09-13 | Konishiroku Photo Industry Co., Ltd. | Semiconductor laser drive |
US4719635A (en) * | 1986-02-10 | 1988-01-12 | Rockwell International Corporation | Frequency and phase locking method for laser array |
-
1985
- 1985-09-16 GB GB858522821A patent/GB8522821D0/en active Pending
-
1986
- 1986-09-15 CA CA000518227A patent/CA1251831A/en not_active Expired
- 1986-09-16 ES ES8602290A patent/ES2002779A6/es not_active Expired
- 1986-09-16 WO PCT/GB1986/000553 patent/WO1987001874A1/en active IP Right Grant
- 1986-09-16 US US07/071,341 patent/US4839614A/en not_active Expired - Lifetime
- 1986-09-16 EP EP86905374A patent/EP0240512B1/en not_active Expired - Lifetime
- 1986-09-16 JP JP61504900A patent/JPS63500973A/ja active Granted
- 1986-09-16 DE DE8686905374T patent/DE3676688D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0553314B2 (es) | 1993-08-09 |
EP0240512B1 (en) | 1990-12-27 |
US4839614A (en) | 1989-06-13 |
DE3676688D1 (de) | 1991-02-07 |
JPS63500973A (ja) | 1988-04-07 |
CA1251831A (en) | 1989-03-28 |
WO1987001874A1 (en) | 1987-03-26 |
GB8522821D0 (en) | 1985-10-23 |
EP0240512A1 (en) | 1987-10-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SA6 | Expiration date (snapshot 920101) |
Free format text: 2006-09-16 |