DE3676688D1 - Frequenzreferenzsystem und -methode. - Google Patents

Frequenzreferenzsystem und -methode.

Info

Publication number
DE3676688D1
DE3676688D1 DE8686905374T DE3676688T DE3676688D1 DE 3676688 D1 DE3676688 D1 DE 3676688D1 DE 8686905374 T DE8686905374 T DE 8686905374T DE 3676688 T DE3676688 T DE 3676688T DE 3676688 D1 DE3676688 D1 DE 3676688D1
Authority
DE
Germany
Prior art keywords
reference system
frequency reference
frequency
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
DE8686905374T
Other languages
English (en)
Inventor
Richard Hill
David William Smith
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of DE3676688D1 publication Critical patent/DE3676688D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50Transmitters
    • H04B10/501Structural aspects
    • H04B10/506Multiwavelength transmitters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES 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
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/23Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2383Parallel arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES 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
    • H01S5/00Semiconductor lasers
    • H01S5/40Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025Array arrangements, e.g. constituted by discrete laser diodes or laser bar
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50Transmitters
    • H04B10/572Wavelength control
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES 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
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068Stabilisation of laser output parameters
    • H01S5/0683Stabilisation of laser output parameters by monitoring the optical output parameters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES 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
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068Stabilisation of laser output parameters
    • H01S5/0683Stabilisation of laser output parameters by monitoring the optical output parameters
    • H01S5/0687Stabilising the frequency of the laser
DE8686905374T 1985-09-16 1986-09-16 Frequenzreferenzsystem und -methode. Expired - Fee Related DE3676688D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858522821A GB8522821D0 (en) 1985-09-16 1985-09-16 Frequency referencing system
PCT/GB1986/000553 WO1987001874A1 (en) 1985-09-16 1986-09-16 Frequency referencing system and method

Publications (1)

Publication Number Publication Date
DE3676688D1 true DE3676688D1 (de) 1991-02-07

Family

ID=10585221

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686905374T Expired - Fee Related DE3676688D1 (de) 1985-09-16 1986-09-16 Frequenzreferenzsystem und -methode.

Country Status (8)

Country Link
US (1) US4839614A (de)
EP (1) EP0240512B1 (de)
JP (1) JPS63500973A (de)
CA (1) CA1251831A (de)
DE (1) DE3676688D1 (de)
ES (1) ES2002779A6 (de)
GB (1) GB8522821D0 (de)
WO (1) WO1987001874A1 (de)

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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
DE69023768T2 (de) * 1990-09-11 1996-05-23 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
DE59505311D1 (de) * 1994-08-19 1999-04-15 Leica Geosystems Ag Stabilisierte multifrequenz-lichtquelle sowie verfahren zur erzeugung von synthetischer lichtwellenlänge
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
WO2000016453A1 (en) 1998-09-11 2000-03-23 New Focus, Inc. Tunable laser
AU1905400A (en) 1998-10-16 2000-05-08 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
US6724797B2 (en) 2001-07-06 2004-04-20 Intel Corporation External cavity laser with selective thermal control
US6804278B2 (en) 2001-07-06 2004-10-12 Intel Corporation Evaluation and adjustment of laser losses according to voltage across gain medium
US6822979B2 (en) 2001-07-06 2004-11-23 Intel Corporation External cavity laser with continuous tuning of grid generator
US6901088B2 (en) * 2001-07-06 2005-05-31 Intel Corporation External cavity laser apparatus with orthogonal tuning of laser wavelength and cavity optical pathlength
US7230959B2 (en) 2002-02-22 2007-06-12 Intel Corporation Tunable laser with magnetically coupled filter
WO2006063474A1 (en) * 2004-12-16 2006-06-22 Vectronix Ag Not temperature stabilized pulsed laser diode and all fibre power amplifier
US20090257460A1 (en) * 2005-07-13 2009-10-15 Nec Corporation External resonator variable wavelength laser and its packaging method
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

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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
EP0001714B1 (de) * 1977-10-26 1984-03-21 The Post Office Steuerapparat für eine Halbleiter-Laservorrichtung
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
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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
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US4719635A (en) * 1986-02-10 1988-01-12 Rockwell International Corporation Frequency and phase locking method for laser array

Also Published As

Publication number Publication date
EP0240512B1 (de) 1990-12-27
WO1987001874A1 (en) 1987-03-26
JPS63500973A (ja) 1988-04-07
GB8522821D0 (en) 1985-10-23
CA1251831A (en) 1989-03-28
JPH0553314B2 (de) 1993-08-09
EP0240512A1 (de) 1987-10-14
US4839614A (en) 1989-06-13
ES2002779A6 (es) 1988-10-01

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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