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GB2226127B - Optical frequency monitor - Google Patents

Optical frequency monitor

Info

Publication number
GB2226127B
GB2226127B GB8829333A GB8829333A GB2226127B GB 2226127 B GB2226127 B GB 2226127B GB 8829333 A GB8829333 A GB 8829333A GB 8829333 A GB8829333 A GB 8829333A GB 2226127 B GB2226127 B GB 2226127B
Authority
GB
United Kingdom
Prior art keywords
optical frequency
frequency monitor
monitor
optical
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
Application number
GB8829333A
Other versions
GB8829333D0 (en
GB2226127A (en
Inventor
Jonathan Paul King
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.)
STC PLC
Nortel Networks Optical Components Ltd
Original Assignee
STC PLC
Northern Telecom Europe 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
Application filed by STC PLC, Northern Telecom Europe Ltd filed Critical STC PLC
Priority to GB8829333A priority Critical patent/GB2226127B/en
Publication of GB8829333D0 publication Critical patent/GB8829333D0/en
Publication of GB2226127A publication Critical patent/GB2226127A/en
Application granted granted Critical
Publication of GB2226127B publication Critical patent/GB2226127B/en
Expired legal-status Critical Current

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
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • 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
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • 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
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/67—Optical arrangements in the receiver

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
GB8829333A 1988-12-16 1988-12-16 Optical frequency monitor Expired GB2226127B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8829333A GB2226127B (en) 1988-12-16 1988-12-16 Optical frequency monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8829333A GB2226127B (en) 1988-12-16 1988-12-16 Optical frequency monitor

Publications (3)

Publication Number Publication Date
GB8829333D0 GB8829333D0 (en) 1989-02-01
GB2226127A GB2226127A (en) 1990-06-20
GB2226127B true GB2226127B (en) 1992-07-29

Family

ID=10648577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8829333A Expired GB2226127B (en) 1988-12-16 1988-12-16 Optical frequency monitor

Country Status (1)

Country Link
GB (1) GB2226127B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5796096A (en) * 1991-07-26 1998-08-18 Accuwave Corporation Fabrication and applications of long-lifetime, holographic gratings in photorefractive materials
US5440669A (en) * 1991-07-26 1995-08-08 Accuwave Corporation Photorefractive systems and methods
US5691989A (en) * 1991-07-26 1997-11-25 Accuwave Corporation Wavelength stabilized laser sources using feedback from volume holograms
US5491570A (en) * 1991-07-26 1996-02-13 Accuwave Corporation Methods and devices for using photorefractive materials at infrared wavelengths
WO1993003427A2 (en) * 1991-07-26 1993-02-18 Accuwave Corporation Photorefractive systems and methods
US5299212A (en) 1993-03-10 1994-03-29 At&T Bell Laboratories Article comprising a wavelength-stabilized semiconductor laser
GB2312346B (en) * 1996-04-20 2000-07-12 Northern Telecom Ltd Marshalling in optical tdma systems
JPH109961A (en) * 1996-06-21 1998-01-16 Kokusai Denshin Denwa Co Ltd <Kdd> Optical wavelength monitoring device
IL121509A (en) * 1997-08-11 2000-02-17 Eci Telecom Ltd Device and method for monitoring and controlling laser wavelength
IL121510A (en) * 1997-08-11 2000-02-17 Eci Telecom Ltd Optical communications system
DE19744565C2 (en) * 1997-10-09 2000-02-03 Zeiss Optronik Gmbh Wavelength measuring device for short laser pulses
JP3317896B2 (en) * 1998-04-24 2002-08-26 日本電気株式会社 Laser oscillation wavelength monitor
GB2353858A (en) * 1999-09-01 2001-03-07 Bookham Technology Ltd Optical wavelength measuring device using integrated optics and photodiodes
EP2286193A1 (en) * 2008-05-27 2011-02-23 Nxp B.V. Light sensor device and manufacturing method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1423290A (en) * 1973-09-03 1976-02-04 Alcan Res & Dev Two-colour radiation pyrometer
GB2084718A (en) * 1980-09-26 1982-04-15 Vanzetti Infrared Computer Sys Band-ratio radiometer
GB2156071A (en) * 1984-03-15 1985-10-02 Williamson Corp Temperature measuring apparatus
GB2177196A (en) * 1985-06-18 1987-01-14 Negretti Aviat Ltd Improvements in means for detection and/or compensation for changes in the optical gain of a pyrometer
GB2183027A (en) * 1985-11-14 1987-05-28 United Technologies Corp An optical pyrometer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1423290A (en) * 1973-09-03 1976-02-04 Alcan Res & Dev Two-colour radiation pyrometer
GB2084718A (en) * 1980-09-26 1982-04-15 Vanzetti Infrared Computer Sys Band-ratio radiometer
GB2156071A (en) * 1984-03-15 1985-10-02 Williamson Corp Temperature measuring apparatus
GB2177196A (en) * 1985-06-18 1987-01-14 Negretti Aviat Ltd Improvements in means for detection and/or compensation for changes in the optical gain of a pyrometer
GB2183027A (en) * 1985-11-14 1987-05-28 United Technologies Corp An optical pyrometer

Also Published As

Publication number Publication date
GB8829333D0 (en) 1989-02-01
GB2226127A (en) 1990-06-20

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20071216