GB2201256B - Devices for controlling the frequency of an optical signal output from an optical signal source - Google Patents

Devices for controlling the frequency of an optical signal output from an optical signal source

Info

Publication number
GB2201256B
GB2201256B GB8729959A GB8729959A GB2201256B GB 2201256 B GB2201256 B GB 2201256B GB 8729959 A GB8729959 A GB 8729959A GB 8729959 A GB8729959 A GB 8729959A GB 2201256 B GB2201256 B GB 2201256B
Authority
GB
United Kingdom
Prior art keywords
optical signal
frequency
controlling
devices
signal output
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
GB8729959A
Other versions
GB2201256A (en
GB8729959D0 (en
Inventor
Keith E Wilson
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.)
Northrop Grumman Guidance and Electronics Co Inc
Original Assignee
Litton Systems Inc
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 Litton Systems Inc filed Critical Litton Systems Inc
Publication of GB8729959D0 publication Critical patent/GB8729959D0/en
Publication of GB2201256A publication Critical patent/GB2201256A/en
Application granted granted Critical
Publication of GB2201256B publication Critical patent/GB2201256B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference
    • G02F1/225—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference in an optical waveguide structure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/58—Turn-sensitive devices without moving masses
    • G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
    • G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
    • G01C19/721—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
GB8729959A 1987-02-20 1987-12-23 Devices for controlling the frequency of an optical signal output from an optical signal source Expired - Fee Related GB2201256B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1742587A 1987-02-20 1987-02-20

Publications (3)

Publication Number Publication Date
GB8729959D0 GB8729959D0 (en) 1988-02-03
GB2201256A GB2201256A (en) 1988-08-24
GB2201256B true GB2201256B (en) 1990-11-14

Family

ID=21782517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8729959A Expired - Fee Related GB2201256B (en) 1987-02-20 1987-12-23 Devices for controlling the frequency of an optical signal output from an optical signal source

Country Status (2)

Country Link
CA (1) CA1274010A (en)
GB (1) GB2201256B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2216652B (en) * 1988-03-09 1992-09-02 British Aerospace Apparatus and method for determining the wavelength of optical radiation and optical apparatus employing said apparatus and method
US5046848A (en) * 1989-09-08 1991-09-10 Mcdonnell Douglas Corporation Fiber optic detection system using a Sagnac interferometer
DE59008904D1 (en) * 1990-06-07 1995-05-18 Litef Gmbh Integrated optical device for interferometric measurement of light waves.
US5404222A (en) * 1994-01-14 1995-04-04 Sparta, Inc. Interferametric measuring system with air turbulence compensation
US5991033A (en) * 1996-09-20 1999-11-23 Sparta, Inc. Interferometer with air turbulence compensation
EP1631856B1 (en) * 2003-05-09 2017-11-22 Finisar Corporation Optical devices with cascaded liquid crystal elements
US11320267B2 (en) 2017-03-23 2022-05-03 Kvh Industries, Inc. Integrated optic wavemeter and method for fiber optic gyroscopes scale factor stabilization
US11092748B2 (en) 2017-09-15 2021-08-17 Kvh Industries, Inc. Method and apparatus for self-alignment connection of optical fiber to waveguide of photonic integrated circuit
WO2020077216A1 (en) 2018-10-11 2020-04-16 Kvh Industries, Inc. Photonic integrated circuits, fiber optic gyroscopes and methods for making the same
US11353655B2 (en) 2019-05-22 2022-06-07 Kvh Industries, Inc. Integrated optical polarizer and method of making same
US10921682B1 (en) 2019-08-16 2021-02-16 Kvh Industries, Inc. Integrated optical phase modulator and method of making same

Also Published As

Publication number Publication date
GB2201256A (en) 1988-08-24
GB8729959D0 (en) 1988-02-03
CA1274010A (en) 1990-09-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19951223