FR2475220A1 - Dispositif de detection d'ondes electromagnetiques, typiquement lumineuses, en quadrature de phase avec balance heterodyne. application aux velocimetres doppler et gyrometres sagnac - Google Patents

Dispositif de detection d'ondes electromagnetiques, typiquement lumineuses, en quadrature de phase avec balance heterodyne. application aux velocimetres doppler et gyrometres sagnac Download PDF

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Publication number
FR2475220A1
FR2475220A1 FR8002225A FR8002225A FR2475220A1 FR 2475220 A1 FR2475220 A1 FR 2475220A1 FR 8002225 A FR8002225 A FR 8002225A FR 8002225 A FR8002225 A FR 8002225A FR 2475220 A1 FR2475220 A1 FR 2475220A1
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FR
France
Prior art keywords
beams
primary
plane
semi
cube
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.)
Granted
Application number
FR8002225A
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English (en)
French (fr)
Other versions
FR2475220B1 (enExample
Inventor
Jean-Loup Lesne
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.)
Electricite de France SA
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Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Priority to FR8002225A priority Critical patent/FR2475220A1/fr
Publication of FR2475220A1 publication Critical patent/FR2475220A1/fr
Application granted granted Critical
Publication of FR2475220B1 publication Critical patent/FR2475220B1/fr
Granted legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/04—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by beating two waves of a same source but of different frequency and measuring the phase shift of the lower frequency obtained

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
FR8002225A 1980-02-01 1980-02-01 Dispositif de detection d'ondes electromagnetiques, typiquement lumineuses, en quadrature de phase avec balance heterodyne. application aux velocimetres doppler et gyrometres sagnac Granted FR2475220A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8002225A FR2475220A1 (fr) 1980-02-01 1980-02-01 Dispositif de detection d'ondes electromagnetiques, typiquement lumineuses, en quadrature de phase avec balance heterodyne. application aux velocimetres doppler et gyrometres sagnac

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8002225A FR2475220A1 (fr) 1980-02-01 1980-02-01 Dispositif de detection d'ondes electromagnetiques, typiquement lumineuses, en quadrature de phase avec balance heterodyne. application aux velocimetres doppler et gyrometres sagnac

Publications (2)

Publication Number Publication Date
FR2475220A1 true FR2475220A1 (fr) 1981-08-07
FR2475220B1 FR2475220B1 (enExample) 1982-12-03

Family

ID=9238105

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8002225A Granted FR2475220A1 (fr) 1980-02-01 1980-02-01 Dispositif de detection d'ondes electromagnetiques, typiquement lumineuses, en quadrature de phase avec balance heterodyne. application aux velocimetres doppler et gyrometres sagnac

Country Status (1)

Country Link
FR (1) FR2475220A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526938A1 (fr) * 1982-05-12 1983-11-18 Hitachi Cable Gyroscope a laser a fibre optique
EP0113889A3 (en) * 1982-12-18 1985-01-09 International Standard Electric Corporation Rotation speed measuring apparatus
EP0096416A3 (en) * 1982-06-09 1986-03-19 Sumitomo Electric Industries Limited Optical fiber gyro
US4949345A (en) * 1989-06-30 1990-08-14 Microelectronics And Computer Technology Corporation Method and apparatus for reducing the effect of random polarization on the power/energy output of lasers
US5204866A (en) * 1990-10-15 1993-04-20 International Business Machines Corporation Bidirectional free-space optical bus for electronics systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006989A (en) * 1972-10-02 1977-02-08 Raytheon Company Laser gyroscope
FR2422142A2 (fr) * 1978-04-04 1979-11-02 Siemens Ag Interferometre comportant une bobine formee d'un guide d'ondes monomode

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006989A (en) * 1972-10-02 1977-02-08 Raytheon Company Laser gyroscope
FR2422142A2 (fr) * 1978-04-04 1979-11-02 Siemens Ag Interferometre comportant une bobine formee d'un guide d'ondes monomode

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/74 *
EXBK/79 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526938A1 (fr) * 1982-05-12 1983-11-18 Hitachi Cable Gyroscope a laser a fibre optique
EP0096416A3 (en) * 1982-06-09 1986-03-19 Sumitomo Electric Industries Limited Optical fiber gyro
EP0113889A3 (en) * 1982-12-18 1985-01-09 International Standard Electric Corporation Rotation speed measuring apparatus
US4949345A (en) * 1989-06-30 1990-08-14 Microelectronics And Computer Technology Corporation Method and apparatus for reducing the effect of random polarization on the power/energy output of lasers
US5204866A (en) * 1990-10-15 1993-04-20 International Business Machines Corporation Bidirectional free-space optical bus for electronics systems

Also Published As

Publication number Publication date
FR2475220B1 (enExample) 1982-12-03

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