FR2430108A1 - Laser a anneau et procede d'isolement d'ondes se propageant en sens inverse - Google Patents

Laser a anneau et procede d'isolement d'ondes se propageant en sens inverse

Info

Publication number
FR2430108A1
FR2430108A1 FR7915970A FR7915970A FR2430108A1 FR 2430108 A1 FR2430108 A1 FR 2430108A1 FR 7915970 A FR7915970 A FR 7915970A FR 7915970 A FR7915970 A FR 7915970A FR 2430108 A1 FR2430108 A1 FR 2430108A1
Authority
FR
France
Prior art keywords
ring laser
wave propagation
propagation method
reverse wave
separation
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.)
Withdrawn
Application number
FR7915970A
Other languages
English (en)
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.)
Boeing North American Inc
Original Assignee
Rockwell International Corp
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 Rockwell International Corp filed Critical Rockwell International Corp
Publication of FR2430108A1 publication Critical patent/FR2430108A1/fr
Withdrawn legal-status Critical Current

Links

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
    • G01C19/66—Ring laser gyrometers
    • G01C19/68—Lock-in prevention

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Lasers (AREA)
  • Gyroscopes (AREA)

Abstract

L'invention concerne les lasers à anneaux. Elle se rapporte à un laser à anneau ayant une cavité optique placée sur un trajet optique fermé, ce trajet comprenant un dispositif d'amplification de lumière placé dans la cavité optique afin que des ondes lumineuses polarisées de manière analogue puissent se propager en sens inverses le long du trajet optique. Un élément bipolaire présentant des pertes non réciproques empêche la propagation collinéaire des deux ondes lumineuses, soit par séparation dans l'espace, soit par séparation dans le temps. Application aux lasers à anneau des gyroscopes.
FR7915970A 1978-06-22 1979-06-21 Laser a anneau et procede d'isolement d'ondes se propageant en sens inverse Withdrawn FR2430108A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/918,305 US4219275A (en) 1978-06-22 1978-06-22 Ring laser having magnetic isolation of counter-propagating light waves

Publications (1)

Publication Number Publication Date
FR2430108A1 true FR2430108A1 (fr) 1980-01-25

Family

ID=25440158

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7915970A Withdrawn FR2430108A1 (fr) 1978-06-22 1979-06-21 Laser a anneau et procede d'isolement d'ondes se propageant en sens inverse

Country Status (5)

Country Link
US (1) US4219275A (fr)
JP (1) JPS5526695A (fr)
CA (1) CA1115397A (fr)
FR (1) FR2430108A1 (fr)
GB (1) GB2023919B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2075210B (en) * 1980-04-29 1983-11-23 Sperry Ltd Magneto-optical phase-modulating device
US4519708A (en) * 1981-05-20 1985-05-28 Raytheon Company Mode discrimination apparatus
US4521110A (en) * 1982-12-13 1985-06-04 The United States Of America As Represented By The Secretary Of The Army Dual cavity laser gyro
US4698823A (en) * 1984-09-12 1987-10-06 Litton Systems Inc. System for reducing the sensitivity of a ring laser gyro to changes in a magnetic field
US4647204A (en) * 1985-08-16 1987-03-03 The United States Of America As Represented By The Secretary Of The Army Compensated dual cavity laser gyro
US5283801A (en) * 1992-05-26 1994-02-01 Trw Inc. External resonant ring cavity for generating high-peak-power laser pulses
FR2863702B1 (fr) * 2003-12-12 2006-03-03 Thales Sa Gyrolaser a etat solide stabilise et a milieu laser anisotrope
US6965472B2 (en) * 2004-03-22 2005-11-15 Raytheon Company Nonreciprocal optical element with independent control of transmission opposite directions
US10180325B2 (en) * 2016-04-22 2019-01-15 The Regents Of The University Of California Orthogonal-mode laser gyroscope
CN109100077A (zh) * 2016-05-09 2018-12-28 南昌见诚科技有限公司 一种幕墙工程中使用的风力测量仪

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862803A (en) * 1968-09-27 1975-01-28 United Aircraft Corp Differential laser gyro system
US3892486A (en) * 1973-04-23 1975-07-01 United Aircraft Corp Sequentially switched laser gyro

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414839A (en) * 1965-06-18 1968-12-03 Bell Telephone Labor Inc Unidirectional ring laser
US3508166A (en) * 1967-10-09 1970-04-21 Trw Inc Passive optical isolator
DE2044575A1 (de) * 1970-09-09 1972-03-16 Deutsche Forsch Luft Raumfahrt Ringinterferometer - Anordnung zur schnellen Messung von Winkelgeschwindigkeiten
US3854819A (en) * 1971-03-03 1974-12-17 K Andringa Laser gyroscope
US3741657A (en) * 1971-03-03 1973-06-26 Raytheon Co Laser gyroscope
US3757247A (en) * 1972-06-22 1973-09-04 Us Navy Frequency selective optical isolator
US3826575A (en) * 1973-06-25 1974-07-30 Us Navy High performance ring laser gyroscope with magneto-optical bias

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862803A (en) * 1968-09-27 1975-01-28 United Aircraft Corp Differential laser gyro system
US3892486A (en) * 1973-04-23 1975-07-01 United Aircraft Corp Sequentially switched laser gyro

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/78 *

Also Published As

Publication number Publication date
CA1115397A (fr) 1981-12-29
GB2023919A (en) 1980-01-03
GB2023919B (en) 1982-07-21
JPS5526695A (en) 1980-02-26
US4219275A (en) 1980-08-26

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Legal Events

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ST Notification of lapse