FR2438357B1 - - Google Patents

Info

Publication number
FR2438357B1
FR2438357B1 FR7924079A FR7924079A FR2438357B1 FR 2438357 B1 FR2438357 B1 FR 2438357B1 FR 7924079 A FR7924079 A FR 7924079A FR 7924079 A FR7924079 A FR 7924079A FR 2438357 B1 FR2438357 B1 FR 2438357B1
Authority
FR
France
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
FR7924079A
Other languages
French (fr)
Other versions
FR2438357A1 (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.)
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 FR2438357A1 publication Critical patent/FR2438357A1/en
Application granted granted Critical
Publication of FR2438357B1 publication Critical patent/FR2438357B1/fr
Granted 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
    • G01C19/661—Ring laser gyrometers details
    • 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/083—Ring lasers
    • 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/083—Ring lasers
    • H01S3/0835—Gas ring lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Plasma & Fusion (AREA)
  • Gyroscopes (AREA)
  • Lasers (AREA)
FR7924079A 1978-10-02 1979-09-27 RING LASER FOR A GYROSCOPE AND ITS ADJUSTMENT METHOD Granted FR2438357A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US94735578A 1978-10-02 1978-10-02

Publications (2)

Publication Number Publication Date
FR2438357A1 FR2438357A1 (en) 1980-04-30
FR2438357B1 true FR2438357B1 (en) 1984-02-17

Family

ID=25486010

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7924079A Granted FR2438357A1 (en) 1978-10-02 1979-09-27 RING LASER FOR A GYROSCOPE AND ITS ADJUSTMENT METHOD

Country Status (9)

Country Link
JP (2) JPS584475B2 (en)
CA (1) CA1133615A (en)
CH (1) CH651157A5 (en)
DE (1) DE2939804A1 (en)
FR (1) FR2438357A1 (en)
GB (1) GB2032169B (en)
IL (1) IL57936A (en)
IT (1) IT1164049B (en)
SE (1) SE449664B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519708A (en) * 1981-05-20 1985-05-28 Raytheon Company Mode discrimination apparatus
IL70499A (en) * 1982-12-27 1988-06-30 Litton Systems Inc Laser cathode
US4672623A (en) * 1985-08-16 1987-06-09 Honeywell Inc. Cathode construction for a laser

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390606A (en) * 1965-03-01 1968-07-02 Honeywell Inc Control apparatus
US3462708A (en) * 1966-11-29 1969-08-19 Sperry Rand Corp Ring laser having a piezoelectric reflector external to the closed loop to cancel a frequency modulation within the loop
US3503005A (en) * 1967-10-17 1970-03-24 Honeywell Inc Ring laser which is biased to permit two equal intensity transition frequencies to be generated in opposite directions
US3581227A (en) * 1968-04-18 1971-05-25 Honeywell Inc Adjustable, thin membrane mirror for use in the stabilization of ring lasers
US3824487A (en) * 1972-05-08 1974-07-16 United Aircraft Corp Unstable ring laser resonators
CA1085031A (en) * 1976-11-08 1980-09-02 Litton Systems, Inc. Laser gyro with phased dithered mirrors
US4115004A (en) * 1976-11-15 1978-09-19 Litton Systems, Inc. Counterbalanced oscillating ring laser gyro

Also Published As

Publication number Publication date
JPS584475B2 (en) 1983-01-26
JPS5910078B2 (en) 1984-03-06
SE449664B (en) 1987-05-11
GB2032169B (en) 1982-09-22
SE7908117L (en) 1980-04-03
IT7950401A0 (en) 1979-09-28
IT1164049B (en) 1987-04-08
FR2438357A1 (en) 1980-04-30
IL57936A (en) 1982-07-30
JPS5821385A (en) 1983-02-08
DE2939804A1 (en) 1980-04-10
CH651157A5 (en) 1985-08-30
GB2032169A (en) 1980-04-30
JPS5548989A (en) 1980-04-08
CA1133615A (en) 1982-10-12

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Legal Events

Date Code Title Description
ST Notification of lapse