FR2377027A1 - PERFECTED LASER GYROSCOPE - Google Patents

PERFECTED LASER GYROSCOPE

Info

Publication number
FR2377027A1
FR2377027A1 FR7800530A FR7800530A FR2377027A1 FR 2377027 A1 FR2377027 A1 FR 2377027A1 FR 7800530 A FR7800530 A FR 7800530A FR 7800530 A FR7800530 A FR 7800530A FR 2377027 A1 FR2377027 A1 FR 2377027A1
Authority
FR
France
Prior art keywords
beams
laser gyroscope
polarization
extracted
perfected
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
FR7800530A
Other languages
French (fr)
Other versions
FR2377027B1 (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.)
Raytheon Co
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Publication of FR2377027A1 publication Critical patent/FR2377027A1/en
Application granted granted Critical
Publication of FR2377027B1 publication Critical patent/FR2377027B1/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
    • G01C19/667—Ring laser gyrometers using a multioscillator ring laser

Landscapes

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

Abstract

L'invention concerne un gyroscope à laser, et plus particulièrement sa structure optique de sortie. Quatre faisceaux de fréquence différente circulent dans des sens opposés dans une cavité. Un miroir diélectrique à transmission partielle extraie une petite partie de chaque faisceau. Les faisceaux extraits sont convertis de polarisation circulaire en polarisation linéaire et sont combinés sur un séparateur de faisceau. Le signal voulu est extrait des faisceaux résultants discriminés par leur polarisation. L'invention s'applique notamment à des gyroscopes robustes et de petites dimensions.The invention relates to a laser gyroscope, and more particularly to its optical output structure. Four beams of different frequencies circulate in opposite directions in a cavity. A partial transmission dielectric mirror extracts a small portion of each beam. The extracted beams are converted from circular polarization to linear polarization and are combined on a beam splitter. The desired signal is extracted from the resulting beams discriminated by their polarization. The invention applies in particular to robust gyroscopes of small dimensions.

FR7800530A 1977-01-10 1978-01-10 PERFECTED LASER GYROSCOPE Granted FR2377027A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75822877A 1977-01-10 1977-01-10

Publications (2)

Publication Number Publication Date
FR2377027A1 true FR2377027A1 (en) 1978-08-04
FR2377027B1 FR2377027B1 (en) 1984-06-15

Family

ID=25050996

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800530A Granted FR2377027A1 (en) 1977-01-10 1978-01-10 PERFECTED LASER GYROSCOPE

Country Status (6)

Country Link
JP (1) JPS5387691A (en)
CA (1) CA1088657A (en)
DE (1) DE2800869A1 (en)
FR (1) FR2377027A1 (en)
GB (1) GB1550579A (en)
IT (1) IT1103568B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1214682B (en) * 1986-05-28 1990-01-18 Selenia Ind Elettroniche MULTIPASS OPTICAL CONFIGURATION OF LASER RADIATION THROUGH A SAME SATURABLE ABSORBER PLACED IN THE OPTICAL CAVITY OF A HIGH OPERATING POWER LASER, USING THE SAME SATURABLE ABSORBER, UNDER Q-SWITCH HOMODE LOCKING

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE689864A (en) * 1965-11-25 1967-05-17
US3682803A (en) * 1969-04-23 1972-08-08 Kao Corp Process for the photochemical sulfoxidation of n-paraffin
FR2271542A1 (en) * 1973-12-27 1975-12-12 Minisini Pierre Rotation measuring ring laser rate gyroscope - has two electro-optics crystals and two sensors for two laser beams

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741657A (en) * 1971-03-03 1973-06-26 Raytheon Co Laser gyroscope

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE689864A (en) * 1965-11-25 1967-05-17
US3682803A (en) * 1969-04-23 1972-08-08 Kao Corp Process for the photochemical sulfoxidation of n-paraffin
FR2271542A1 (en) * 1973-12-27 1975-12-12 Minisini Pierre Rotation measuring ring laser rate gyroscope - has two electro-optics crystals and two sensors for two laser beams

Also Published As

Publication number Publication date
GB1550579A (en) 1979-08-15
IT7847565A0 (en) 1978-01-09
DE2800869C2 (en) 1988-06-23
JPS5387691A (en) 1978-08-02
IT1103568B (en) 1985-10-14
DE2800869A1 (en) 1978-07-13
FR2377027B1 (en) 1984-06-15
CA1088657A (en) 1980-10-28
JPS6138635B2 (en) 1986-08-30

Similar Documents

Publication Publication Date Title
FR2377028A1 (en) LASER GYROSCOPE
ATE128543T1 (en) POLARIZATION OPTICAL ARRANGEMENT.
DE68906032D1 (en) ENHANCEMENT OF OPTICAL SIGNALS.
DE3682806D1 (en) LIGHT SWITCH.
DE58904369D1 (en) POSITION MEASURING DEVICE.
DE3885224D1 (en) Optical scanning device and holographic beam splitter therefor.
KR900006921A (en) Optical pickup device
GB1173772A (en) Improvements in or relating to Vibration Responsive Apparatus
DE68910851D1 (en) Amplification of optical signals.
ATE133818T1 (en) PRODUCTION OF ONDES PORTEUSES OPTIQUES PAR EFFET STIMULE DE DIFFUSION BRILLOUIN
FR2377027A1 (en) PERFECTED LASER GYROSCOPE
JPH01167607U (en)
DE68922246D1 (en) Laser beam aperture.
DE68908495D1 (en) OPTICAL BEAM SPLITTER.
FR2592478A1 (en) LASER GYROSCOPE IN COMPENSATED RING WITH OPTICAL POWER.
FR2422142A2 (en) INTERFEROMETER CONTAINING A COIL SHAPED AS A SINGLE-MODE WAVE GUIDE
EA199900120A1 (en) SUBSTRATE FOR CREATING THREE-DIMENSIONAL IMAGES
WO1988008117A3 (en) Combination beam combiner and beam emitter for ring laser gyroscope
FR2425694A1 (en) DEVICE FOR POINT-BY-POINT EXPLORATION OF AN INFORMATION FACE
JPS6420826A (en) Ophthalmic measuring apparatus
EP0851267A3 (en) Acousto-optic tunable filter
GB1313844A (en) Interferometer
FR2356170A1 (en) OPTICAL COLLIMATOR DEVICE APPLICABLE IN PARTICULAR TO AIRPORT SIGHTS
KR900010898A (en) Ion optical system of focused ion beam system
GB1345204A (en) Interferometer systems for sensing the idsplacement of an object

Legal Events

Date Code Title Description
ST Notification of lapse