FR2430598A1 - Gyroscope a laser en anneau - Google Patents

Gyroscope a laser en anneau

Info

Publication number
FR2430598A1
FR2430598A1 FR7819781A FR7819781A FR2430598A1 FR 2430598 A1 FR2430598 A1 FR 2430598A1 FR 7819781 A FR7819781 A FR 7819781A FR 7819781 A FR7819781 A FR 7819781A FR 2430598 A1 FR2430598 A1 FR 2430598A1
Authority
FR
France
Prior art keywords
reflecting mirror
ring laser
mirror surfaces
mode ring
incident angles
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Withdrawn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
FR7819781A
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.)
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
Priority to FR7819781A priority Critical patent/FR2430598A1/fr
Publication of FR2430598A1 publication Critical patent/FR2430598A1/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Withdrawn legal-status Critical Current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
    • G01C19/667—Ring laser gyrometers using a multioscillator ring laser
    • 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

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)
  • Plasma & Fusion (AREA)
  • Gyroscopes (AREA)

Abstract

L'invention concerne les gyroscopes à laser en anneau. Un gyroscope à laser en anneau comprend des surfaces réfléchissantes 24, 26, 28 et 30 qui sont placées aux sommets d'un tétraèdre. Cette configuration permet d'obtenir des angles d'incidence plus faibles sur chaque miroir, ce qui réduit les effets des caractéristiques d'anisotropie de phase de ces surfaces réfléchissantes, En outre, en utilisant des surfaces réfléchissantes provenant d'un même lot de fabrication, on obtient des caractéristiques d'anisotropie de phase pratiquement identiques dont les effets s'annulent au cours des réflexions successives sur les différentes surfaces réfléchissantes. Application aux systèmes de guidage par inertie.
FR7819781A 1978-07-03 1978-07-03 Gyroscope a laser en anneau Withdrawn FR2430598A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7819781A FR2430598A1 (fr) 1978-07-03 1978-07-03 Gyroscope a laser en anneau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7819781A FR2430598A1 (fr) 1978-07-03 1978-07-03 Gyroscope a laser en anneau

Publications (1)

Publication Number Publication Date
FR2430598A1 true FR2430598A1 (fr) 1980-02-01

Family

ID=9210247

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7819781A Withdrawn FR2430598A1 (fr) 1978-07-03 1978-07-03 Gyroscope a laser en anneau

Country Status (1)

Country Link
FR (1) FR2430598A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454203A1 (fr) * 1978-12-26 1980-11-07 Litton Systems Inc Laser isotrope non plan a anneau
FR2478810A1 (fr) * 1980-03-24 1981-09-25 Litton Systems Inc Gyroscope a laser en anneau
EP0040004A1 (fr) * 1980-05-09 1981-11-18 British Aerospace Public Limited Company Gyroscope à laser en anneau
FR2549953A1 (fr) * 1983-07-29 1985-02-01 Sundstrand Optical Tech Montage de cathode dans un gyroscope a laser en anneau
RU2731171C1 (ru) * 2019-10-01 2020-08-31 федеральное государственное автономное образовательное учреждение высшего образования "Московский физико-технический институт (национальный исследовательский университет)" Четырехчастотный лазерный гироскоп зеемановского типа

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6601749A (fr) * 1966-02-11 1967-08-14
NL7614434A (nl) * 1976-01-02 1977-07-05 Raytheon Co Elektromagnetische golfresonator.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6601749A (fr) * 1966-02-11 1967-08-14
NL7614434A (nl) * 1976-01-02 1977-07-05 Raytheon Co Elektromagnetische golfresonator.
FR2337447A1 (fr) * 1976-01-02 1977-07-29 Raytheon Co Resonateur en anneau pour ondes electromagnetiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV2219/71 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454203A1 (fr) * 1978-12-26 1980-11-07 Litton Systems Inc Laser isotrope non plan a anneau
FR2478810A1 (fr) * 1980-03-24 1981-09-25 Litton Systems Inc Gyroscope a laser en anneau
EP0040004A1 (fr) * 1980-05-09 1981-11-18 British Aerospace Public Limited Company Gyroscope à laser en anneau
FR2549953A1 (fr) * 1983-07-29 1985-02-01 Sundstrand Optical Tech Montage de cathode dans un gyroscope a laser en anneau
DE3425916A1 (de) * 1983-07-29 1985-02-14 Sundstrand Optical Technologies, Inc., Newbury Park, Calif. Katodenanordnung fuer ringlaser-gyroskop
RU2731171C1 (ru) * 2019-10-01 2020-08-31 федеральное государственное автономное образовательное учреждение высшего образования "Московский физико-технический институт (национальный исследовательский университет)" Четырехчастотный лазерный гироскоп зеемановского типа

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Legal Events

Date Code Title Description
ST Notification of lapse