IT1113711B - IMPROVEMENT IN FOUR-FREQUENCY LASER GYROSCOPES - Google Patents

IMPROVEMENT IN FOUR-FREQUENCY LASER GYROSCOPES

Info

Publication number
IT1113711B
IT1113711B IT47511/79A IT4751179A IT1113711B IT 1113711 B IT1113711 B IT 1113711B IT 47511/79 A IT47511/79 A IT 47511/79A IT 4751179 A IT4751179 A IT 4751179A IT 1113711 B IT1113711 B IT 1113711B
Authority
IT
Italy
Prior art keywords
improvement
frequency laser
laser gyroscopes
gyroscopes
frequency
Prior art date
Application number
IT47511/79A
Other languages
Italian (it)
Other versions
IT7947511A0 (en
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 IT7947511A0 publication Critical patent/IT7947511A0/en
Application granted granted Critical
Publication of IT1113711B publication Critical patent/IT1113711B/en

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)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
  • Lasers (AREA)
IT47511/79A 1978-01-03 1979-01-02 IMPROVEMENT IN FOUR-FREQUENCY LASER GYROSCOPES IT1113711B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86809678A 1978-01-03 1978-01-03

Publications (2)

Publication Number Publication Date
IT7947511A0 IT7947511A0 (en) 1979-01-02
IT1113711B true IT1113711B (en) 1986-01-20

Family

ID=25351066

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47511/79A IT1113711B (en) 1978-01-03 1979-01-02 IMPROVEMENT IN FOUR-FREQUENCY LASER GYROSCOPES

Country Status (7)

Country Link
JP (1) JPS5498195A (en)
CA (1) CA1116279A (en)
DE (1) DE2900125A1 (en)
FR (1) FR2413635A1 (en)
GB (1) GB2012101B (en)
IT (1) IT1113711B (en)
NL (1) NL189980C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471583A1 (en) * 1979-12-14 1981-06-19 Thomson Csf METHOD AND DEVICE FOR MODULATING THE WAVE PHASE CIRCULATING IN A RING INTERFEROMETER
CA1189600A (en) * 1980-10-17 1985-06-25 Raytheon Company Dispersion equalized ring laser gyroscope
US4397027A (en) * 1981-01-05 1983-08-02 Raytheon Company Self-compensating gas discharge path for laser gyro
GB2120839A (en) * 1982-05-19 1983-12-07 Raytheon Co Ring laser gyroscope
US4616930A (en) * 1983-04-20 1986-10-14 Litton Systems, Inc. Optically biased twin ring laser gyroscope
JPS6068684A (en) * 1983-09-26 1985-04-19 Fujitsu Ltd Laser light source
GB2184285B (en) * 1983-11-07 1990-08-01 Raytheon Co Ring laser gyroscope
US4578793A (en) * 1984-07-13 1986-03-25 The Board Of Trustees Of The Leland Stanford Junior University Solid-state non-planar internally reflecting ring laser
US4962506A (en) * 1988-04-14 1990-10-09 Litton Systems, Inc. Scatter symmetrization in multi-mode ring laser gyros
US5469256A (en) * 1988-07-29 1995-11-21 Litton Systems, Inc. Multipole magnetic geometry for a ring laser gyroscope

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245314A (en) * 1962-06-28 1966-04-12 Bell Telephone Labor Inc Optical rotation devices employing a ferromagnetic chromium trihalide
US3373650A (en) * 1965-04-02 1968-03-19 Honeywell Inc Laser angular rate sensor
US3741657A (en) * 1971-03-03 1973-06-26 Raytheon Co Laser gyroscope
JPS5045904Y2 (en) * 1972-06-07 1975-12-25
DE2335597A1 (en) * 1972-07-17 1974-01-31 North American Rockwell RING LASER GYROSCOPE
JPS4940557A (en) * 1972-08-16 1974-04-16
US3841758A (en) * 1972-09-28 1974-10-15 J Gievers Rotation sensitive retarder
JPS5146340B2 (en) * 1972-12-12 1976-12-08
DE2432479C2 (en) * 1974-07-04 1985-05-30 Sperry Corp., New York, N.Y. Ring laser
JPS5349629Y2 (en) * 1974-10-02 1978-11-29
CA1077602A (en) * 1976-01-02 1980-05-13 Raytheon Company Electromagnetic wave ring resonator

Also Published As

Publication number Publication date
GB2012101B (en) 1982-04-21
CA1116279A (en) 1982-01-12
IT7947511A0 (en) 1979-01-02
NL189980C (en) 1993-09-16
JPS5498195A (en) 1979-08-02
DE2900125A1 (en) 1979-07-12
FR2413635B1 (en) 1984-09-14
FR2413635A1 (en) 1979-07-27
DE2900125C2 (en) 1993-04-01
NL7812668A (en) 1979-07-05
JPH0321889B2 (en) 1991-03-25
NL189980B (en) 1993-04-16
GB2012101A (en) 1979-07-18

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960129