DE3411888C2 - - Google Patents

Info

Publication number
DE3411888C2
DE3411888C2 DE3411888A DE3411888A DE3411888C2 DE 3411888 C2 DE3411888 C2 DE 3411888C2 DE 3411888 A DE3411888 A DE 3411888A DE 3411888 A DE3411888 A DE 3411888A DE 3411888 C2 DE3411888 C2 DE 3411888C2
Authority
DE
Germany
Prior art keywords
laser
cavity
beams
sections
cavities
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.)
Expired
Application number
DE3411888A
Other languages
German (de)
English (en)
Other versions
DE3411888A1 (de
Inventor
Graham John Canoga Park Calif. Us Martin
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 DE3411888A1 publication Critical patent/DE3411888A1/de
Application granted granted Critical
Publication of DE3411888C2 publication Critical patent/DE3411888C2/de
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

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)
DE19843411888 1983-04-20 1984-03-30 Ringlaserrotationsratenmessfuehler Granted DE3411888A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/486,662 US4616930A (en) 1983-04-20 1983-04-20 Optically biased twin ring laser gyroscope

Publications (2)

Publication Number Publication Date
DE3411888A1 DE3411888A1 (de) 1984-10-25
DE3411888C2 true DE3411888C2 (US20090177143A1-20090709-C00008.png) 1988-01-21

Family

ID=23932779

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8409873U Expired DE8409873U1 (de) 1983-04-20 1984-03-30 Ringlaserrotationsratenmeßfühler
DE19843411888 Granted DE3411888A1 (de) 1983-04-20 1984-03-30 Ringlaserrotationsratenmessfuehler

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8409873U Expired DE8409873U1 (de) 1983-04-20 1984-03-30 Ringlaserrotationsratenmeßfühler

Country Status (8)

Country Link
US (1) US4616930A (US20090177143A1-20090709-C00008.png)
JP (1) JPS59200479A (US20090177143A1-20090709-C00008.png)
CA (1) CA1212748A (US20090177143A1-20090709-C00008.png)
DE (2) DE8409873U1 (US20090177143A1-20090709-C00008.png)
FR (1) FR2544858B1 (US20090177143A1-20090709-C00008.png)
GB (1) GB2138625B (US20090177143A1-20090709-C00008.png)
IL (1) IL71023A (US20090177143A1-20090709-C00008.png)
IT (1) IT1180708B (US20090177143A1-20090709-C00008.png)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792956A (en) * 1986-05-13 1988-12-20 Litton Systems, Inc. Laser diode intensity and wavelength control
US4836675A (en) * 1987-06-29 1989-06-06 Litton Systems, Inc. Apparatus and method for detecting rotation rate and direction of rotation and providing cavity length control in multioscillator ring laser gyroscopes
SE461758B (sv) * 1987-10-13 1990-03-19 Trumpf Gmbh & Co Co -effektlaser
US5386288A (en) * 1987-10-28 1995-01-31 Litton Systems, Inc. Split gain multimode ring laser gyroscope and method
US5022761A (en) * 1989-11-06 1991-06-11 Kennedy Thomas W Ring laser gyroscope with a tube assembly
US5371591A (en) * 1990-08-13 1994-12-06 Litton Systems, Inc. Triaxial split-gain ring laser gyroscope
US6966760B1 (en) * 2000-03-17 2005-11-22 Brp Us Inc. Reciprocating fluid pump employing reversing polarity motor
RU2362039C2 (ru) 2005-02-02 2009-07-20 БиАрПи ЮЭс ИНК. Способ управления насосным узлом

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468608A (en) * 1966-12-02 1969-09-23 Honeywell Inc Laser angular rate sensor
US3744908A (en) * 1968-12-16 1973-07-10 Honeywell Inc Externally biased ring laser
US3826575A (en) * 1973-06-25 1974-07-30 Us Navy High performance ring laser gyroscope with magneto-optical bias
CA1077602A (en) * 1976-01-02 1980-05-13 Raytheon Company Electromagnetic wave ring resonator
CA1116279A (en) * 1978-01-03 1982-01-12 Terry A. Dorschner Laser gyroscope system
US4229106A (en) * 1978-05-18 1980-10-21 Raytheon Company Electromagnetic wave ring resonator
IL61156A (en) * 1979-11-05 1983-07-31 Litton Systems Inc Dithered ring laser with minimized mirror backscattering
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
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

Also Published As

Publication number Publication date
JPS59200479A (ja) 1984-11-13
GB2138625A (en) 1984-10-24
GB8409990D0 (en) 1984-05-31
FR2544858A1 (fr) 1984-10-26
GB2138625B (en) 1987-01-14
IT1180708B (it) 1987-09-23
IT8448063A0 (it) 1984-04-18
DE8409873U1 (de) 1989-07-06
IL71023A (en) 1987-10-20
DE3411888A1 (de) 1984-10-25
CA1212748A (en) 1986-10-14
FR2544858B1 (fr) 1990-06-22
US4616930A (en) 1986-10-14

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee