FR2500154B1 - Procede et dispositif d'absorption d'ondes electromagnetiques reflechies dans un gyroscope a laser - Google Patents

Procede et dispositif d'absorption d'ondes electromagnetiques reflechies dans un gyroscope a laser

Info

Publication number
FR2500154B1
FR2500154B1 FR8202414A FR8202414A FR2500154B1 FR 2500154 B1 FR2500154 B1 FR 2500154B1 FR 8202414 A FR8202414 A FR 8202414A FR 8202414 A FR8202414 A FR 8202414A FR 2500154 B1 FR2500154 B1 FR 2500154B1
Authority
FR
France
Prior art keywords
absorption
electromagnetic waves
reflected electromagnetic
laser gyroscope
gyroscope
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
FR8202414A
Other languages
English (en)
Other versions
FR2500154A1 (fr
Inventor
Michael S Perlmutter
Lawrence L Clampitt
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 FR2500154A1 publication Critical patent/FR2500154A1/fr
Application granted granted Critical
Publication of FR2500154B1 publication Critical patent/FR2500154B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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)
  • 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)
FR8202414A 1981-02-17 1982-02-15 Procede et dispositif d'absorption d'ondes electromagnetiques reflechies dans un gyroscope a laser Expired FR2500154B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/235,320 US4494873A (en) 1981-02-17 1981-02-17 Electromagnetic wave reflections absorber

Publications (2)

Publication Number Publication Date
FR2500154A1 FR2500154A1 (fr) 1982-08-20
FR2500154B1 true FR2500154B1 (fr) 1986-02-21

Family

ID=22885008

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8202414A Expired FR2500154B1 (fr) 1981-02-17 1982-02-15 Procede et dispositif d'absorption d'ondes electromagnetiques reflechies dans un gyroscope a laser

Country Status (14)

Country Link
US (1) US4494873A (fr)
JP (1) JPS57153484A (fr)
AU (1) AU550724B2 (fr)
BE (1) BE892159A (fr)
CA (1) CA1190308A (fr)
CH (1) CH656707A5 (fr)
DE (1) DE3205273A1 (fr)
DK (1) DK164332C (fr)
FR (1) FR2500154B1 (fr)
GB (1) GB2093264A (fr)
IT (1) IT1147598B (fr)
NL (1) NL8200474A (fr)
NO (1) NO162585C (fr)
SE (1) SE451888B (fr)

Families Citing this family (18)

* 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
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
US5080487A (en) * 1986-11-06 1992-01-14 Litton Systems, Inc. Ring laser gyroscope with geometrically induced bias
US4899343A (en) * 1988-01-20 1990-02-06 Ciba-Geigy Ag Laser layout
US4962506A (en) * 1988-04-14 1990-10-09 Litton Systems, Inc. Scatter symmetrization in multi-mode ring laser gyros
US4966437A (en) * 1988-04-19 1990-10-30 Litton Systems, Inc. Fault-tolerant anti-reflective coatings
US5495335A (en) * 1989-04-05 1996-02-27 Litton Systems, Inc. Ring laser gyroscope with a non-loss inducing mode suppression mechanism
US5959727A (en) * 1997-08-01 1999-09-28 Raytheon Company System and method for discriminating between direct and reflected electromagnetic energy
US6618151B2 (en) * 2001-01-17 2003-09-09 Honeywell International Inc. Ring laser gyroscope with offset aperture
US6466710B1 (en) * 2001-11-07 2002-10-15 Lockheed Martin Corporation Passive identification friend or foe (IFF) system
FR2853061B1 (fr) * 2003-03-25 2006-01-20 Thales Sa Gyrolaser a etat solide stabilise
US6788715B1 (en) * 2003-05-30 2004-09-07 Princeton Optronics Stabilized laser using multiphoton absorption to reduce intensity fluctuations
US7126085B1 (en) * 2005-08-03 2006-10-24 Hilary Boehme Self-darkening shield for replaceably attaching to a torch
US20100315698A1 (en) * 2007-04-10 2010-12-16 Dixon George J Modular ring resonator
US8422022B2 (en) * 2010-08-05 2013-04-16 Honeywell International Inc. Increasing the scale factor of gas laser based gyroscopes with an external gain saturation beam
EP2581775A1 (fr) * 2011-10-14 2013-04-17 Astrium Limited Optimisation de résonateur
US9065241B2 (en) * 2012-05-11 2015-06-23 Massachusetts Institute Of Technology Methods, systems, and apparatus for high energy optical-pulse amplification at high average power

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214596A (en) * 1962-10-31 1965-10-26 Machinery Electrification Inc Photoelectric sensor structure including light source and inclined lens
US3892486A (en) * 1973-04-23 1975-07-01 United Aircraft Corp Sequentially switched laser gyro
US4110045A (en) * 1976-01-02 1978-08-29 Raytheon Company Electromagnetic wave ring resonator
US4284329A (en) * 1978-01-03 1981-08-18 Raytheon Company Laser gyroscope system
US4272158A (en) * 1979-03-02 1981-06-09 Coherent, Inc. Broadband optical diode for a ring laser

Also Published As

Publication number Publication date
IT8247746A0 (it) 1982-02-08
FR2500154A1 (fr) 1982-08-20
DK164332C (da) 1992-12-21
NL8200474A (nl) 1982-09-16
BE892159A (fr) 1982-06-16
AU7995182A (en) 1982-08-26
AU550724B2 (en) 1986-04-10
US4494873A (en) 1985-01-22
NO162585B (no) 1989-10-09
DK164332B (da) 1992-06-09
DE3205273A1 (de) 1982-09-16
GB2093264A (en) 1982-08-25
JPS57153484A (en) 1982-09-22
CH656707A5 (de) 1986-07-15
DK66182A (da) 1982-08-18
NO820471L (no) 1982-08-18
CA1190308A (fr) 1985-07-09
NO162585C (no) 1990-01-17
SE8200964L (sv) 1982-08-18
IT1147598B (it) 1986-11-19
SE451888B (sv) 1987-11-02

Similar Documents

Publication Publication Date Title
FR2500154B1 (fr) Procede et dispositif d'absorption d'ondes electromagnetiques reflechies dans un gyroscope a laser
FR2507078B1 (fr) Procede et dispositif d'echographie ultrasonore
FR2476319B1 (fr) Dispositif et procede d'exploration ultrasonore
FR2494513B1 (fr) Procede et dispositif pour doubler la frequence d'un faisceau laser
FR2600173B1 (fr) Procede pour determiner la geometrie d'un dispositif d'emission d'ondes sismiques multi-sources
BE877128A (fr) Procede et dispositif pour definir la structure interne d'un corps a l'aide d'un faisceau acoustique
FR2512213B1 (fr) Procede et dispositif pour indiquer la presence d'un objet dans une zone de mesure
FR2566115B1 (fr) Procede et dispositif de mesure de l'epaisseur de paroi d'une couche
FR2549525B1 (fr) Procede et dispositif pour determiner l'orientation d'un instrument de topographie dans un trou de sondage
FR2541924B1 (fr) Procede et dispositif de determination d'une position
FR2582825B1 (fr) Procede et dispositif pour la mesure du temps de propagation d'une onde
FR2546912B1 (fr) Procede et dispositif d'elaboration d'un monocristal
FR2482284B1 (fr) Procede et dispositif pour le mesurage d'une dimension d'un objet dans un liquide et application dudit procede
BE888013A (fr) Procede et dispositif pour le mesurage sans contanct d'une dimension
FR2334964A1 (fr) Procede et dispositif pour mesurer le degre d'absorption dans un plan d'un corps
FR2472232B1 (fr) Dispositif et procede d'effacement d'antememoire
FR2309846A1 (fr) Procede et dispositif de determination du nombre d'ondes de rayonnements optiques et application a l'asservissement de lasers
FR2531206B1 (fr) Dispositif et procede d'examen optique
FR2536860B1 (fr) Procede et dispositif pour l'analyse d'heterogeneites dans un materiau transparent
FR2558956B1 (fr) Procede et dispositif de recherche et de caracterisation de defauts d'une structure metallique connue immergee
FR2615940B1 (fr) Procede et dispositif de determination d'une position de reference d'un mobile
FR2594228B1 (fr) Procede et dispositif pour determiner l'orientation d'un cristal
OA06148A (fr) Dispositif et procédé pour déterminer la vitesse d'ondes acoustiques dans des formations terrestres.
FR2546271B1 (fr) Procede et dispositif pour la coloration d'un faisceau lumineux
FR2588102B1 (fr) Procede et dispositif pour la decoupe du contour d'un objet plan

Legal Events

Date Code Title Description
ST Notification of lapse