DE69423235D1 - Reduzierung von optischem rauschen - Google Patents

Reduzierung von optischem rauschen

Info

Publication number
DE69423235D1
DE69423235D1 DE69423235T DE69423235T DE69423235D1 DE 69423235 D1 DE69423235 D1 DE 69423235D1 DE 69423235 T DE69423235 T DE 69423235T DE 69423235 T DE69423235 T DE 69423235T DE 69423235 D1 DE69423235 D1 DE 69423235D1
Authority
DE
Germany
Prior art keywords
optical noise
reducing optical
reducing
noise
optical
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 - Fee Related
Application number
DE69423235T
Other languages
English (en)
Other versions
DE69423235T2 (de
Inventor
N Blake
A Sanders
K Strandjord
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.)
Honeywell Inc
Original Assignee
Honeywell 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 Honeywell Inc filed Critical Honeywell Inc
Application granted granted Critical
Publication of DE69423235D1 publication Critical patent/DE69423235D1/de
Publication of DE69423235T2 publication Critical patent/DE69423235T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
    • G01C19/721—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Communication System (AREA)
  • Gyroscopes (AREA)
DE69423235T 1993-11-24 1994-11-23 Reduzierung von optischem rauschen Expired - Fee Related DE69423235T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/158,116 US5469257A (en) 1993-11-24 1993-11-24 Fiber optic gyroscope output noise reducer
PCT/US1994/013574 WO1995014907A1 (en) 1993-11-24 1994-11-23 Reduction of optical noise

Publications (2)

Publication Number Publication Date
DE69423235D1 true DE69423235D1 (de) 2000-04-06
DE69423235T2 DE69423235T2 (de) 2000-06-21

Family

ID=22566743

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69423235T Expired - Fee Related DE69423235T2 (de) 1993-11-24 1994-11-23 Reduzierung von optischem rauschen

Country Status (6)

Country Link
US (1) US5469257A (de)
EP (1) EP0730725B1 (de)
JP (1) JP2847433B2 (de)
CA (1) CA2175921C (de)
DE (1) DE69423235T2 (de)
WO (1) WO1995014907A1 (de)

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US6563589B1 (en) 1996-04-19 2003-05-13 Kvh Industries, Inc. Reduced minimum configuration fiber optic current sensor
US5898496A (en) * 1997-02-14 1999-04-27 Allied Signal Inc Optical signal noise reduction for fiber optic gyroscopses
US5923424A (en) * 1997-06-19 1999-07-13 Honeywell Inc. Fiber optic gyroscope vibration error compensator
US5946097A (en) * 1997-12-31 1999-08-31 Honeywell Inc. Vibration rectification error reducer for fiber optic gyroscope
US6002481A (en) * 1998-04-08 1999-12-14 Honeywell, Inc. Fiber optic gyro with noise dither circuit for enhancing A/D conversion resolution
US6175410B1 (en) 1998-12-17 2001-01-16 Honeywell Inc. Fiber optic gyroscope having modulated suppression of co-propagating and counter-propagating polarization errors
US6539134B1 (en) 1999-02-11 2003-03-25 Kvh Industries, Inc. Polarization transformer
US6891622B2 (en) 1999-02-11 2005-05-10 Kvh Industries, Inc. Current sensor
US6370289B1 (en) * 2000-01-12 2002-04-09 Kvh Industries, Inc. Apparatus and method for electronic RIN reduction in fiber-optic sensors
DE60102906D1 (de) 2000-02-28 2004-05-27 Kvh Ind Inc Faraday-effekt-stromsonde mit verbesserter schwingungsreaktion
WO2002006769A2 (en) 2000-07-13 2002-01-24 Kvh Industries, Inc. Method for controlling fiber optic sensor scale factor
US6587205B2 (en) * 2000-07-28 2003-07-01 Litton Systems, Inc Integrated optic gyroscope and method of fabrication
WO2002010813A2 (en) * 2000-08-02 2002-02-07 Kvh Industries, Inc. Reduction of linear birefringence in circular-core single-mode fiber
US6707558B2 (en) 2000-08-02 2004-03-16 Kvh Industries, Inc. Decreasing the effects of linear birefringence in a fiber-optic sensor by use of Berry's topological phase
US6590910B2 (en) * 2000-09-22 2003-07-08 Calmar Optcom, Inc. Actively mode-locked fiber laser with controlled chirp output
US6839363B2 (en) * 2001-03-16 2005-01-04 Calmar Optcom, Inc. Digital control of actively mode-locked lasers
US6845108B1 (en) 2001-05-14 2005-01-18 Calmar Optcom, Inc. Tuning of laser wavelength in actively mode-locked lasers
DE10130159C2 (de) 2001-06-22 2003-06-18 Litef Gmbh Verfahren zur Vermeidung von Bias-Fehlern aufgrund synchroner Einstreuung bei faseroptischen Gyroskopen
DE10138154C2 (de) * 2001-08-03 2003-06-05 Litef Gmbh Verfahren und Einrichtung zur Erhöhung der Langzeit-Betriebszuverlässigkeit eines faseroptischen Interferometers
US6836334B2 (en) * 2001-10-31 2004-12-28 Kvh Industries, Inc. Angle random walk (ARW) noise reduction in fiber optic sensors using an optical amplifier
US6763153B2 (en) * 2002-04-17 2004-07-13 Kvh Industries, Inc. Apparatus and method for electronic RIN reduction in fiber-optic sensors utilizing filter with group delay
DE10245540B3 (de) * 2002-09-30 2004-09-16 Litef Gmbh Verfahren zur Regelung der Arbeitsfrequenz eines faseroptischen Gyroskops
DE10339889B4 (de) * 2003-08-29 2005-12-15 Litef Gmbh Verfahren zur Ermittlung/Kompensation von durch die Lichtquelle induzierten Bias-/Random-Walk-Fehlern in faseroptischen Sagnac-Interferometern
KR100811883B1 (ko) * 2005-12-08 2008-03-10 한국전자통신연구원 광 정렬 방법 및 장치
US7586619B2 (en) * 2006-12-21 2009-09-08 Honeywell International, Inc. Spectral balancing system and method for reducing noise in fiber optic gyroscopes
US7872758B2 (en) * 2007-01-22 2011-01-18 The Charles Stark Draper Laboratory, Inc. Determining and compensating for modulator dynamics in interferometric fiber-optic gyroscopes
US7804600B1 (en) * 2007-04-30 2010-09-28 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Ring-laser gyroscope system using dispersive element(s)
US7817284B2 (en) * 2007-08-08 2010-10-19 The Charles Stark Draper Laboratory, Inc. Interferometric fiber optic gyroscope with off-frequency modulation signals
US7710576B2 (en) * 2008-03-10 2010-05-04 Honeywell International Inc. Method and apparatus for monitoring angle random walk of a fiber optic gyroscope
US8077322B2 (en) * 2009-03-09 2011-12-13 Honeywell International Inc. Signal conditioning to provide optimum gain and noise reduction for resonator fiber optic gyroscopes
US8294900B2 (en) * 2009-04-01 2012-10-23 Honeywell International Inc. Systems and methods for resonator fiber optic gyroscope intensity modulation control
US20100284018A1 (en) * 2009-05-11 2010-11-11 Honeywell International Inc. Systems and methods for effective relative intensity noise (rin) subtraction in depolarized gyros
US8085407B2 (en) * 2009-08-12 2011-12-27 Honeywell International Inc. Resonator optical gyroscope having input beam modulation optimized for high sensitivity and low bias
US8223341B2 (en) 2010-05-28 2012-07-17 Honeywell International Inc. System and method for enhancing signal-to-noise ratio of a resonator fiber optic gyroscope
US8213019B2 (en) 2010-09-07 2012-07-03 Honeywell International Inc. RFOG with optical heterodyning for optical signal discrimination
RU2451906C1 (ru) * 2010-11-02 2012-05-27 Закрытое акционерное общество "Центр волоконно-оптических систем передачи информации" (ЗАО "Центр ВОСПИ") Полупроводниковый лазерный гироскоп (варианты)
US8213018B2 (en) 2010-11-10 2012-07-03 Honeywell International Inc. Constant optical power sensor using a light source current servo combined with digital demodulation intensity suppression for radiation and vibration insensitivity in a fiber optic gyroscope
US8717575B2 (en) * 2011-08-17 2014-05-06 Honeywell International Inc. Systems and methods for environmentally insensitive high-performance fiber-optic gyroscopes
US9574880B2 (en) * 2011-09-29 2017-02-21 King Abdulaziz City For Science And Technology MEMS based ring laser gyroscope with reduced lock-in
US8908187B2 (en) 2011-11-02 2014-12-09 Honeywell International Inc. System and method for reducing errors in a resonator fiber optic gyroscope
EP2921821B1 (de) * 2012-11-13 2017-08-23 Logozinski, Valery Nikolaevich Faseroptischer kreisel
RU2522147C1 (ru) * 2012-11-13 2014-07-10 Валерий Николаевич Логозинский Волоконно-оптический гироскоп
US9823075B2 (en) 2013-01-10 2017-11-21 Xiaotian Steve Yao Non-interferometric optical gyroscope based on polarization sensing
US8830479B2 (en) 2013-01-28 2014-09-09 Honeywell International Inc. RFOG with optical heterodyning for optical signal discrimination
US8947671B2 (en) 2013-02-22 2015-02-03 Honeywell International Inc. Method and system for detecting optical ring resonator resonance frequencies and free spectral range to reduce the number of lasers in a resonator fiber optic gyroscope
US9008221B2 (en) 2013-04-01 2015-04-14 Honeywell International Inc. Spurious frequency attenuation servo
US9678288B2 (en) * 2013-07-10 2017-06-13 Photonics Electronics Technology Research Association Optical circuit
GB201313389D0 (en) 2013-07-26 2013-09-11 Atlantic Inertial Systems Ltd Signal processing
US9001336B1 (en) 2013-10-07 2015-04-07 Honeywell International Inc. Methods and apparatus of tracking/locking resonator free spectral range and its application in resonator fiber optic gyroscope
US9041934B2 (en) * 2013-10-25 2015-05-26 Honeywell International Inc. Dispersion managed interferometric fiber optic gyroscope
FR3017945B1 (fr) * 2014-02-26 2017-07-28 Ixblue Dispositif de mesure interferometrique
US9495801B2 (en) 2014-05-01 2016-11-15 Microsoft Technology Licensing, Llc Pose tracking an augmented reality device
US10502585B2 (en) * 2014-10-23 2019-12-10 The Boeing Company Gyro rate computation for an interferometric fiber optic gyro
WO2016157819A1 (ja) * 2015-03-30 2016-10-06 日本電気株式会社 光回路、およびそれを用いた光スイッチ
CN109141391A (zh) * 2018-07-25 2019-01-04 中国航空工业集团公司西安飞行自动控制研究所 一种干涉式闭环光纤陀螺调制方法
US10767995B2 (en) * 2018-08-28 2020-09-08 Honeywell International Inc. Hyperbolic modulation offset error reducer for an RFOG
US10794703B1 (en) 2019-07-02 2020-10-06 Northrop Grumman Systems Corporation Fiber optic gyroscope control system using sub-tau modulation
EP3848671B1 (de) 2020-01-09 2023-10-11 The Board of Trustees of the Leland Stanford Junior University Faseroptischer kreisel mit optischem gating zur spike-unterdrückung
US10989535B1 (en) 2020-01-31 2021-04-27 Northrop Grumman Systems Corporation Calibration circuit to mitigate fiber-optic gyroscope (FOG) bias error
US11294120B2 (en) * 2020-05-07 2022-04-05 Honeywell International Inc. Integrated environmentally insensitive modulator for interferometric gyroscopes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331404A (en) * 1992-11-30 1994-07-19 The United States Of America As Represented By The Secretary Of The Navy Low noise fiber gyroscope system which includes excess noise subtraction

Also Published As

Publication number Publication date
EP0730725A1 (de) 1996-09-11
DE69423235T2 (de) 2000-06-21
JPH09505147A (ja) 1997-05-20
JP2847433B2 (ja) 1999-01-20
CA2175921A1 (en) 1995-06-01
US5469257A (en) 1995-11-21
EP0730725B1 (de) 2000-03-01
CA2175921C (en) 2001-05-08
WO1995014907A1 (en) 1995-06-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee