JP6426897B2 - 共振器光ファイバジャイロスコープにおけるレーザの数を削減するために光リング共振器の共振周波数と自由スペクトル領域を検出する方法及びシステム - Google Patents
共振器光ファイバジャイロスコープにおけるレーザの数を削減するために光リング共振器の共振周波数と自由スペクトル領域を検出する方法及びシステム Download PDFInfo
- Publication number
- JP6426897B2 JP6426897B2 JP2014031494A JP2014031494A JP6426897B2 JP 6426897 B2 JP6426897 B2 JP 6426897B2 JP 2014031494 A JP2014031494 A JP 2014031494A JP 2014031494 A JP2014031494 A JP 2014031494A JP 6426897 B2 JP6426897 B2 JP 6426897B2
- Authority
- JP
- Japan
- Prior art keywords
- fsr
- modulation
- frequency
- laser
- resonator
- 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.)
- Active
Links
- 230000003595 spectral effect Effects 0.000 title claims description 29
- 239000000835 fiber Substances 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 24
- 230000003287 optical effect Effects 0.000 title description 34
- 238000001514 detection method Methods 0.000 claims description 86
- 238000012937 correction Methods 0.000 claims description 67
- 230000005540 biological transmission Effects 0.000 claims description 36
- 230000000737 periodic effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 13
- 238000001914 filtration Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 8
- 230000003750 conditioning effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920005560 fluorosilicone rubber Polymers 0.000 description 2
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- SKIIKRJAQOSWFT-UHFFFAOYSA-N 2-[3-[1-(2,2-difluoroethyl)piperidin-4-yl]oxy-4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]pyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound FC(CN1CCC(CC1)OC1=NN(C=C1C=1C=NC(=NC=1)NC1CC2=CC=CC=C2C1)CC(=O)N1CC2=C(CC1)NN=N2)F SKIIKRJAQOSWFT-UHFFFAOYSA-N 0.000 description 1
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000035559 beat frequency Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
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
-
- 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
- G01C19/727—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 using a passive ring resonator
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)
- Gyroscopes (AREA)
Description
例6は、前記時計回りPound−Drever−Hall変調発生器は、前記第1及び第2FSR検出サーボ回路のそれぞれから前記変調周波数を表す第1デジタルデータを受け取り、Pound−Drever−Hall変調周波数のアナログサイン波電圧を出力するための第1ダイレクトデジタルシンセサイザと、前記第1及び第2FSR検出サーボ回路のそれぞれから前記変調周波数の2倍を表す第2デジタルデータ出力を受け取り、Pound−Drever−Hall変調周波数の2倍のデジタル基準信号を出力するための第2ダイレクトデジタルシンセサイザと、前記第1及び第2ダイレクトデジタルシンセサイザに共通のダイレクトデジタルシンセサイザクロックと、を含む、例2−5のいずれかの共振器光ファイバジャイロスコープを含む。
Claims (3)
- 時計回り入力ポート(152)と反時計回り入力ポート(151)と自由スペクトル領域(FSR)とを有するジャイロスコープ共振器(150)と、
時計回り光ビーム(126)を前記時計回り入力ポートに結合するように構成された第1レーザ(106)と、
前記時計回り光ビームが前記時計回り入力ポートに結合される前に前記時計回り光ビームを第1共振追従変調で変調するための時計回りPound−Drever−Hall変調発生器(102)と、
第1バイアス補正回路(204)と、
前記時計回りPound−Drever−Hall変調発生器に通信可能に結合された第1スイッチ(450)を含む第1自由スペクトル領域(FSR)検出サーボ回路(202)と、
前記反時計回り入力ポートから出力された光ビームを受け取り、前記第1バイアス補正回路と前記第1FSR検出サーボ回路へ信号を出力するように構成された時計回り伝送検出器(115)と、
反時計回り光ビーム(125)を前記反時計回り入力ポートに結合するように構成された第2レーザ(105)と、
前記反時計回り光ビームが前記反時計回り入力ポート(151)に結合される前に前記反時計回り光ビーム(125)を第2共振追従変調で変調するための反時計回りPound−Drever−Hall変調発生器(101)と、
第2バイアス補正回路(254)と、
前記反時計回りPound−Drever−Hall変調発生器に通信可能に結合された第2スイッチ(450)を含む第2FSR検出サーボ回路(252)と、
前記時計回り入力ポート(152)から出力された光ビームを受け取り、前記第2バイアス補正回路と前記第2FSR検出サーボ回路へ信号を出力するように構成された反時計回り伝送検出器(116)と、
を備え、前記FSRが、前記時計回り光ビームのPound−Drever−Hall変調と前記反時計回り光ビームのPound−Drever−Hall変調に基づいて測定される、共振器光ファイバジャイロスコープ(10)。 - 前記第1バイアス補正回路(204)と前記第2バイアス補正回路(254)は、
アナログデジタル変換器(205)と、
前記アナログデジタル変換器から入力を受け取る第1デジタルミキサ(411)と、
前記第1デジタルミキサから入力を受け取る第2デジタルミキサと、
前記第2デジタルミキサから入力を受け取り、Pound−Drever−Hallループのロック設定点を制御する累算器(260)であって、バイアス誤差が平均ゼロに制御される、累算器と、
デジタルアナログ変換器(470)と、を含み、
前記第1バイアス補正回路の前記デジタルアナログ変換器からの出力が、時計回りPound−Drever−Hallサーボ回路(206)へ入力され、前記第2バイアス補正回路の前記デジタルアナログ変換器からの出力が、反時計回りPound−Drever−Hallサーボ回路(256)へ入力され、前記第1FSR検出サーボ回路(202)と前記第2FSR検出サーボ回路(252)は、それぞれ前記第1スイッチ(450)と前記第2スイッチ(450)を制御するためのクロック信号を発生させる各クロック(445)を更に含み、前記第1及び第2FSR検出サーボ回路(202、252)からの前記クロック信号が、それぞれ前記第1及び第2バイアス補正回路(204、254)の前記第2デジタルミキサ(412)へ入力され、前記第1レーザ(106)の変調周波数が、fmod+とfmod−の間で周期的に切り換えられ、前記第2レーザ(105)の変調周波数が、fmod+とfmod−の間で周期的に切り換えられ、前記周期的な切り換えは、前記変調の不完全性に起因する誤差を相殺し、前記ジャイロスコープ共振器(150)のFSRが、前記周期的な切り換えに基づいて検知される、請求項1に記載の共振器光ファイバジャイロスコープ(10)。 - 共振器光ファイバジャイロスコープ(10)におけるジャイロスコープ共振器(150)の自由スペクトル領域(FSR)を測定する方法であって、
上方シフトされた周波数と下方シフトされた周波数に側波帯を有する時計回り光ビーム(126)を放射するように第1レーザ(106)を変調するステップであって、第1レーザの変調周波数は、FSRの第1の整数倍、又は前記FSRの前記第1の整数倍プラス第1の増分の一方である、ステップと、
前記時計回り光ビームを前記ジャイロスコープ共振器の時計回り入力ポート(152)に結合するステップと、
反時計回り光ビーム(125)を前記ジャイロスコープ共振器の反時計回り入力ポート(151)に結合するステップと、
前記変調の不完全性に起因する誤差を相殺するように前記第1レーザの前記変調周波数をfmod+とfmod−の間で周期的に切り換えるステップと、
前記変調の不完全性に起因する誤差を相殺するように第2レーザ(105)の変調周波数をf mod+ とf mod− の間で周期的に切り換えるステップと、
前記第1レーザ及び前記第2レーザにおける前記切り換えに基づいて前記ジャイロスコープ共振器のFSRを検知するステップと、
上方シフトされた周波数と下方シフトされた周波数に第2側波帯を有する前記反時計回り光ビーム(125)を放射するように前記第2レーザを同時に変調するステップであって、前記第2レーザの変調周波数は、前記FSRの第2の整数倍、又は前記FSRの前記第2の整数倍プラス第2の増分の一方である、ステップと、
を含む方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/774,678 US8947671B2 (en) | 2013-02-22 | 2013-02-22 | 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 |
US13/774,678 | 2013-02-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014163939A JP2014163939A (ja) | 2014-09-08 |
JP6426897B2 true JP6426897B2 (ja) | 2018-11-21 |
Family
ID=50000939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014031494A Active JP6426897B2 (ja) | 2013-02-22 | 2014-02-21 | 共振器光ファイバジャイロスコープにおけるレーザの数を削減するために光リング共振器の共振周波数と自由スペクトル領域を検出する方法及びシステム |
Country Status (4)
Country | Link |
---|---|
US (1) | US8947671B2 (ja) |
EP (1) | EP2770298B1 (ja) |
JP (1) | JP6426897B2 (ja) |
CN (1) | CN104006809B (ja) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8923352B2 (en) * | 2012-08-10 | 2014-12-30 | Honeywell International Inc. | Laser with transmission and reflection mode feedback control |
US9429426B2 (en) * | 2014-01-22 | 2016-08-30 | Northrop Grumman Systems Corporation | Adaptive inertial measurement system and method |
US9212912B1 (en) * | 2014-10-24 | 2015-12-15 | Honeywell International Inc. | Ring laser gyroscope on a chip with doppler-broadened gain medium |
US9772189B2 (en) | 2015-05-11 | 2017-09-26 | Honeywell International Inc. | Systems and methods for resonance switching resonator fiber optic gyroscopes (RFOGs) with feed-forward processing |
US9459101B1 (en) | 2015-06-15 | 2016-10-04 | Honeywell International Inc. | Systems and methods for fiber optic gyroscopes utilizing reference ring resonators |
US9733084B2 (en) * | 2015-09-09 | 2017-08-15 | Honeywell International Inc. | Single pump cascaded stimulated Brillouin scattering (SBS) ring laser gyro |
FR3050025B1 (fr) * | 2016-04-06 | 2018-07-20 | Thales | Gyrometre optique resonant compact a trois frequences |
JP6494888B2 (ja) * | 2016-12-19 | 2019-04-03 | 三菱電機株式会社 | Pll回路 |
US10175047B2 (en) * | 2017-05-10 | 2019-01-08 | Honeywell International Inc. | Systems and methods for dynamic bias offset operation in resonator fiber optic gyroscope |
CN107843248B (zh) * | 2017-09-01 | 2021-05-14 | 长春理工大学 | 自注入锁定谐振式光学陀螺及其工作方法 |
US10451421B2 (en) | 2018-01-05 | 2019-10-22 | Honeywell International Inc. | Resonant fiber optical gyroscope using antiresonant nodeless fiber |
US10415971B2 (en) | 2018-01-15 | 2019-09-17 | Honeywell International Inc. | Apparatus and method for diminished bias error due to polarization mismatch |
CN108168537B (zh) * | 2018-02-06 | 2020-04-24 | 浙江大学 | 基于正交解调的谐振式光学陀螺的检测系统和方法 |
FR3084148A1 (fr) * | 2018-07-19 | 2020-01-24 | Stmicroelectronics S.R.L. | Dispositif a resonateur optique annulaire |
US10837779B2 (en) | 2018-07-20 | 2020-11-17 | Honeywell International Inc. | Apparatus for enhanced beat note detection |
US10747031B2 (en) | 2018-08-07 | 2020-08-18 | Teraxion Inc. | Method and system for optical phase modulation with reduced harmonic content |
US10767995B2 (en) * | 2018-08-28 | 2020-09-08 | Honeywell International Inc. | Hyperbolic modulation offset error reducer for an RFOG |
US20200072609A1 (en) | 2018-09-04 | 2020-03-05 | Honeywell International Inc. | Apparatus and method for diminished bias error due to polarization mismatch |
US10429187B1 (en) | 2018-09-04 | 2019-10-01 | Honeywell International Inc. | Apparatus and method for optical power control |
US10914587B1 (en) * | 2019-07-23 | 2021-02-09 | Honeywell International Inc. | Systems and methods for correcting errors in gyroscopes |
US11002544B2 (en) | 2019-07-26 | 2021-05-11 | Honeywell International Inc. | RFOG resonance hopping |
US11002545B2 (en) * | 2019-08-20 | 2021-05-11 | Honeywell International Inc. | Sideband heterodyne switching for resonator fiber optic gyroscopes (RFOGs) |
CN111089605A (zh) * | 2019-12-13 | 2020-05-01 | 北京航天时代光电科技有限公司 | 一种谐振式光学陀螺的检测装置和方法 |
CN112066969B (zh) * | 2020-10-15 | 2021-08-13 | 中北大学 | 基于光学锁相环的双光源自注入锁定谐振式微光机电陀螺 |
CN113465630B (zh) * | 2021-07-02 | 2023-09-22 | 浙江大学 | 基于相干解调的光学谐振腔自由谱线宽度在线测试系统及方法 |
CN115112113B (zh) * | 2022-07-18 | 2023-03-03 | 哈尔滨工业大学 | 一种谐振式光纤陀螺的相对强度噪声误差补偿装置及方法 |
Family Cites Families (100)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3861220A (en) | 1973-10-26 | 1975-01-21 | Us Navy | Microwave gyro |
US4135822A (en) | 1976-01-19 | 1979-01-23 | Massachusetts Institute Of Technology | Laser gyroscope |
US4274742A (en) | 1979-11-29 | 1981-06-23 | Sperry Corporation | Passive ring laser rate of turn devices |
US4323310A (en) | 1979-12-05 | 1982-04-06 | The United States Of America As Represented By The Secretary Of The Air Force | Fiber optic rotation sensing interferometer |
US4352562A (en) | 1980-07-07 | 1982-10-05 | Sperry Corporation | Passive ring laser rate of turn device with acousto-optic modulation |
DE3426868A1 (de) | 1984-07-20 | 1986-01-30 | LITEF Litton Technische Werke der Hellige GmbH, 7800 Freiburg | Verfahren und einrichtung zur drehratenauslesung mittels eines passiven optischen resonators |
US4673293A (en) | 1985-01-31 | 1987-06-16 | Honeywell Inc. | Passive cavity gyro bias eliminator |
US5100236A (en) | 1985-02-14 | 1992-03-31 | Rockwell International Corporation | Two servo loop passive ring laser gyroscope |
US4807999A (en) | 1986-03-13 | 1989-02-28 | Rockwell International Corporation | Two source passive ring laser gyroscope |
EP0240949A3 (en) | 1986-04-07 | 1988-12-14 | Honeywell Inc. | Passive ring resonator angular rate sensor |
US4815851A (en) | 1986-05-19 | 1989-03-28 | Rockwell International Corporation | Frequency modulated phase-locked stabilized passive ring laser gyro |
USRE34121E (en) | 1987-01-30 | 1992-11-03 | Litton Systems, Inc. | Method and system for correcting random walk errors induced by rate reversals in a dithered ring laser gyroscope |
US4921354A (en) | 1987-03-23 | 1990-05-01 | Rockwell International Corporation | Identical servo frequency modulated passive ring laser gyroscope |
US5112128A (en) | 1987-07-23 | 1992-05-12 | Rockwell International Corporation | Sourced locked frequency modulated dual servo PRLG |
US4863272A (en) | 1988-05-12 | 1989-09-05 | The Charles Stark Draper Laboratory, Inc. | Multi-mode fiber optic resonator gyroscope |
US5018857A (en) | 1988-09-15 | 1991-05-28 | Honeywell Inc. | Passive ring resonator gyro with polarization rotating ring path |
US5131749A (en) | 1989-03-15 | 1992-07-21 | British Aerospace Public Limited Company | Reduction of demodulator offset errors in fibre-optic gyroscopes |
EP0393987A3 (en) | 1989-04-19 | 1992-08-05 | British Aerospace Public Limited Company | Ring resonator gyro |
GB2233445A (en) | 1989-06-24 | 1991-01-09 | British Aerospace | Ring resonator gyro |
US5237387A (en) | 1989-09-07 | 1993-08-17 | Honeywell Inc. | Dual serrodyne resonator fiber optic gyroscope |
US5398111A (en) | 1989-12-15 | 1995-03-14 | The Charles Stark Draper Laboratory, Inc. | Optically-locked fiber-optic resonant gyro |
US5420684A (en) | 1989-12-22 | 1995-05-30 | The Charles Stark Draper Laboratory, Inc. | Resonant interferometer fiber optic gyroscope |
US5090809A (en) | 1990-06-04 | 1992-02-25 | Ferrar Carl M | Modulation frequency control in a fiber optic rotation sensor |
DE4107915C2 (de) * | 1991-03-12 | 1998-04-09 | Bodenseewerk Geraetetech | Sensor |
US5384637A (en) | 1991-04-12 | 1995-01-24 | Honeywell Inc. | Fiber optic gyroscope modulation amplitude control |
US5349441A (en) | 1991-08-06 | 1994-09-20 | Honeywell, Inc. | Fiber optic gyroscope refractive index induced error compensation |
US5229831A (en) | 1991-09-20 | 1993-07-20 | The Charles Stark Draper Laboratory, Inc. | Ultraminiature tactical grade cryogenic RFOG |
US6014217A (en) | 1991-10-30 | 2000-01-11 | Honeywell, Inc. | Fiber optic gyroscope scattering error reduction |
US5289258A (en) | 1992-01-15 | 1994-02-22 | Honeywell Inc. | Fiber optic gyroscope modulation error reduction |
US5296912A (en) | 1992-01-16 | 1994-03-22 | Honeywell Inc. | RFOG rotation rate error reducer having resonator mode symmetrization |
US5325174A (en) | 1992-06-23 | 1994-06-28 | Northrop Corporation | Integrated optic gyro with one Bragg transducer |
GB2276000B (en) | 1993-02-27 | 1996-10-09 | British Aerospace | Laser gyroscopes |
US5428696A (en) | 1993-07-15 | 1995-06-27 | The Perkin-Elmer Corporation | Photometric instrument with optical fibers for analyzing remote samples |
US5469257A (en) | 1993-11-24 | 1995-11-21 | Honeywell Inc. | Fiber optic gyroscope output noise reducer |
US5465149A (en) | 1994-03-10 | 1995-11-07 | Honeywell Inc. | Lightwave phase control for reduction of resonator fiber optic gyroscope Kerr effect error |
US5493623A (en) | 1994-06-28 | 1996-02-20 | Honeywell Inc. | PZT fiber optic modulator having a robust mounting and method of making same |
GB2300911A (en) | 1995-05-18 | 1996-11-20 | British Aerospace | Optical gyroscope |
EP0830570B1 (en) | 1995-06-07 | 2001-08-16 | Honeywell Inc. | Proper frequency tracker for fiber optic sensing coil |
US5767968A (en) | 1995-12-29 | 1998-06-16 | Honeywell Inc. | Coherent pickup error cancellation device |
JPH09218432A (ja) * | 1996-02-09 | 1997-08-19 | Ricoh Co Ltd | 発振周波数安定化装置およびレーザ装置 |
US5781300A (en) | 1996-10-31 | 1998-07-14 | Honeywell Inc. | Backscatter error reducer for interferometric fiber optic gyroscope |
US5926275A (en) | 1997-06-19 | 1999-07-20 | Honeywell Inc. | Vibration error reduction servo for a fiber optic gyroscope |
US5923424A (en) | 1997-06-19 | 1999-07-13 | Honeywell Inc. | Fiber optic gyroscope vibration error compensator |
JP2002510059A (ja) * | 1998-01-13 | 2002-04-02 | シーゲイト テクノロジー インコーポレーテッド | 静電マイクロアクチュエータを有する光マイクロスイッチおよびその使用方法 |
KR20010052659A (ko) | 1998-06-09 | 2001-06-25 | 크리스탈 화이버 에이/에스 | 광자 밴드갭 섬유 |
US6175410B1 (en) | 1998-12-17 | 2001-01-16 | Honeywell Inc. | Fiber optic gyroscope having modulated suppression of co-propagating and counter-propagating polarization errors |
US6204921B1 (en) | 1998-12-30 | 2001-03-20 | Honeywell, Inc. | System for suppression of relative intensity noise in a fiber optic gyroscope |
JP2001066142A (ja) * | 1999-08-27 | 2001-03-16 | Yokogawa Denshikiki Co Ltd | 共振型光ジャイロ |
WO2001065701A2 (en) | 2000-02-17 | 2001-09-07 | Aleph Lightgale Corporation | Fiber-ring optical resonators |
JP4558158B2 (ja) * | 2000-08-10 | 2010-10-06 | 東京航空計器株式会社 | 共振形光ファイバジャイロにおける偏波変動誘起ドリフトを低減させる方法および該方法を用いた装置 |
US20020044737A1 (en) | 2000-10-16 | 2002-04-18 | Henry Hung | Multiple wavelength Sagnac interferometer |
US6690687B2 (en) | 2001-01-02 | 2004-02-10 | Spectrasensors, Inc. | Tunable semiconductor laser having cavity with ring resonator mirror and mach-zehnder interferometer |
JP3360074B2 (ja) | 2001-03-08 | 2002-12-24 | 科学技術振興事業団 | 可変光波機能回路及び可変光波機能装置 |
US6765678B2 (en) | 2002-01-08 | 2004-07-20 | Honeywell International Inc. | Relative intensity noise controller with maximum gain at frequencies at or above the bias modulation frequency or with second order feedback for fiber light sources |
US6778279B2 (en) | 2002-02-19 | 2004-08-17 | Honeywell International, Inc. | Inline sagnac fiber optic sensor with modulation adjustment |
US20030169428A1 (en) | 2002-02-19 | 2003-09-11 | Honeywell International Inc. | Saw tooth bias modulation and loop closure for an interferometric fiber optic gyroscope |
US6885794B2 (en) | 2002-07-11 | 2005-04-26 | Lambda Crossing, Ltd. | Micro-ring resonator |
US20040061863A1 (en) | 2002-08-20 | 2004-04-01 | Digonnet Michel J.F. | Fiber optic sensors with reduced noise |
IL152195A0 (en) | 2002-10-09 | 2003-05-29 | Lambda Crossing Ltd | Tunable laser |
US7180598B2 (en) | 2002-11-13 | 2007-02-20 | The Charles Stark Draper Laboratory, Inc. | Photonic crystal interferometric fiber optical gyroscope system |
US7065276B2 (en) | 2003-04-03 | 2006-06-20 | Lambda Crossing Ltd. | Integrated optical filters utilizing resonators |
US7034946B2 (en) | 2003-05-06 | 2006-04-25 | Honeywell International Inc. | Fiber optic gyroscope sensing loop doubler |
US7038783B2 (en) | 2003-05-23 | 2006-05-02 | Honeywell International Inc. | Eigen frequency detector for Sagnac interferometers |
US7123800B2 (en) | 2004-03-02 | 2006-10-17 | Celight, Inc. | Integrated loop resonator with adjustable couplings and methods of using the same |
US7245381B2 (en) | 2004-12-20 | 2007-07-17 | Northrop Grumman Corporation | Ring laser gyroscope that does not require mirrors |
WO2006083691A1 (en) | 2005-01-28 | 2006-08-10 | Honeywell International, Inc. | Hollow core fiber optical gyro |
US7388671B2 (en) | 2005-10-18 | 2008-06-17 | Honeywell International, Inc. | Polarizing cavity for RFOG and method for sensing rotation rate of resonator |
US20070097374A1 (en) | 2005-11-01 | 2007-05-03 | Liu Ren-Young | IFOG modulation technique for real-time calibration of wavelength reference under harsh environment |
US7327460B2 (en) | 2005-11-02 | 2008-02-05 | Honeywell International, Inc. | Transmission mode RFOG and method for detecting rotation with RFOG |
US7362443B2 (en) | 2005-11-17 | 2008-04-22 | Honeywell International Inc. | Optical gyro with free space resonator and method for sensing inertial rotation rate |
US7372574B2 (en) | 2005-12-09 | 2008-05-13 | Honeywell International Inc. | System and method for stabilizing light sources in resonator gyro |
US7515272B2 (en) | 2006-03-17 | 2009-04-07 | Honeywell International Inc. | Digital feedback systems and methods for optical gyroscopes |
US7463360B2 (en) | 2006-04-18 | 2008-12-09 | Honeywell International Inc. | Optical resonator gyro with integrated external cavity beam generator |
US7583384B2 (en) | 2006-07-27 | 2009-09-01 | Honeywell International, Inc. | High resolution IOC drive and method for driving fiber optic gyroscopes |
US7522284B2 (en) | 2006-09-29 | 2009-04-21 | Honeywell International Inc. | Optical resonator gyro and method for reducing resonance asymmetry errors |
US20080079946A1 (en) | 2006-09-29 | 2008-04-03 | Honeywell International, Inc. | Digital intensity suppression for vibration and radiation insensitivity in a fiber optic gyroscope |
US7586619B2 (en) | 2006-12-21 | 2009-09-08 | Honeywell International, Inc. | Spectral balancing system and method for reducing noise in fiber optic gyroscopes |
US7855789B2 (en) | 2007-07-06 | 2010-12-21 | Honeywell International Inc. | RFOG modulation error correction |
US7802928B2 (en) | 2008-01-04 | 2010-09-28 | Honeywell International Inc. | System and method for fiber based resonator coupling |
JP5099696B2 (ja) * | 2008-03-24 | 2012-12-19 | 国立大学法人電気通信大学 | 広帯域離散スペクトル発生装置、及び、その周波数制御方法 |
JP5279008B2 (ja) | 2008-08-19 | 2013-09-04 | ミネベア株式会社 | 半導体リングレーザジャイロ |
JP5198185B2 (ja) | 2008-08-26 | 2013-05-15 | ミネベア株式会社 | 光ファイバジャイロ |
US7715663B2 (en) | 2008-08-29 | 2010-05-11 | Bae Systems Information And Electronic Systems Integration Inc. | Integrated optical latch |
US8446589B2 (en) | 2009-03-06 | 2013-05-21 | Honeywell International Inc. | Residual intensity modulation (RIM) control loop in a resonator fiber-optic gyroscope (RFOG) |
US8259301B2 (en) | 2009-03-06 | 2012-09-04 | Honeywell International Inc. | Cavity length modulation in resonator fiber optic gyroscopes |
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 |
US7864328B2 (en) | 2009-03-27 | 2011-01-04 | Honeywell International Inc. | Determination of optimum modulation amplitude to suppress modulation-distortation-induced rotation sensing errors in a fiber optic gyroscope |
US8294900B2 (en) | 2009-04-01 | 2012-10-23 | Honeywell International Inc. | Systems and methods for resonator fiber optic gyroscope intensity modulation control |
WO2010138741A1 (en) * | 2009-05-27 | 2010-12-02 | Analog Devices, Inc. | Position measurement systems using position sensitive detectors |
US7869052B2 (en) | 2009-06-05 | 2011-01-11 | Honeywell International Inc. | Method and amplifying stage for suppressing modulation distortion rate sensing errors in a resonator fiber optic gyroscope |
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 |
US7933020B1 (en) | 2009-12-13 | 2011-04-26 | Honeywell International Inc. | System and method for reducing laser phase noise in a resonator fiber optic gyroscope |
US8009296B2 (en) * | 2009-12-13 | 2011-08-30 | Honeywell International Inc. | Light-phase-noise error reducer |
US8149417B2 (en) | 2010-01-27 | 2012-04-03 | Honeywell International Inc. | Synchronous radiation hardened fiber optic gyroscope |
WO2011119232A2 (en) | 2010-03-23 | 2011-09-29 | Oewaves, Inc. | Optical gyroscope sensors based on optical whispering gallery mode resonators |
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 |
US8274659B2 (en) | 2010-08-30 | 2012-09-25 | Honeywell International Inc. | Resonator fiber optic gyroscopes with reduced rotation rate instability from back reflections |
US8213019B2 (en) | 2010-09-07 | 2012-07-03 | Honeywell International Inc. | RFOG with optical heterodyning for optical signal discrimination |
US8908187B2 (en) * | 2011-11-02 | 2014-12-09 | Honeywell International Inc. | System and method for reducing errors in a resonator fiber optic gyroscope |
US8659760B2 (en) * | 2012-04-12 | 2014-02-25 | Honeywell International Inc. | Resonator fiber optic gyroscope utilizing laser frequency combs |
-
2013
- 2013-02-22 US US13/774,678 patent/US8947671B2/en active Active
-
2014
- 2014-01-29 EP EP14153145.9A patent/EP2770298B1/en active Active
- 2014-02-21 CN CN201410059165.6A patent/CN104006809B/zh not_active Expired - Fee Related
- 2014-02-21 JP JP2014031494A patent/JP6426897B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
EP2770298B1 (en) | 2018-09-19 |
CN104006809B (zh) | 2018-04-27 |
US8947671B2 (en) | 2015-02-03 |
EP2770298A2 (en) | 2014-08-27 |
US20140240712A1 (en) | 2014-08-28 |
CN104006809A (zh) | 2014-08-27 |
EP2770298A3 (en) | 2014-11-26 |
JP2014163939A (ja) | 2014-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6426897B2 (ja) | 共振器光ファイバジャイロスコープにおけるレーザの数を削減するために光リング共振器の共振周波数と自由スペクトル領域を検出する方法及びシステム | |
US9115994B2 (en) | Systems and methods sideband heterodyning detection | |
JP6404656B2 (ja) | 共振器の自由スペクトルレンジのトラッキング/ロッキングの方法及び装置並びに共振器光ファイバジャイロスコープへの応用 | |
JP5208406B2 (ja) | 共振器ジャイロ内の光源を安定化させるシステムおよび方法 | |
US7933020B1 (en) | System and method for reducing laser phase noise in a resonator fiber optic gyroscope | |
EP3106835B1 (en) | Systems and methods for resonator fiber optic gyroscopes utilizing reference ring resonators | |
EP2221579B1 (en) | RFOG-modulation error correction | |
EP3173742B1 (en) | Resonator fiber optic gyroscope resonance detection demodulator reference phase corrector | |
US8213019B2 (en) | RFOG with optical heterodyning for optical signal discrimination | |
US8908187B2 (en) | System and method for reducing errors in a resonator fiber optic gyroscope | |
JP2014039027A (ja) | 透過モードおよび反射モードの帰還制御部を備えたレーザ | |
US8830479B2 (en) | RFOG with optical heterodyning for optical signal discrimination | |
EP2333483B1 (en) | System and method for reducing laser phase noise in a resonator fiber optic gyroscope | |
JP5351451B2 (ja) | Rfog変調エラー補正 | |
US20180328732A1 (en) | Systems and methods for dynamic bias offset operation in resonator fiber optic gyroscope | |
EP3617648B1 (en) | Hyperbolic modulation offset error reducer for an rfog | |
EP3783311A1 (en) | Sideband heterodyne switching for resonator fiber optic gyroscopes (rfogs) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20170216 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20171225 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20180129 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20180501 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20180927 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20181026 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6426897 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |