EP2342535A1 - Gyrolaser à milieu amplificateur à état solide et à cavité optique en anneau - Google Patents
Gyrolaser à milieu amplificateur à état solide et à cavité optique en anneauInfo
- Publication number
- EP2342535A1 EP2342535A1 EP09740149A EP09740149A EP2342535A1 EP 2342535 A1 EP2342535 A1 EP 2342535A1 EP 09740149 A EP09740149 A EP 09740149A EP 09740149 A EP09740149 A EP 09740149A EP 2342535 A1 EP2342535 A1 EP 2342535A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- energy
- deoile
- spherical mirror
- optical
- assembly
- 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.)
- Withdrawn
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 67
- 238000002347 injection Methods 0.000 claims abstract description 42
- 239000007924 injection Substances 0.000 claims abstract description 42
- 230000033001 locomotion Effects 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims description 3
- 230000003534 oscillatory effect Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 6
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000004137 mechanical activation Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 neodymium ions Chemical class 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
- G01C19/68—Lock-in prevention
- G01C19/70—Lock-in prevention by mechanical means
Definitions
- Laser gyroscopes or gyrolasers
- a gaseous amplifying medium which is usually a mixture of helium and neon.
- the excitation of the gaseous amplifying medium is then generally performed by creating a plasma in the gas, for example by generating a discharge between two electrodes which are mechanically secured to the cavity.
- the gaseous nature of the amplifying medium remains a source of technical complications when producing the laser gyro, in particular because of the high purity of gas required.
- it induces sources of laser aging, with a sensitivity to the sealing of the cavity, a degradation of some electrodes with the operation.
- a solid state amplifier gyrolaser in which the gaseous amplifying medium is replaced by a solid element, for example, by using neodymium ions in a YAG (Yttrium-aluminum-garnet) matrix, commonly noted.
- Nd YAG
- a crystalline matrix or a glass doped with ions belonging to the rare earth (Erbium, Ytterbium ...) class as the amplifying medium, but also a semiconductor material. This removes all problems inherent to the gaseous state of the amplifying medium.
- the fixing assembly comprises means for fixing the spherical mirror to maintain the position of the spherical mirror on the fixing assembly after adjustment of the energy injection.
- the laser gyro laser GL further comprises at least one external optical device for longitudinal injection of energy DEOILE in the solid state amplifier medium MAES.
- the laser gyro GL also comprises an EF fixing assembly adapted to make integral in translation and in rotation the assembly EE encompassing the optical cavity COA and the external optical device for longitudinal injection of energy.
- FIGS. 3 and 4 schematically illustrate two embodiments of an external optical device for longitudinal energy injection DEOILE according to FIG. 1 or 2.
- the portion of the fastening assembly EF serving as a support for the spherical mirror MS is inclined at approximately 45 ° with respect to the incident energy beam and is inclined at approximately 45 ° with respect to the reflected energy injection beam, in order to to reduce the inertia of the injection device with respect to the activation axis of the cavity while maintaining dimensions allowing a good focus while compensating for the geometric aberrations introduced by the optical device.
- the radius of curvature of the spherical mirror MS is between about 0.5 m and 4 m.
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)
- Lasers (AREA)
- Gyroscopes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0805984A FR2937739B1 (fr) | 2008-10-28 | 2008-10-28 | Gyrolaser a milieu amplificateur a etat solide et a cavite optique en anneau |
| PCT/EP2009/064043 WO2010049372A1 (fr) | 2008-10-28 | 2009-10-26 | Gyrolaser a milieu amplificateur a etat solide et a cavite optique en anneau. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2342535A1 true EP2342535A1 (fr) | 2011-07-13 |
Family
ID=40749146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09740149A Withdrawn EP2342535A1 (fr) | 2008-10-28 | 2009-10-26 | Gyrolaser à milieu amplificateur à état solide et à cavité optique en anneau |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8576403B2 (fr) |
| EP (1) | EP2342535A1 (fr) |
| CN (1) | CN102177412B (fr) |
| CA (1) | CA2737584A1 (fr) |
| FR (1) | FR2937739B1 (fr) |
| RU (1) | RU2540452C2 (fr) |
| WO (1) | WO2010049372A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2937740B1 (fr) * | 2008-10-28 | 2010-10-29 | Thales Sa | Dispositif et procede de mise en vibration d'un element solide amplificateur au sein d'un gyrolaser |
| CN103047979B (zh) * | 2011-10-13 | 2015-04-08 | 中国计量科学研究院 | 被动型激光陀螺 |
| CN103278150B (zh) * | 2013-05-10 | 2015-10-28 | 浙江大学 | 一种检测角速度的光载微波陀螺方法 |
| RU2617541C1 (ru) * | 2015-11-24 | 2017-04-25 | Акционерное общество "Концерн Радиоэлектронные технологии" (АО "КРЭТ") | Кольцевой лазер |
| CN108474660B (zh) * | 2015-11-27 | 2022-04-01 | 塔莱斯公司 | 能够测量旋转速度的在芯片上被设阱的冷原子的传感器 |
| CN106197953B (zh) * | 2016-08-23 | 2019-01-01 | 中国航空工业集团公司西安飞行自动控制研究所 | 一种通用型激光陀螺反射镜在线测量装置 |
| US10739137B2 (en) | 2018-08-17 | 2020-08-11 | Honeywell International Inc. | Solid state ring laser gyroscope using rare-earth gain dopants in glassy hosts |
| US10907966B2 (en) * | 2019-06-18 | 2021-02-02 | Honeywell International Inc. | Solid state ring laser gyroscope having a primary cavity and a pumping cavity |
| US11476633B2 (en) | 2020-07-20 | 2022-10-18 | Honeywell International Inc. | Apparatus and methods for stable bidirectional output from ring laser gyroscope |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3102953A (en) * | 1958-07-09 | 1963-09-03 | Maxson Electronics Corp | Electromagnetic wave gyroscopes or angular velocity measuring systems |
| US4525843A (en) * | 1982-04-29 | 1985-06-25 | The United States Of America As Represented By The Secretary Of The Navy | Ring laser with wavefront conjugating beams |
| US4536087A (en) * | 1983-06-08 | 1985-08-20 | The Singer Company | Dither compensator for ring laser gyroscope |
| US4807999A (en) * | 1986-03-13 | 1989-02-28 | Rockwell International Corporation | Two source passive ring laser gyroscope |
| US4815852A (en) * | 1986-03-26 | 1989-03-28 | Russell Robert B | Apparatus for measuring rotation by a combination of the Sagnac and Fizeau effects |
| US4844615A (en) * | 1987-01-30 | 1989-07-04 | Litton Systems, Inc. | Method and system for correcting random walk errors induced by rate reversals in a dithered ring laser gyroscope |
| US5177764A (en) * | 1989-12-28 | 1993-01-05 | Harmonic Lightwaves, Inc. | Unidirectional, planar ring laser with birefringence |
| US5367377A (en) * | 1990-04-20 | 1994-11-22 | Litton Systems, Inc. | Solid state split-gain multioscillator ring laser gyroscope |
| US5408492A (en) * | 1993-05-21 | 1995-04-18 | Smiths Industries Aerospace & Defense Systems, Inc. | Solid medium optical ring laser rotation sensor |
| US5579110A (en) * | 1994-08-31 | 1996-11-26 | Honeywell Inc. | In-line multiple rotation sensor assembly |
| US6650682B1 (en) * | 1999-04-30 | 2003-11-18 | University Of New Mexico | Bi-directional short pulse ring laser |
| FR2853061B1 (fr) * | 2003-03-25 | 2006-01-20 | Thales Sa | Gyrolaser a etat solide stabilise |
-
2008
- 2008-10-28 FR FR0805984A patent/FR2937739B1/fr not_active Expired - Fee Related
-
2009
- 2009-10-26 EP EP09740149A patent/EP2342535A1/fr not_active Withdrawn
- 2009-10-26 WO PCT/EP2009/064043 patent/WO2010049372A1/fr not_active Ceased
- 2009-10-26 US US13/126,437 patent/US8576403B2/en not_active Expired - Fee Related
- 2009-10-26 CA CA2737584A patent/CA2737584A1/fr not_active Abandoned
- 2009-10-26 CN CN200980140002.8A patent/CN102177412B/zh not_active Expired - Fee Related
- 2009-10-26 RU RU2011121663/28A patent/RU2540452C2/ru not_active IP Right Cessation
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2010049372A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US8576403B2 (en) | 2013-11-05 |
| CA2737584A1 (fr) | 2010-05-06 |
| FR2937739A1 (fr) | 2010-04-30 |
| RU2011121663A (ru) | 2012-12-10 |
| US20110235047A1 (en) | 2011-09-29 |
| CN102177412A (zh) | 2011-09-07 |
| WO2010049372A1 (fr) | 2010-05-06 |
| CN102177412B (zh) | 2014-05-28 |
| RU2540452C2 (ru) | 2015-02-10 |
| FR2937739B1 (fr) | 2010-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20110325 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: FEUGNET, GILLES Inventor name: SCHWARTZ, SYLVAIN Inventor name: GUTTY, FRANCOIS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20171207 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20180418 |