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1. 发明公开

EP2342535A1 GYROLASER À MILIEU AMPLIFICATEUR À ÉTAT SOLIDE ET À CAVITÉ OPTIQUE EN ANNEAU 审中-公开
标题翻译：与固体增益介质和光学环形谐振器激光陀螺
公开(公告)号：EP2342535A1
公开(公告)日：2011-07-13
申请号：EP09740149.1
申请日：2009-10-26
申请人： THALES
发明人： GUTTY, François , FEUGNET, Gilles , SCHWARTZ, Sylvain
IPC分类号： G01C19/66 , G01C19/70 , G01C19/72
CPC分类号： G01C19/66 , G01C19/70
摘要： The laser gyro having a solid-state amplifying medium (MAES) and an optical ring cavity (COA) comprises an assembly (EE) containing the optical cavity (COA) and capable of undergoing an oscillatory rotational movement, together with at least one external longitudinal optical energy injection device (DEOILE) for injecting energy into the solid-state amplifying medium (MAES). The laser gyro also includes a fastening assembly (EF) designed to make said assembly (EE) containing the optical cavity and said external longitudinal optical energy injection device (DEOILE) undergo translational and rotational movement as one entity.

2. 发明授权

EP1797396B1 GYROLASER A ETAT SOLIDE A FACTEUR D'ECHELLE STABILISE 有权
标题翻译： GYROLASER A ETAT固定在ðD'ECHELLE稳定
公开(公告)号：EP1797396B1
公开(公告)日：2011-03-16
申请号：EP05801598.3
申请日：2005-10-06
申请人： THALES, @
发明人： FEUGNET, Gilles , SCHWARTZ, Sylvain , POCHOLLE, Jean-Paul , LARAT, Christian , GUTTY, François
IPC分类号： G01C19/66
CPC分类号： G01C19/66
摘要： The invention relates to solid-state laser gyroscopes for measuring rotational speeds or angular positions which are used, in particular for aircraft engineering. A gyroscope performances depend on the temperature stability of the scale factor thereof (S) which is 4A/μL, wherein L and A are the optical length and the area of the laser cavity, respectively and μ is a laser emission mean wavelength without the Sagnac effect. Conventionally, for gas lasers, each parameter of the scale factor is selected in such a way that it is temperature independent. The solid state lasers which are very different from the gas lasers are not treatable in the same manner. Said invention offers the laser cavity optical architecture based on the scale factor global conservation, wherein each parameter is temperature variable. An architecture which makes it possible to avoid optical mode hopes and several digital examples proving that inventive principles are applicable to standard materials are also disclosed.
摘要翻译：本发明涉及用于测量尤其用于飞机工程的旋转速度或角位置的固态激光陀螺仪。陀螺仪性能取决于其比例因子（S）的温度稳定性，其为4A /μL，其中L和A分别是光学长度和激光腔的面积，μ是没有Sagnac的激光发射平均波长影响。通常，对于气体激光器，比例因子的每个参数都是以与温度无关的方式选择的。与气体激光器非常不同的固态激光器不能以相同的方式处理。本发明提供了基于比例因子全局守恒的激光腔光学结构，其中每个参数是温度可变的。还公开了可以避免光学模式希望的体系结构和证明发明原理适用于标准材料的几个数字示例。

3. 发明公开

EP1807675A2 GYROLASER A MILIEU SOLIDE SEMI-CONDUCTEUR A STRUCTURE VERTICALE 审中-公开
标题翻译：采用立式结构SEMICONDUCTOR SOLID-陀螺激光器
公开(公告)号：EP1807675A2
公开(公告)日：2007-07-18
申请号：EP05804595.6
申请日：2005-10-26
申请人： THALES
发明人： FEUGNET, Gilles , POCHOLLE, Jean-Paul , SCHWARTZ, Sylvain
IPC分类号： G01C19/66 , H01S5/183 , H01S5/14 , H01S5/10
CPC分类号： H01S5/183 , H01S5/1071 , H01S5/141
摘要： The field of the invention concerns that of solid-state gyrolasers used in inertial navigation systems. This type of equipment is particularly used for aeronautical applications. It is possible to realize a solid-state gyrolaser from optically or electrically pumped semiconductor media. Existing gyrolasers of this last type are monolithic and have reduced sizes. They do not make it possible, on the one hand, to achieve levels of precision comparable to those of gas gyrolasers and, on the other, to implement optical methods for suppressing the frequency coupling at low rotational speeds or the temperature drifts. The invention relates to a solid-state gyrolaser comprising a semiconductor medium and constituted of assembled discrete elements thus offering the possibility to realize large-size cavities making it possible to achieve the desired levels of precision. More precisely, the gyrolaser comprises a ring optical cavity and an external cavity semiconductor amplifying medium having a vertical structure comprising a stack of gain regions that are planar and parallel to one another, the dimensions of the cavity being noticeably greater than those of the amplifying medium, said amplifying medium being used in reflection.

4. 发明公开

EP1960737A1 GYROLASER A ETAT SOLIDE A MODES CONTRE-PROPAGATIFS ORTHOGONAUX 审中-公开
标题翻译：采用正交半导体激光陀螺仪是OPPOSITE传播模式
公开(公告)号：EP1960737A1
公开(公告)日：2008-08-27
申请号：EP06830453.4
申请日：2006-12-07
申请人： Thales
发明人： SCHWARTZ, Sylvain , FEUGNET, Gilles , POCHOLLE, Jean-Paul , MIGNOT, Augustin , STEINHAUSSER, Bastien
IPC分类号： G01C19/66
CPC分类号： G01C19/66
摘要： The invention concerns solid-state laser gyros used in inertial navigation unit. However, the design of this type of laser gyros involves some technical difficulties related partly to the fact that the counter-propagating waves interfere in the amplifying medium. The inventive laser gyro comprises at least one solid-state amplifying medium (2) and one ring optical cavity (1) including first optical means (4) enabling a first common linear polarization state to be imparted to the two counter-propagating optical waves in input and output of the zone containing the amplifying medium and second optical means (30, 31) enabling, inside the amplifying medium, a second linear polarization state to be imparted to the first optical wave and a third linear polarization state to the second optical wave, said polarization states being perpendicular, thereby eliminating all the inconveniences related to interferences.

5. 发明公开

EP1797396A1 GYROLASER A ETAT SOLIDE A FACTEUR D'ECHELLE STABILISE 有权
标题翻译：比例因子稳定的固态激光陀螺
公开(公告)号：EP1797396A1
公开(公告)日：2007-06-20
申请号：EP05801598.3
申请日：2005-10-06
申请人： THALES, ?
发明人： FEUGNET, Gilles , SCHWARTZ, Sylvain , POCHOLLE, Jean-Paul , LARAT, Christian , GUTTY, François
IPC分类号： G01C19/66
CPC分类号： G01C19/66
摘要： The invention relates to solid-state laser gyroscopes for measuring rotational speeds or angular positions which are used, in particular for aircraft engineering. A gyroscope performances depend on the temperature stability of the scale factor thereof (S) which is 4A/μL, wherein L and A are the optical length and the area of the laser cavity, respectively and μ is a laser emission mean wavelength without the Sagnac effect. Conventionally, for gas lasers, each parameter of the scale factor is selected in such a way that it is temperature independent. The solid state lasers which are very different from the gas lasers are not treatable in the same manner. Said invention offers the laser cavity optical architecture based on the scale factor global conservation, wherein each parameter is temperature variable. An architecture which makes it possible to avoid optical mode hopes and several digital examples proving that inventive principles are applicable to standard materials are also disclosed.

6. 发明公开

EP3380808A1 CAPTEUR A ATOMES FROIDS PIEGES SUR PUCE PERMETTANT UNE MESURE DE VITESSE DE ROTATION 有权
公开(公告)号：EP3380808A1
公开(公告)日：2018-10-03
申请号：EP16801231.8
申请日：2016-11-24
申请人： THALES
发明人： DUPONT-NIVET, Matthieu , SCHWARTZ, Sylvain
IPC分类号： G01C19/60 , G21K1/00 , H05H3/00 , G01C19/64
CPC分类号： H05H3/00 , G01C19/64
摘要： Ultracold atoms sensor allowing rotational velocity to be measured about a measurement axis (14), said sensor comprising: means suitable for generating first and second ultracold atom traps (T1, T2), one trap allowing a cloud of ultracold atoms (12) to be immobilised in an internal state different from the other trap, at a preset distance from said measurement plane, said means comprising ◊ at least first and second waveguides (CPW1, CPW2) that are suitable for propagating microwaves with angular frequencies ωa and ωb, said waveguides being non-secant and placed symmetrically with respect to an axis called the axis of symmetry (Sy), ◊ and conductive wires integrated into said chip (1) and suitable for passing DC currents; said means being configured to modify the energy of said ultracold atoms so as to create a potential minima for the ultracold atoms in the internal state |a> and a potential minima for the ultracold atoms in the internal state |b>, thus forming said first and second ultracold atom traps, and to move said traps (T1, T2) along a closed path (16), said path being traced in one direction by the ultracold atoms of the first trap and in the opposite direction by the ultracold atoms of the second trap.

7. 发明公开

EP2232200A1 GYROLASER MULTIOSCILLATEUR A ETAT SOLIDE UTILISANT UN MILIEU A GAIN CRISTALLIN COUPE A<100> 审中-公开
标题翻译： GYROLASER MULTIOSCILLATEUR A ETAT SOLIDE UTILISANT UN MILIEU A GAIN CRISTALLIN COUPE A <100>
公开(公告)号：EP2232200A1
公开(公告)日：2010-09-29
申请号：EP08861203.1
申请日：2008-12-01
申请人： THALES
发明人： SCHWARTZ, Sylvain , FEUGNET, Gilles , POCHOLLE, Jean-Paul
IPC分类号： G01C19/66
CPC分类号： G01C19/66 , G01C19/667
摘要： The invention relates to a “multi-oscillating” gyrolaser for measuring the angular speed or the relative angular position about a rotation axis, that comprises at least one annular optical cavity (1) and a solid-state amplifying medium (2) as well as a measuring device (6) arranged so that a first linear-polarisation propagation mode and a second linear-polarisation propagation mode perpendicular to the first mode can propagate in a first direction in the cavity, and so that a third linear-polarisation propagation mode parallel to the first mode and a fourth linear-polarisation propagation mode parallel to the second mode can propagate in the reverse direction in the cavity. The amplification medium is a cubic-symmetry crystal having an inlet face and an outlet face, said faces being substantially perpendicular to the crystallographic direction, and the different modes propagating in directions substantially perpendicular to said faces.
摘要翻译：本发明涉及一种用于测量围绕旋转轴的角速度或相对角位置的“多摆动”的陀螺激光器，其包括至少一个环形光腔（1）和固态放大介质（2）以及测量装置（6），其布置成使得垂直于第一模式的第一线性偏振传播模式和第二线性偏振传播模式可以在空腔中沿第一方向传播，并且使得第三线性偏振传播模式并行到第一模式并且平行于第二模式的第四线性极化传播模式可以在空腔中以相反方向传播。放大介质是具有入口面和出口面的立方对称晶体，所述面基本垂直于晶体方向，并且不同的模式在基本上垂直于所述面的方向上传播。

8. 发明公开

EP1960738A1 GYROLASER A ETAT SOLIDE ACTIVE OPTIQUEMENT PAR BIAIS ALTERNATIF 审中-公开
标题翻译： BY替代偏置有源光半导体激光陀螺仪
公开(公告)号：EP1960738A1
公开(公告)日：2008-08-27
申请号：EP06819925.6
申请日：2006-12-07
申请人： THALES
发明人： SCHWARTZ, Sylvain , FEUGNET, Gilles , POCHOLLE, Jean-Paul
IPC分类号： G01C19/68
CPC分类号： G01C19/68
摘要： The invention concerns solid-state laser gyros used for measuring relative rotational speeds or angular positions. This type of equipment is used in particular for aeronautical applications. The invention aims at complement the optical devices required for controlling the instability of lasers through specific optical devices enabling the blind zone and the population inversion gratings present in the amplifying medium to be eliminated. Thus an all-optical solid-state laser without moving parts, stable and free of blind zone is obtained. For this purpose, the inventive laser gyro comprises in particular: an optical assembly (5) enabling an optical phase shift non-reciprocal between the counter-propagating modes to be introduced; control means (6) enabling the amplitude of the phase shift to be periodically varied around a very substantially zero average value.

9. 发明公开

EP3228987A1 GYROMETRE OPTIQUE RESONANT COMPACT A TROIS FREQUENCES 有权转让
标题翻译：具有三个频率的紧凑型共振光学测微计
公开(公告)号：EP3228987A1
公开(公告)日：2017-10-11
申请号：EP17164910.6
申请日：2017-04-05
申请人： THALES , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , Ecole Normale Supérieure de Cachan
发明人： SCHWARTZ, Sylvain , FEUGNET, Gilles , BRIGNON, Aranud , BRETENAKER, Fabien
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： L'invention concerne un gyromètre optique passif résonnant (50) comprenant une cavité (C) et fonctionnant avec trois fréquences, et comprenant :
-un premier laser d'injection (L1) configuré pour injecter un premier faisceau optique (F1) dans la cavité dans un premier sens,
-un deuxième laser d'injection (L2) configuré pour injecter un deuxième faisceau optique (F2) dans la cavité selon un sens opposé au premier sens,
- un troisième laser d'injection (L3) configuré pour injecter un troisième faisceau optique (F3) dans la cavité selon l'un des deux sens précités,
un laser parmi l'un des lasers d'injection étant choisi comme laser maître (L1) présentant une fréquence maître (f1), les deux autres laser d'injection étant dénommés respectivement premier (L2) et deuxième (L3) lasers esclaves présentant respectivement une première (f2) et une deuxième (f3) fréquence esclave,
-un dispositif d'asservissement maître (DA1)
-un premier étage d'asservissement comprenant un premier (D2) et un deuxième (D3) dispositif esclave,
- un deuxième étage d'asservissement comprenant un premier (OPLL2-1) et un deuxième (OPLL3-1) dispositif de verrouillage de phase optique comprenant respectivement un premier (Osc2) et un deuxième (Osc3) oscillateur esclaves configurés pour générer un premier et d'un deuxième signal de décalage radiofréquence.
摘要翻译：本发明涉及一种谐振无源光学陀螺仪（50），其包括以三个频率工作的空腔（C），并且包括：第一注入激光器（L1），其被配置为将第一光束（F1）在第一方向上，-a第二注入式激光器（L2），被配置在与第一方向相反的方向注入所述空腔中的第二光束（F2）， - 第三注入式激光器（L3）构造成喷射根据上述两个方向中的一个方向在空腔中产生第三光束（F3），其中一个注入激光器中的激光器被选为具有主频率（f1）的主激光器（L1），另外两个激光器分别表示分别具有第一（f2）和第二（f3）从频率的第一（L2）和第二（L3）从激光器的注入 - 主伺服装置（DA1） - 第一伺服级包括 NT第一（D2）和第二（D3）的从设备， - 包括第一（OPLL2-1）和第二（OPLL3-1）光学相位锁定装置分别包括第一（OSC2的第二控制级）和被配置为产生第一和第二射频偏移信号的第二（Osc3）振荡器从机。

10. 发明授权

EP1797396B8 GYROLASER A ETAT SOLIDE A FACTEUR D'ECHELLE STABILISE 有权
标题翻译：比例因子稳定的固态激光陀螺
公开(公告)号：EP1797396B8
公开(公告)日：2011-05-04
申请号：EP05801598.3
申请日：2005-10-06
申请人： THALES
发明人： FEUGNET, Gilles , SCHWARTZ, Sylvain , POCHOLLE, Jean-Paul , LARAT, Christian , GUTTY, François
IPC分类号： G01C19/66
CPC分类号： G01C19/66
摘要： The invention relates to solid-state laser gyroscopes for measuring rotational speeds or angular positions which are used, in particular for aircraft engineering. A gyroscope performances depend on the temperature stability of the scale factor thereof (S) which is 4A/μL, wherein L and A are the optical length and the area of the laser cavity, respectively and μ is a laser emission mean wavelength without the Sagnac effect. Conventionally, for gas lasers, each parameter of the scale factor is selected in such a way that it is temperature independent. The solid state lasers which are very different from the gas lasers are not treatable in the same manner. Said invention offers the laser cavity optical architecture based on the scale factor global conservation, wherein each parameter is temperature variable. An architecture which makes it possible to avoid optical mode hopes and several digital examples proving that inventive principles are applicable to standard materials are also disclosed.

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