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公开(公告)号：US07446879B2
公开(公告)日：2008-11-04
申请号：US10556795
申请日：2004-04-28
申请人： Gilles Feugnet , Didier Rolly , Jean-Paul Pocholle
发明人： Gilles Feugnet , Didier Rolly , Jean-Paul Pocholle
IPC分类号： G01C19/66
CPC分类号： G01C19/66
摘要： The field of the invention is that of solid-state laser gyros. One of the major problems inherent in this technology is that the optical cavity of this type of laser gyro is by nature highly unstable. To reduce this instability, controlled optical are introduced into the cavity that depend on the direction of propagation by using acoustooptic devices. Several devices are described, employing different configurations of acoustooptic devices. These devices apply in particular to laser gyros having monolithic cavities, and in particular to neodymium-doped YAG laser gyros.
摘要翻译： 本发明的领域是固体激光陀螺仪的领域。 该技术固有的主要问题之一是这种激光陀螺仪的光腔本质上是不稳定的。 为了减少这种不稳定性，通过使用声光器件将受控光学器件引入到依赖于传播方向的空腔中。 描述了几种设备，其采用不同配置的声光设备。 这些装置特别适用于具有单片腔的激光陀螺仪，特别是掺钕钇YAG激光陀螺仪。
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公开(公告)号：US08301407B2
公开(公告)日：2012-10-30
申请号：US12820940
申请日：2010-06-22
CPC分类号： G01C19/66
摘要： Solid-state gyrolaser having a device for stabilizing the intensities making it possible to maintain equilibrium of the two counter-propagating modes having at least a means for calculating a rotation measurement (Ω, IΩ) of the gyrolaser on the basis of the counter-propagating modes having a frequency difference (Δνmes) between them, by assuming that the frequency difference (Δνmes) between the two counter-propagating modes is induced only by the rotation of the cavity. The gyrolaser also includes a means for measuring the control command (Co), a means for storing a behavior model (Mo) of a frequency bias (Δνb) induced by the device for stabilizing the intensities, as a function of the control command, a means for calculating the frequency bias (Δνb) induced by the device for stabilizing the intensities, on the basis of the value of the control command (Co) and the model (Mo), a means for calculating the bias (ΔΩb, ΔIΩb) in the rotation measurement (Ω, IΩ), induced by the frequency bias (Δνb), and a means for compensating for the bias (ΔΩb, ΔIΩb) in the rotation measurement (Ω, IΩ).
摘要翻译： 固体陀螺仪具有用于稳定强度的装置，使得可以保持两个反向传播模式的平衡，其具有至少一种用于基于计数器计算陀螺仪的旋转测量（＆amp; OHgr，I＆OHgr）的装置 通过假设两个反向传播模式之间的频率差（＆Dgr;＆ngr; mes）仅由腔的旋转引起，它们之间具有频率差（＆Dgr;＆sgr; mes）的传播模式。 陀螺仪还包括用于测量控制命令（Co）的装置，用于存储由装置引起的用于稳定强度的频率偏差（＆Dgr;＆ngr; b）的行为模型（Mo）的装置，作为 控制指令，用于根据控制指令（Co）和模型（Mo）的值计算用于稳定强度的装置引起的频率偏差（＆Dgr;＆ngr; b）的装置，用于计算 偏置（＆Dgr;＆OHgr; b，＆Dgr; I＆OHgr; b）在频率偏差（＆Dgr;＆ngr; b）诱发的旋转测量（＆OHgr; I＆OHgr;）中）和补偿偏差 ;＆OHgr; b，＆Dgr; I＆OHgr; b）在旋转测量（＆OHgr; I＆OHgr）中。
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公开(公告)号：US20060285118A1
公开(公告)日：2006-12-21
申请号：US10556795
申请日：2004-04-28
申请人： Gilles Feugnet , Didier Rolly , Jean-Paul Pocholle
发明人： Gilles Feugnet , Didier Rolly , Jean-Paul Pocholle
IPC分类号： G01C19/66
CPC分类号： G01C19/66
摘要： The field of the invention is that of solid-state laser gyros. One of the major problems inherent in this technology is that the optical cavity of this type of laser gyro is by nature highly unstable. To reduce this instability, the invention proposes to introduce, into the cavity, controlled optical losses that depend on the direction of propagation by using acoustooptic devices. Several devices are described, employing different configurations of acoustooptic devices. These devices apply in particular to laser gyros having monolithic cavities, and in particular to neodymium-doped YAG laser gyros.
摘要翻译： 本发明的领域是固体激光陀螺仪的领域。 该技术固有的主要问题之一是这种激光陀螺仪的光腔本质上是不稳定的。 为了减少这种不稳定性，本发明提出通过使用声光装置将依赖于传播方向的受控光学损耗引入空腔。 描述了几种设备，其采用不同配置的声光设备。 这些装置特别适用于具有单片腔的激光陀螺仪，特别是掺钕钇YAG激光陀螺仪。
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公开(公告)号：US06961360B2
公开(公告)日：2005-11-01
申请号：US10069599
申请日：2001-06-12
CPC分类号： H01S3/09415 , H01S3/0672 , H01S3/06729 , H01S3/08045 , H01S3/094057 , H01S5/005 , H01S5/4025
摘要： A longitudinally pumped laser including one or more active lasing media arranged in an optical laser cavity and at least one pumping device emitting at least one pumping beam toward the at least one active lasing medium. The pumped beam or beams is coupled with the active medium. At least one of the active lasing media includes one or more non-homogeneously doped zones, and the dimension of the doped zones and/or the distribution of the dopants is chosen on the basis of the desired transverse mode of the laser cavity. Such a laser can be used as an amplifier.
摘要翻译： 一种纵向泵浦的激光器，包括布置在光学激光器腔中的一个或多个激活的激光介质和至少一个泵送装置，其朝向至少一个主动激光介质发射至少一个泵浦光束。 泵浦的束或束与活性介质耦合。 活性激光介质中的至少一个包括一个或多个非均匀掺杂区，并且基于激光腔的期望横向模式选择掺杂区的尺寸和/或掺杂剂的分布。 这样的激光器可以用作放大器。
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公开(公告)号：US07548572B2
公开(公告)日：2009-06-16
申请号：US10550514
申请日：2004-03-23
IPC分类号： H01S3/083
CPC分类号： G01C19/661 , H01S3/0604 , H01S3/0606 , H01S3/0621 , H01S3/0627 , H01S3/08059 , H01S3/083 , H01S3/136 , H01S3/139
摘要： The field of the invention is that of solid-state laser gyros. One of the major problems inherent in this technology is that the optical cavity of this type of laser is by its nature highly unstable. To reduce this instability, the invention proposes to introduce controlled optical losses into the cavity that depend on the polarization direction by placing in the cavity an optical assembly comprising a polarizing element, a first element exhibiting a reciprocal effect that acts on the polarization of the wave and a second element exhibiting a nonreciprocal effect that also acts on the polarization of the wave, at least one of these two effects being variable, and to electronically slave these losses to the difference in intensity between the counterpropagating modes. Several devices are described that implement either fixed reciprocal effects combined with variable nonreciprocal effects, or vice versa. These devices apply in particular to monolithic cavity lasers and especially to lasers of the neodymium-doped YAG type and also to fiber cavity lasers.
摘要翻译： 本发明的领域是固体激光陀螺仪的领域。 该技术固有的主要问题之一是这种激光器的光学腔由于其本质上非常不稳定。 为了减少这种不稳定性，本发明提出通过将包含偏振元件的光学组件放置在腔体中来引入受限的光学损耗，所述光学损耗依赖于偏振方向，第一元件具有作用于波的极化的相互作用 以及表现出非常相互影响的第二个元件，其也作用于波的极化，这两个效应中的至少一个是可变的，并且将这些损耗电子地从这些损耗中排除到反向传播模式之间的强度差。 描述了实现固定互惠效应与可变非互逆效应相结合的几个装置，反之亦然。 这些器件特别适用于单片腔激光器，特别适用于钕掺杂YAG型激光器以及光纤腔激光器。
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公开(公告)号：US20060256828A1
公开(公告)日：2006-11-16
申请号：US10550514
申请日：2004-03-23
CPC分类号： G01C19/661 , H01S3/0604 , H01S3/0606 , H01S3/0621 , H01S3/0627 , H01S3/08059 , H01S3/083 , H01S3/136 , H01S3/139
摘要： The field of the invention is that of solid-state laser gyros. One of the major problems inherent in this technology is that the optical cavity of this type of laser is by its nature highly unstable. To reduce this instability, the invention proposes to introduce controlled optical losses into the cavity that depend on the polarization direction by placing in the cavity an optical assembly comprising a polarizing element, a first element exhibiting a reciprocal effect that acts on the polarization of the wave and a second element exhibiting a nonreciprocal effect that also acts on the polarization of the wave, at least one of these two effects being variable, and to electronically slave these losses to the difference in intensity between the counterpropagating modes. Several devices are described that implement either fixed reciprocal effects combined with variable nonreciprocal effects, or vice versa. These devices apply in particular to monolithic cavity lasers and especially to lasers of the neodymium-doped YAG type and also to fiber cavity lasers.
摘要翻译： 本发明的领域是固体激光陀螺仪的领域。 该技术固有的主要问题之一是这种激光器的光学腔由于其本质上非常不稳定。 为了减少这种不稳定性，本发明提出通过将包含偏振元件的光学组件放置在腔体中来引入受限的光学损耗，所述光学损耗依赖于偏振方向，第一元件具有作用于波的极化的相互作用 以及表现出非常相互影响的第二个元件，其也作用于波的极化，这两个效应中的至少一个是可变的，并且将这些损耗电子地从这些损耗中排除到反向传播模式之间的强度差。 描述了实现固定互惠效应与可变非互逆效应相结合的几个装置，反之亦然。 这些器件特别适用于单片腔激光器，特别适用于钕掺杂YAG型激光器以及光纤腔激光器。
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27.发明授权公开(公告)号：US08576403B2
公开(公告)日：2013-11-05
申请号：US13126437
申请日：2009-10-26
申请人： François Gutty , Gilles Feugnet , Sylvain Schwartz
发明人： François Gutty , Gilles Feugnet , Sylvain Schwartz
IPC分类号： G01C19/66
摘要： A laser gyro having a solid-state amplifying medium and an optical ring cavity includes an assembly encompassing the optical cavity and able to experience an oscillating rotational motion, as well as at least one external optical device for longitudinal injection of energy into the solid-state amplifying medium. The laser gyro also includes a fixing assembly adapted for translationally and rotationally binding said assembly encompassing the optical cavity and said external optical device for longitudinal injection of energy.
摘要翻译： 具有固态放大介质和光环腔的激光陀螺仪包括包围光腔并能够经受振荡旋转运动的组件，以及用于将能量纵向注入固态的至少一个外部光学装置 放大介质。 激光陀螺仪还包括固定组件，其适于平移和旋转地结合包围光学腔的所述组件和所述外部光学装置，用于纵向注入能量。
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28.发明申请公开(公告)号：US20110235047A1
公开(公告)日：2011-09-29
申请号：US13126437
申请日：2009-10-26
申请人： François Gutty , Gilles Feugnet , Sylvain Schwartz
发明人： François Gutty , Gilles Feugnet , Sylvain Schwartz
摘要： A laser gyro having a solid-state amplifying medium and an optical ring cavity includes an assembly encompassing the optical cavity and able to experience an oscillating rotational motion, as well as at least one external optical device for longitudinal injection of energy into the solid-state amplifying medium. The laser gyro also includes a fixing assembly adapted for translationally and rotationally binding said assembly encompassing the optical cavity and said external optical device for longitudinal injection of energy.
摘要翻译： 具有固态放大介质和光环腔的激光陀螺仪包括包围光腔并能够经受振荡旋转运动的组件，以及用于将能量纵向注入固态的至少一个外部光学装置 放大介质。 激光陀螺仪还包括固定组件，其适于平移和旋转地结合包围光学腔的所述组件和所述外部光学装置，用于纵向注入能量。
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公开(公告)号：US5838710A
公开(公告)日：1998-11-17
申请号：US713209
申请日：1996-09-12
申请人： Christian Larat , Gilles Feugnet , Muriel Schwarz
发明人： Christian Larat , Gilles Feugnet , Muriel Schwarz
IPC分类号： H01S3/06 , H01S3/0941 , H01S3/23 , H01S3/09
CPC分类号： H01S3/2325 , H01S3/06 , H01S3/0941
摘要： Disclosed is an optical amplification device comprising an amplifier medium inserted between two mirrors and an optical pumping source. The mirrors are confocal mirrors whose focal plane is located in the vicinity of the center of the non-linear medium. This medium has a match-stick shape with a large axis in one direction forming an angle alpha/2 with the optical axis of the cavity defined by the two mirrors and the amplifier medium. This architecture enables an incident optical wave to pass several times within the amplification device leading to an increase in the performance characteristics of said device.
摘要翻译： 公开了一种光放大装置，包括插入在两个反射镜和光泵浦源之间的放大器介质。 镜子是焦平面位于非线性介质中心附近的共聚焦镜。 该介质具有在一个方向上具有大轴的匹配棒形状，其中由两个反射镜和放大器介质限定的空腔的光轴形成角度α/ 2。 该架构使得入射光波在放大装置内通过数次，导致所述装置的性能特性的增加。
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