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公开(公告)号：US20180081112A1
公开(公告)日：2018-03-22
申请号：US15591747
申请日：2017-05-10
发明人： Matthew Wade Puckett , Tiequn Qiu , Mary K. Salit , Jianfeng Wu
CPC分类号： G02B6/122 , G01C19/661 , G02B6/136 , G02B2006/12138 , G02F1/025 , G02F1/125 , G02F1/353 , G10K11/24
摘要： A waveguide device comprises a substrate having an upper surface and a first width; a cladding layer over the upper surface of the substrate, the cladding layer comprising a first material having a first refractive index, wherein the cladding layer has a second width that is less than the first width; and an optical core surrounded by the cladding layer, the optical core comprising a second material having a second refractive index that is higher that the first refractive index such that an optical signal will propagate through the optical core. The cladding layer that surrounds the optical core has a thickness configured to substantially confine acoustic waves to the cladding layer when the optical signal propagates through the optical core.
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公开(公告)号：US09581448B2
公开(公告)日：2017-02-28
申请号：US14262089
申请日：2014-04-25
IPC分类号： G01C19/66 , G01P15/093 , G01C19/72
CPC分类号： G01C19/661 , G01C19/66 , G01C19/72 , G01P15/093
摘要： A method for enhancing a sensitivity of an optical sensor having an optical cavity counter-propagates beams of pump light within the optical cavity to produce scattered light based on Stimulated Brillouin Scattering (SBS). The properties of the pump light are selected to generate fast-light conditions for the scattered light, such that the scattered light includes counter-propagating beams of fast light. The method prevents the pump light from resonating within the optical cavity, while allowing the scattered light to resonate within the optical cavity. At least portions of the scattered light are interfered outside of the optical cavity to produce a beat note for a measurement of the optical sensor. The disclosed method is particularly applicable to optical gyroscopes.
摘要翻译： 用于增强具有光腔的光学传感器的灵敏度的方法使光腔内的泵浦光束反向传播，以产生基于受激布里渊散射（SBS）的散射光。 选择泵浦光的特性以产生散射光的快光条件，使得散射光包括反向传播的快光束。 该方法防止泵浦光在光腔内谐振，同时允许散射光在光腔内谐振。 散射光的至少一部分被干涉到光腔外部，以产生用于测量光学传感器的节拍。 所公开的方法特别适用于光学陀螺仪。
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3.发明申请公开(公告)号：US20150270679A1
公开(公告)日：2015-09-24
申请号：US14221718
申请日：2014-03-21
CPC分类号： H01S3/09702 , G01C19/661 , H01S3/034 , H01S3/038
摘要： Systems and methods for fabricating capacitive discharge electrodes for a ring laser gyroscope are disclosed. In one example, a laser block for generating a laser in a closed loop path comprises a laser block, wherein an optically closed loop path is formed within the laser block. Additionally, at least two electrodes are formed on the laser block, wherein the at least two electrodes are used in conjunction with a radio frequency power supply to create an electric potential in the laser block which generates at least one laser beam in the closed loop path. The at least two electrodes are manufactured by placing a paste composition on the laser block and securing the paste composition to the laser block. The paste composition also includes a conductive material.
摘要翻译： 公开了一种用于制造用于环形激光陀螺仪的电容放电电极的系统和方法。 在一个示例中，用于在闭环路径中产生激光的激光器块包括激光器块，其中在激光器块内形成光闭环路径。 另外，在激光器块上形成至少两个电极，其中至少两个电极与射频电源结合使用，以在激光器块中产生电位，在闭环路径中产生至少一个激光束 。 通过将糊剂组合物放置在激光器块上并将糊剂组合物固定到激光块来制造至少两个电极。 糊料组合物还包括导电材料。
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4.发明授权Circuits for determining differential and average temperatures from resistive temperature devices 有权用于确定电阻温度器件的差分和平均温度的电路公开(公告)号：US09091598B2
公开(公告)日：2015-07-28
申请号：US13250319
申请日：2011-09-30
CPC分类号： G01K3/06 , G01C19/661 , G01K3/14 , G01K7/24
摘要： Systems for determining differential and average temperatures from resistive temperature devices are provided. In one embodiment, a device comprises a bridge network including a first node and second node, wherein the first node receives a constant current from a current source; a first branch coupled between a first node and a second node, the first branch including a first temperature sensing element of a first resistive temperature device; a second branch coupled in parallel with the first branch between the first node and the second node, the second branch including a second temperature sensing element of a second resistive temperature device; a first output that provides a signal representing a difference between a voltage developed across the first temperature sensing element and a voltage developed across the second temperature sensing element; and a second output that provides a signal representing a voltage developed across first node and the second node.
摘要翻译： 提供了用于确定电阻温度器件的差分和平均温度的系统。 在一个实施例中，设备包括包括第一节点和第二节点的桥接网络，其中所述第一节点从当前源接收恒定电流; 耦合在第一节点和第二节点之间的第一分支，所述第一分支包括第一电阻温度装置的第一温度感测元件; 与所述第一节点和所述第二节点之间的第一分支并联耦合的第二分支，所述第二分支包括第二电阻温度装置的第二温度感测元件; 第一输出，其提供表示在所述第一温度感测元件上产生的电压与跨所述第二温度感测元件产生的电压之间的差的信号; 以及提供表示在第一节点和第二节点上产生的电压的信号的第二输出。
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5.发明申请SYSTEM AND METHOD FOR REDUCING GAS FLOW BIAS IN AN RF-EXCITED RING LASER GYRO 审中-公开用于减少RF射频激光陀螺中的气体流量的系统和方法公开(公告)号：US20150204669A1
公开(公告)日：2015-07-23
申请号：US13962224
申请日：2013-08-08
IPC分类号： G01C19/66 , H01S3/083 , H01S3/0975
CPC分类号： G01C19/665 , G01C19/661 , H01S3/0835 , H01S3/0975 , Y10T29/49016
摘要： A ring laser gyroscope comprising: a ring laser gyroscope block comprising an optical cavity filled with a gain medium, the optical cavity having at least three legs that form an optical path; a radio frequency coupler positioned along the optical path, wherein the radio frequency coupler is configured to transmit radio frequency energy which causes two counter-propagating laser beams to form from the gain medium, the laser beams propagating around the optical cavity through the optical path formed by the at least three legs of the optical cavity; a gas flow bypass configured to connect at least one of the at least three legs to at least one other leg of the at least three legs.
摘要翻译： 一种环形激光陀螺仪，包括：环形激光陀螺仪块，包括填充有增益介质的光学腔，所述光学腔具有形成光路的至少三条腿; 射频耦合器，沿着光路定位，其中射频耦合器被配置为发射射频能量，其使得从增益介质形成两个反向传播的激光束，激光束通过形成的光路在光腔周围传播 通过光腔的至少三个腿; 气流旁路，其被配置为将至少三个腿中的至少一个腿连接到所述至少三个腿中的至少一个其他腿。
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公开(公告)号：US20140340687A1
公开(公告)日：2014-11-20
申请号：US14254739
申请日：2014-04-16
申请人： THALES
IPC分类号： G01C19/66
CPC分类号： G01C19/661 , H01S3/0381 , H01S3/0384 , H01S3/0835
摘要： A gyrolaser comprises: a ring-shaped optical cavity and a gaseous medium, and at least three electrodes in contact with the gas of the amplification medium, the electrodes generating charges when ignition voltage is applied; the cavity and distribution of the electrodes comprising at least one plane of symmetry perpendicular to the plane of the cavity and passing through the electrode of first type; at least one conductive ignition element set at a predetermined potential, the shape and arrangement being such that symmetry is maintained; the electrically conductive element generating an electric field locally for guiding the charges so they are distributed symmetrically in a first flow and second flow in the first and second discharge areas respectively when the ignition voltage is applied, in such a way that a first plasma and a second plasma are initiated simultaneously, respectively, in the first discharge area and in the second discharge area.
摘要翻译： 陀螺仪包括：环形光腔和气体介质，以及与放大介质的气体接触的至少三个电极，所述电极在施加点火电压时产生电荷; 所述电极的空腔和分布包括垂直于所述腔的平面并穿过所述第一类型的电极的至少一个对称平面; 设置在预定电位的至少一个导电点火元件，所述形状和布置保持对称; 所述导电元件局部地产生用于引导电荷的电场，使得它们在施加点火电压时分别在第一和第二放电区域中的第一流量和第二流量中对称地分布，使得第一等离子体和 分别在第一放电区域和第二放电区域中同时启动第二等离子体。
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公开(公告)号：US08885169B2
公开(公告)日：2014-11-11
申请号：US13323666
申请日：2011-12-12
申请人： André Boura
发明人： André Boura
CPC分类号： G01C19/661
摘要： In a laser gyroscope, an activation wheel has a polygonal cylindrical hub formed by continuous assembly of vertical walls, wherein two adjacent walls of the cylindrical hub between them form a dihedron. Each radial plate of the activation wheel is connected to the cylindrical hub along the edge of a dihedron. The walls are formed with bulging portions, serving for plane-to-plane fixing of one face of the tulip to an optical block, and thin parts allowing a radial displacement degree of freedom of the fixing parts relative to the rim when there is a differential thermal expansion between the tulip and activation wheel. The activation wheel may be produced in a material having a thermal expansion coefficient higher than the tulip, for example steel, with plane-to-plane fixing of the tulip to the activation wheel hub, advantageously by screws, the assembly effectively accommodating the thermal expansion differential between the two materials.
摘要翻译： 在激光陀螺仪中，激活轮具有通过连续组装垂直壁形成的多边形圆柱形轮毂，其中圆柱形轮毂之间的两个相邻的壁形成二面体。 活化轮的每个径向板沿着二面体的边缘连接到圆柱形毂。 壁形成有凸起部分，用于将郁金香的一个面的面对面固定到光学块，以及当存在差速器时允许固定部分相对于轮辋的径向位移自由度的薄部分 郁金香和活化轮之间的热膨胀。 活化轮可以通过具有高于郁金香（例如钢）的热膨胀系数的材料生产，有利地通过螺丝将郁金香平面对面地固定到活化轮毂，该组件有效地容纳热膨胀 两种材料之间的差异。
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8.发明申请FRAME ELEMENT OF A LASER GYROSCOPE COMPRISING A SUBSTRATE COMPRISING MOBILE IONS AND AN ELECTRODE 有权包含移动电极和电极的基板的激光晶体的框架元件公开(公告)号：US20130141732A1
公开(公告)日：2013-06-06
申请号：US13688733
申请日：2012-11-29
申请人： Thales
CPC分类号： H05K1/0296 , G01C19/661
摘要： The invention pertains to a frame element of a laser gyroscope comprising a substrate comprising mobile ions and an electrode fixed to the said substrate, comprising at least one electrically conducting element, connected electrically to the said electrode, and furnished with at least one distal part integrated into the said substrate and exhibiting at least one tip and/or at least one groove, forming at least one blind hole and/or at least one groove in the said substrate, of shape corresponding to that of the said distal part or parts, so as to obtain a tip effect.
摘要翻译： 本发明涉及激光陀螺仪的框架元件，其包括包括移动离子的基底和固定到所述基底的电极，该基底包括至少一个与所述电极电连接的导电元件，并配有至少一个远端部分， 形成至少一个尖端和/或至少一个凹槽，形成至少一个盲孔和/或所述基底中的至少一个凹槽，其形状对应于所述远端部件的形状，因此， 以获得提示效果。
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9.发明申请CIRCUITS FOR DETERMING DIFFERENTIAL AND AVERAGE TEMPERATURES FROM RESISTIVE TEMPERATURE DEVICES 有权用于确定电阻温度装置的差分和平均温度的电路公开(公告)号：US20130085709A1
公开(公告)日：2013-04-04
申请号：US13250319
申请日：2011-09-30
CPC分类号： G01K3/06 , G01C19/661 , G01K3/14 , G01K7/24
摘要： Systems for determining differential and average temperatures from resistive temperature devices are provided. In one embodiment, a device comprises a bridge network including a first node and second node, wherein the first node receives a constant current from a current source; a first branch coupled between a first node and a second node, the first branch including a first temperature sensing element of a first resistive temperature device; a second branch coupled in parallel with the first branch between the first node and the second node, the second branch including a second temperature sensing element of a second resistive temperature device; a first output that provides a signal representing a difference between a voltage developed across the first temperature sensing element and a voltage developed across the second temperature sensing element; and a second output that provides a signal representing a voltage developed across first node and the second node.
摘要翻译： 提供了用于确定电阻温度器件的差分和平均温度的系统。 在一个实施例中，设备包括包括第一节点和第二节点的桥接网络，其中所述第一节点从当前源接收恒定电流; 耦合在第一节点和第二节点之间的第一分支，所述第一分支包括第一电阻温度装置的第一温度感测元件; 与所述第一节点和所述第二节点之间的第一分支并联耦合的第二分支，所述第二分支包括第二电阻温度装置的第二温度感测元件; 第一输出，其提供表示在所述第一温度感测元件上产生的电压与跨所述第二温度感测元件产生的电压之间的差的信号; 以及提供表示在第一节点和第二节点上产生的电压的信号的第二输出。
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公开(公告)号：US20130083327A1
公开(公告)日：2013-04-04
申请号：US13630792
申请日：2012-09-28
发明人： Diaa A.M. Khalil , Khaled Hassan Mohamed Ahmed , Ahmed Saeed Shebl Salem , Mrwan Alayed , Fahad Aljekhedab
IPC分类号： G01C19/66
CPC分类号： G01C19/70 , G01C19/661
摘要： A ring laser gyroscope (RLG) includes moveable minors and a Micro-Electro-Mechanical Systems (MEMS) actuator coupled to the moveable minors to cause a respective displacement thereof that induces a phase modulation on counter-propagating light beams relative to one another. The induced phase modulation creates an optical path difference between the counter-propagating light beams corresponding to a virtual rotation that reduces the lock-in of the RLG.
摘要翻译： 环形激光陀螺仪（RLG）包括可移动的未成年人和耦合到可移动未成年人的微机电系统（MEMS）致动器，以引起其相对于彼此在反向传播的光束上引起相位调制的相应位移。 感应相位调制在对应于减少RLG锁定的虚拟旋转的反向传播光束之间产生光程差。
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