公开(公告)号：US07486401B2

公开(公告)日：2009-02-03

申请号：US11364025

申请日：2006-02-27

申请人： Glen A. Sanders

发明人： Glen A. Sanders

IPC分类号： G01C19/64

CPC分类号： G01C19/64

摘要： An apparatus for detecting rotation and a method for constructing the apparatus are provided. The apparatus comprises an optical fiber having a hollow passageway therethrough, a laser medium within the hollow passageway and interconnecting the first and second portions of the hollow passageway, and first and second electrodes contacting the laser medium such that when a voltage is applied across the first and second electrodes, the laser medium is excited such that the laser medium emits laser light through the hollow passageway.

摘要翻译： 提供了一种用于检测旋转的装置和一种用于构造该装置的方法。 该设备包括具有中空通道的光纤，在中空通道内的激光介质，并且连接中空通道的第一和第二部分，以及接触激光介质的第一和第二电极，使得当电压跨越第一 和第二电极，激光介质被激发，使得激光介质通过中空通道发射激光。

公开(公告)号：US20090027675A1

公开(公告)日：2009-01-29

申请号：US11829005

申请日：2007-07-26

申请人： Russell Johnson ,  Glen A. Sanders

发明人： Russell Johnson ,  Glen A. Sanders

IPC分类号： G01N21/00

CPC分类号： G01N21/7703 ,  G01N1/405 ,  G01N2001/022

摘要： Methods and systems for detecting materials both energetic and non-energetic. An example system passes a sample of fluid through a filter/concentrator (particulate/molecular). Then desorption of the material in the filter/concentrator occurs at a predefined temperature. The desorbed material is analyzed at an optical resonator system to detect presence of a predefined material.

摘要翻译： 检测材料的方法和系统是能量和非活力的。 示例性系统将流体样品通过过滤器/浓缩器（颗粒/分子）。 然后，过滤器/浓缩器中的材料的解吸附在预定温度下。 在光学谐振器系统中分析解吸材料以检测预定材料的存在。

公开(公告)号：US06301400B1

公开(公告)日：2001-10-09

申请号：US09190873

申请日：1998-11-12

申请人： Glen A. Sanders

发明人： Glen A. Sanders

IPC分类号： G02B600

CPC分类号： G01R15/246 ,  G01R15/247

摘要： An interferometric sensor having an optic fiber which forms a sensing loop optical path and a second loop that is wound in the opposite direction of the sensor loop. Circularly polarized light propagates along the optical path of the sensing loop. A differential phase shift is induced in the light waves by a magnetic field of the current in a conductor. The light waves with their phase relationship are detected by a photo detector which outputs an electrical signal that is processed by loop closure electronics into a signal indicative of the current's magnitude and direction. If the phase shift due to rotation is sensed in the sensing loop, then that phase shift is canceled by an opposite phase shift from the compensating loop. The compensating loop or coil may be reversed in connections, or flipped over, for calibrating the current sensor. Also, with a small sensor coil, delay line compensating coils may be used in the optical circuit, so that the bias modulation frequency can be made low enough for low drift loop closure electronics.

摘要翻译： 一种干涉测量传感器，其具有形成感测回路光路的光纤和沿传感器回路的相反方向缠绕的第二回路。 圆偏振光沿传感环路的光路传播。 通过导体中的电流的磁场在光波中感应出差分相移。 具有相位关系的光波由光检测器检测，光电检测器将由闭环电路处理的电信号输出到指示电流的大小和方向的信号。 如果在感测回路中感测到由旋转产生的相移，那么该相移将被来自补偿回路的相反的相移所抵消。 补偿回路或线圈可以在连接中反转或翻转，用于校准电流传感器。 另外，利用小的传感器线圈，可以在光电路中使用延迟线补偿线圈，使得偏置调制频率可以被制成足够低以用于低漂移闭环电路。

公开(公告)号：US5923424A

公开(公告)日：1999-07-13

申请号：US879902

申请日：1997-06-19

申请人： Glen A. Sanders ,  Rudolf C. Dankwort ,  Andrew W. Kaliszek ,  Clarence E. Laskoskie ,  Lee K. Strandjord ,  Daniel L. Sugarbaker ,  Jerry L. Page

发明人： Glen A. Sanders ,  Rudolf C. Dankwort ,  Andrew W. Kaliszek ,  Clarence E. Laskoskie ,  Lee K. Strandjord ,  Daniel L. Sugarbaker ,  Jerry L. Page

IPC分类号： G01C19/72

CPC分类号： G01C19/728 ,  G01C19/721

摘要： A rectification error reducer for a fiber optic gyroscope, which is an intensity servo or compensator for reducing vibration effects in the optical signals caused by modulation at vibration frequencies induced by the gyroscope operating environment. The vibration effects may be detected in signals from the photodiode output in amplitude form which is used in a control system to null out optical intensity variations at the frequencies of vibration.

摘要翻译： 一种用于光纤陀螺仪的整流误差减小器，其是用于减少由由陀螺仪操作环境引起的振动频率下的调制引起的光信号中的振动效应的强度伺服或补偿器。 可以在振幅形式的光电二极管输出的信号中检测振动效应，该控制系统用于消除振动频率处的光强度变化。

公开(公告)号：US5563705A

公开(公告)日：1996-10-08

申请号：US476921

申请日：1995-06-07

申请人： Glen A. Sanders

发明人： Glen A. Sanders

IPC分类号： G01C19/72 ,  G01C19/64

CPC分类号： G01C19/721

摘要： An interferometric fiber optic gyroscope having a wavelength-sensitive splitter which has a splitting ratio that changes according to light wavelength. A feedback circuit indicates any difference that there might be in the intensities of counterpropagating beams in the sensing loop of the gyroscope, and provides a signal to the light source to change the light wavelength in a direction to cause the splitter ratio to change so as to equalize the beams' intensities for eliminating the Kerr effect.

摘要翻译： 具有波长敏感分离器的干涉光纤陀螺仪具有根据光波长而变化的分束比。 反馈电路表示在陀螺仪的感测环路中的反向传播光束的强度可能存在的差异，并且向光源提供信号以在一个方向上改变光波长以使分束器比率发生变化，从而 均衡梁的强度以消除克尔效应。

公开(公告)号：US5465149A

公开(公告)日：1995-11-07

申请号：US209510

申请日：1994-03-10

申请人： Lee J. Strandjord ,  Glen A. Sanders

发明人： Lee J. Strandjord ,  Glen A. Sanders

IPC分类号： G01C19/72

CPC分类号： G01C19/727

摘要： An error reducer for reducing rotation rate errors arising because of an optical Kerr effect occurring in a coiled optical fiber in a rotation sensor. Through amplitude modulating electromagnetic waves propagating in that coil. A signal obtained from the coil based on the amplitude modulation component therein is used in a feedback loop to reduce or eliminate such errors.

摘要翻译： 一种用于减少由于在旋转传感器中卷绕的光纤中发生的光克尔效应而产生的旋转速率误差的误差减小器。 通过振幅调制在该线圈中传播的电磁波。 基于其中的幅度调制分量从线圈获得的信号用于反馈回路中以减少或消除这种误差。

公开(公告)号：US5349441A

公开(公告)日：1994-09-20

申请号：US740741

申请日：1991-08-06

申请人： Glen A. Sanders

发明人： Glen A. Sanders

IPC分类号： G01C19/72 ,  G01B9/02

CPC分类号： G01C19/727

摘要： An error compensator for a resonator fiber optic gyroscope extracting characteristics from the output signal of a photodetector, receiving electromagnetic waves from the resonator, and combining them to result in a determination of substantially the rotation rate error that is due to the effect of a nonlinear refractive index occurring in the resonator. This determination can be used to compensate the system output signal to eliminate rotation rate errors of such a nature therefrom.

摘要翻译： 用于谐振器光纤陀螺仪的误差补偿器，从光电检测器的输出信号中提取特性，接收来自谐振器的电磁波，并将它们组合起来，从而确定基于非线性折射效应的旋转速率误差 在谐振器中发生指数。 该确定可以用于补偿系统输出信号以消除这种性质的旋转误差。

公开(公告)号：US5018857A

公开(公告)日：1991-05-28

申请号：US244983

申请日：1988-09-15

申请人： Glen A. Sanders ,  Robert B. Smith ,  Gordon F. Rouse

发明人： Glen A. Sanders ,  Robert B. Smith ,  Gordon F. Rouse

IPC分类号： G01C19/72

CPC分类号： G01C19/727 ,  G02F2001/211 ,  G02F2203/15

摘要： A passive ring resonator gyro is constructed of an electromagnetic waveguide ring path which causes a specified rotation of the polarization of the waves, once for each round trip through the ring path. For an optical fiber ring path, a splice at some point is introduced in the ring path in which the fiber ends are rotated relative to each other in order to effect polarization rotation.

摘要翻译： 无源环形谐振器陀螺仪由电磁波导环路径构成，其导致波的极化的指定旋转，一次是通过环路的每次往返行程。 对于光纤环路，在环路中引入某一点处的接头，其中光纤端部相对于彼此旋转以实现偏振旋转。

公开(公告)号：US08736845B2

公开(公告)日：2014-05-27

申请号：US13457929

申请日：2012-04-27

申请人： Jianfeng Wu ,  Jennifer S. Strabley ,  Tiequn Qiu ,  Glen A. Sanders

发明人： Jianfeng Wu ,  Jennifer S. Strabley ,  Tiequn Qiu ,  Glen A. Sanders

IPC分类号： G01C19/72 ,  G01B11/16

CPC分类号： H01S5/06258 ,  G03F7/70525 ,  H01S5/0687

摘要： A laser stabilization system includes laser source having first and second ends; first waveguide portion having first and second ends, first end of first waveguide portion coupled to first end of laser source; second waveguide portion having first and second ends, first end of second waveguide portion coupled to second end of laser source; micro-cavity coupled between second end of first waveguide portion and second end of second waveguide portion, micro-cavity having resonant frequency; and electronic locking loop coupled between micro-cavity and laser source, wherein electronic locking loop electronically locks laser source to resonant frequency of micro-cavity; wherein first waveguide portion is optical locking loop coupled between micro-cavity and laser source, wherein optical locking loop optically locks laser source to resonant frequency of micro-cavity; micro-cavity stabilization loop coupled with micro-cavity, wherein micro-cavity stabilization loop stabilizes resonant frequency of micro-cavity to reference frequency; and output for outputting light from system.

摘要翻译： 激光稳定系统包括具有第一和第二端的激光源; 第一波导部分具有第一和第二端，第一波导部分的第一端耦合到激光源的第一端; 第二波导部分具有第一和第二端，第二波导部分的第一端耦合到激光源的第二端; 耦合在第一波导部分的第二端和第二波导部分的第二端之间的微腔，具有谐振频率的微腔; 和耦合在微腔和激光源之间的电子锁定环，其中电子锁定环将激光源电子地锁定到微腔的共振频率; 其中第一波导部分是耦合在微腔和激光源之间的光学锁定环，其中光学锁定环将激光源光学锁定到微腔的共振频率; 微腔稳定环与微腔耦合，其中微腔稳定环路将微腔​​的谐振频率稳定到参考频率; 并输出用于从系统输出光。

公开(公告)号：US08659760B2

公开(公告)日：2014-02-25

申请号：US13445319

申请日：2012-04-12

申请人： Glen A. Sanders ,  Lee K. Strandjord ,  Tiequn Qiu

发明人： Glen A. Sanders ,  Lee K. Strandjord ,  Tiequn Qiu

IPC分类号： G01C19/72

CPC分类号： G01C19/727 ,  G01C19/726 ,  G02B6/2934 ,  G02B6/29379

摘要： A resonator fiber optic gyroscope comprises a first light source having a first frequency comb spectrum, and a second light source having a second frequency comb spectrum. A first filter is in optical communication with the first light source and configured to pass a first frequency comb portion. A second filter is in optical communication with the second light source and configured to pass a second frequency comb portion. A resonator is in optical communication with the first and second filters. The free spectral range values of the first and second frequency comb portions are adjusted to be an odd integer multiple of the free spectral range value of the resonances of the resonator. The second frequency comb portion is spectrally separated apart from the first frequency comb portion by a multiple of the free spectral range value of the resonances plus a frequency value proportional to rotation rate.

摘要翻译： 谐振器光纤陀螺仪包括具有第一频率梳状谱的第一光源和具有第二频率梳状谱的第二光源。 第一滤光器与第一光源光通信并被配置为通过第一频率梳部分。 第二滤光器与第二光源光通信并被配置为通过第二频率梳部分。 谐振器与第一和第二滤波器光学通信。 第一和第二频率梳状部分的自由光谱范围值被调整为谐振器的谐振的自由光谱范围值的奇数整数倍。 第二频率梳部分与第一频率梳部分分开，共振的自由谱范围值的倍数加上与转速成比例的频率值。