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11. 发明申请

US20090067775A1 FIBER OPTIC CHEMICAL SENSOR 失效
标题翻译：光纤化学传感器
公开(公告)号：US20090067775A1
公开(公告)日：2009-03-12
申请号：US11757904
申请日：2007-06-04
申请人： Glen A. Sanders
发明人： Glen A. Sanders
IPC分类号： G02B6/00
CPC分类号： G01N21/7746 , G01N2021/7716 , G01N2021/7776 , G02B6/02009 , G02B6/02304 , G02B6/02333 , G02B6/024 , G02B6/4228
摘要： Optical systems for sensing chemicals. An example system includes a light source, a light sensor, a processing device in signal communication with the light source and the light sensor, and a fiber optic cable that receives light from the light source and delivers light to the light sensor. The fiber optic cable includes a cladding material that is permeable to a predefined substance and an optical fiber core surrounded by the cladding material. The optical fiber core is a single mode optical fiber having a diameter greater than 30 μm. The optical fiber core includes a hollow center having a diameter between 1-50 μm. The optical fiber core includes a plurality of lengthwise holes positioned to provide single mode light propagation properties. The plurality of lengthwise holes have a diameter between 0.2-4 μm.
摘要翻译：用于感应化学品的光学系统。示例性系统包括光源，光传感器，与光源和光传感器信号通信的处理设备，以及光纤电缆，其从光源接收光并将光传送到光传感器。光纤电缆包括对预定物质是可渗透的包层材料以及由包层材料包围的光纤芯。光纤芯是直径大于30μm的单模光纤。光纤芯包括直径在1-50μm之间的中空中心。光纤芯包括多个纵向孔，其定位成提供单模光传播特性。多个纵向孔的直径在0.2-4μm之间。

12. 发明申请

US20080159684A1 Fiber optic current sensor and method for sensing current using the same 失效
标题翻译：光纤电流传感器及其使用方法
公开(公告)号：US20080159684A1
公开(公告)日：2008-07-03
申请号：US11647654
申请日：2006-12-29
申请人： Glen A. Sanders , Steve J. Sanders
发明人： Glen A. Sanders , Steve J. Sanders
IPC分类号： G01R33/032
CPC分类号： G01R15/246
摘要： An apparatus for sensing current and a method for sensing current are provided. The apparatus includes an optical fiber having first and second opposing ends and a hollow passageway therethrough, a recirculator configured such that when light propagates from the respective first and second ends of the optical fiber, at least some of the light is reflected by the recirculator into the respective opposing ends of the optical fiber to propagate through the optical fiber and form an optical loop having an opening therethrough, and a Faraday sensitive material positioned in the optical loop such that the light passes therethrough, an index of refraction of the Faraday sensitive material changes when a current flows through the opening of the optical loop.
摘要翻译：提供一种用于感测电流的装置和用于感测电流的方法。该设备包括具有第一和第二相对端和穿过其中的中空通道的光纤，再循环器构造成使得当光从光纤的相应的第一和第二端传播时，至少一些光被再循环器反射成光纤的相对端部通过光纤传播并形成具有开口的光学环路，以及位于光学环路中的法拉第敏感材料，使得光通过其中，法拉第敏感材料的折射率当电流流过光环路的开口时发生变化。

13. 发明授权

US07336859B2 Sensor using ultra thin waveguides and optical fibers 失效
标题翻译：传感器采用超薄波导和光纤
公开(公告)号：US07336859B2
公开(公告)日：2008-02-26
申请号：US11321158
申请日：2005-12-28
申请人： Glen A. Sanders
发明人： Glen A. Sanders
IPC分类号： G02B6/00 , G02B6/02
CPC分类号： G01N21/552 , G01N21/7703 , G01N21/7746 , G01N21/94 , G01N2021/7783 , G01N2201/0873 , G01N2201/088 , G02B6/107
摘要： Methods and apparatus are provided for detecting one or more contaminant particles in an environment with an optical sensor. The sensor includes at least one optical waveguide in a resonant arrangement and a light source positioned in an environment in which the presence of a contaminant particle is sought to be determined. The at least one optical waveguide is of a diameter that an evanescent tail of the lightwave extending there through extends into the environment and is reactive to at least one contaminant particle in the surrounding environment. A detector is positioned to receive light indicative of the sharpness of the optical resonance lineshape of the optical resonator at a pre-selected optical wavelength. The detected information determines the specific contaminant particle in the environment and the concentration of the contaminant particle in the environment.
摘要翻译：提供了用于利用光学传感器检测环境中的一种或多种污染物颗粒的方法和装置。传感器包括至少一个谐振装置中的光波导和位于其中寻求确定污染物颗粒的存在的环境中的光源。至少一个光波导具有直径延伸到其中的光波的渐逝尾部延伸到环境中并且对周围环境中的至少一种污染物质具有反应性的直径。检测器被定位成以预选的光波长接收指示光学谐振器的光学谐振线形状的清晰度的光。检测到的信息确定环境中的特定污染物颗粒和环境中污染物颗粒的浓度。

14. 发明授权

US07327460B2 Transmission mode RFOG and method for detecting rotation with RFOG 有权
标题翻译：传输模式RFOG和用于通过RFOG检测旋转的方法
公开(公告)号：US07327460B2
公开(公告)日：2008-02-05
申请号：US11266628
申请日：2005-11-02
申请人： Glen A. Sanders , Lee K. Strandjord
发明人： Glen A. Sanders , Lee K. Strandjord
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： Methods and apparatus are provided for sensing a rotation rate of a ring resonator in a transmission mode. A ring resonator for circulating light beams in counter-propagating directions comprises an optical fiber coil having a hollow core and first and second ends. A first optical element is configured to receive an input light beam and direct a portion of the input light beam in a counter-propagating direction of the ring resonator. A second optical element is configured to direct with the first optical element a majority of a circulating light beam in the counter-propagating direction of the ring resonator and derive a transmission mode component of the circulating light beam at one of the ends. The portion of the input light beam enters one of the first and second ends. The circulating light beam is based on the input light beam. The transmission mode component indicates a resonance peak of the counter-propagating direction of the ring resonator.
摘要翻译：提供了用于在传输模式下感测环形谐振器的旋转速率的方法和装置。用于沿反向传播方向循环光束的环形谐振器包括具有中空芯的光纤线圈和第一和第二端。第一光学元件被配置为接收输入光束并且在环形谐振器的相反传播方向上引导输入光束的一部分。第二光学元件被配置为使第一光学元件与环形谐振器的反向传播方向上的大部分循环光束一起引导，并且在一个端部导出循环光束的透射模式分量。输入光束的部分进入第一和第二端之一。循环光束基于输入光束。传输模式分量表示环形谐振器的相反传播方向的谐振峰值。

15. 发明授权

US06320664B1 Ruggedized structure for fiber optic gyroscope 有权
标题翻译：光纤陀螺的坚固结构
公开(公告)号：US06320664B1
公开(公告)日：2001-11-20
申请号：US09224612
申请日：1998-12-31
申请人： Andrew W. Kaliszek , Glen A. Sanders , Clarence E. Laskoskie
发明人： Andrew W. Kaliszek , Glen A. Sanders , Clarence E. Laskoskie
IPC分类号： G01C1972
CPC分类号： G01C19/722
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，其用于控制系统以消除振动频率处的光强度变化。

16. 发明授权

US5237387A Dual serrodyne resonator fiber optic gyroscope 失效
标题翻译：双光纤陀螺谐振器光纤陀螺仪
公开(公告)号：US5237387A
公开(公告)日：1993-08-17
申请号：US709810
申请日：1991-05-31
申请人： Glen A. Sanders
发明人： Glen A. Sanders
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： A dual serrodyne resonator fiber optic gyroscope utilizing two positive-going or two negative-going ramp signals having a frequency difference, to track resonance frequencies of laser light traveling in two directions in a fiber optic resonator. The difference in the servo-controlled variable ramp frequencies is proportional to rotation rate and is indicative of direction of rotation.
摘要翻译：利用具有频率差的两个正向或两个负向斜坡信号的双脉冲谐振器光纤陀螺仪来跟踪在光纤谐振器中在两个方向上行进的激光的谐振频率。伺服控制的可变斜坡频率的差异与旋转速率成正比，并表示旋转方向。

17. 发明授权

US4673293A Passive cavity gyro bias eliminator 失效
标题翻译：无源腔陀螺偏置消除器
公开(公告)号：US4673293A
公开(公告)日：1987-06-16
申请号：US696816
申请日：1985-01-31
申请人： Glen A. Sanders
发明人： Glen A. Sanders
IPC分类号： H01S3/083 , G01C19/64 , G01C19/72 , G01P9/00 , G01C19/34
CPC分类号： G01C19/727
摘要： Disclosed is a passive ring resonator and a control scheme for correcting bias effects due to intensity variations of waves propagating within the resonator.
摘要翻译：公开了一种无源环形谐振器和用于校正由于在谐振器内传播的波的强度变化引起的偏置效应的控制方案。

18. 发明授权

US08923352B2 Laser with transmission and reflection mode feedback control 有权
标题翻译：激光带传输和反射模式反馈控制
公开(公告)号：US08923352B2
公开(公告)日：2014-12-30
申请号：US13571887
申请日：2012-08-10
申请人： Lee K. Strandjord , Tiequn Qiu , Glen A. Sanders
发明人： Lee K. Strandjord , Tiequn Qiu , Glen A. Sanders
IPC分类号： H01S3/13
CPC分类号： H01S3/1305 , G01C19/727 , H01S3/005 , H01S3/0085 , H01S3/10092 , H01S3/1303 , H01S3/1304 , H01S3/1307 , H01S3/2383 , H01S2301/02
摘要： One embodiment is directed towards a stabilized laser including a laser to produce light at a frequency and a resonator coupled to the laser such that the light from the laser circulates therethrough. The laser also includes Pound-Drever-Hall (PDH) feedback electronics configured to adjust the frequency of the light from the laser to reduce phase noise in response to light sensed at the reflection port of the resonator and transmission port feedback electronics configured to adjust the frequency of the light from the laser toward resonance of the resonator at the transmission port in response to the light sensed at the transmission port of the resonator, wherein the transmission port feedback electronics adjust the frequency at a rate at least ten times slower than the PDH feedback electronics.
摘要翻译：一个实施例涉及包括激光器的稳定激光器，以产生频率耦合的激光器和耦合到激光器的谐振器，使得来自激光器的光线通过其中循环。激光器还包括Pound-Drever-Hall（PDH）反馈电子器件，其被配置为调节来自激光器的光的频率，以响应于在谐振器的反射端口处感测到的光而减少相位噪声，并且配置为调整响应于在谐振器的传输端口处感测到的光，从激光器到发射端口的谐振器的谐振的频率，其中传输端口反馈电子器件以比PDH慢至少十倍的速率调节频率反馈电子。

19. 发明授权

US08446590B2 Optical filtering for resonator-fiber-optic gyroscopes 有权
标题翻译：谐振器光纤陀螺仪的光学滤波
公开(公告)号：US08446590B2
公开(公告)日：2013-05-21
申请号：US13150990
申请日：2011-06-01
申请人： Glen A. Sanders , John Feth , Lee K. Strandjord , Tiequn Qiu
发明人： Glen A. Sanders , John Feth , Lee K. Strandjord , Tiequn Qiu
IPC分类号： G01C19/72
CPC分类号： G01C19/727 , G02B6/29359
摘要： An optical-fiber filter is provided. The optical-fiber filter includes an optical fiber having a first end-face and an opposing second end-face. The first end-face and the second end-face set a fiber length. The first end-face and the second end-face are coated with reflective coatings. When an optical beam emitted from a laser is coupled into one of the first end-face or the second end-face, an optical beam output from the opposing end-face has a narrow linewidth and low frequency noise fluctuations.
摘要翻译：提供光纤滤波器。光纤滤波器包括具有第一端面和相对的第二端面的光纤。第一端面和第二端面设置光纤长度。第一端面和第二端面涂有反射涂层。当从激光器发射的光束被耦合到第一端面或第二端面中的一个时，从相对端面输出的光束具有窄线宽和低频噪声波动。

20. 发明申请

US20120307253A1 OPTICAL FILTERING FOR RESONATOR-FIBER-OPTIC GYROSCOPES 有权
标题翻译：谐振光纤光栅的光学滤波
公开(公告)号：US20120307253A1
公开(公告)日：2012-12-06
申请号：US13150990
申请日：2011-06-01
申请人： Glen A. Sanders , John Feth , Lee K. Strandjord , Tiequn Qiu
发明人： Glen A. Sanders , John Feth , Lee K. Strandjord , Tiequn Qiu
IPC分类号： G01C19/72 , G02B6/26
CPC分类号： G01C19/727 , G02B6/29359
摘要： An optical-fiber filter is provided. The optical-fiber filter includes an optical fiber having a first end-face and an opposing second end-face. The first end-face and the second end-face set a fiber length. The first end-face and the second end-face are coated with reflective coatings. When an optical beam emitted from a laser is coupled into one of the first end-face or the second end-face, an optical beam output from the opposing end-face has a narrow linewidth and low frequency noise fluctuations.
摘要翻译：提供光纤滤波器。光纤滤波器包括具有第一端面和相对的第二端面的光纤。第一端面和第二端面设置光纤长度。第一端面和第二端面涂有反射涂层。当从激光器发射的光束被耦合到第一端面或第二端面中的一个时，从相对端面输出的光束具有窄线宽和低频噪声波动。

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