专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20120057167A1 RFOG WITH OPTICAL HETERODYNING FOR OPTICAL SIGNAL DISCRIMINATION 有权
标题翻译： RFOG具有光学信号辨别的光学异质性
公开(公告)号：US20120057167A1
公开(公告)日：2012-03-08
申请号：US12876796
申请日：2010-09-07
申请人： Lee K. Strandjord , Glen A. Sanders , Tiequn Qiu
发明人： Lee K. Strandjord , Glen A. Sanders , Tiequn Qiu
IPC分类号： G01C19/72
CPC分类号： G01C19/727 , G01C19/723
摘要： A RFOG comprises a reference laser configured to produce a reference laser beam; a first laser source configured to produce a first laser beam; a second laser source configured to produce a second laser beam; a sensing resonator coupled to the first and second laser sources such that the first and second laser beams propagate through the sensing resonator in first and second directions, respectively; resonance tracking electronics configured to generate first and second control signals that indicate when the first and second laser beams, respectively, are off resonance; first and second optical combiners configured to beat the first and second outputs of the sensing resonator with the reference laser beam creating first and second beat signals, respectively; wherein the resonance tracking electronics is configured to discriminate between at least one rotation-sensing error and the first and second outputs of the resonator based on the first and second beat signals.
摘要翻译： RFOG包括被配置为产生参考激光束的参考激光器; 第一激光源，被配置为产生第一激光束; 被配置为产生第二激光束的第二激光源; 耦合到第一和第二激光源的感测谐振器，使得第一和第二激光束分别在第一和第二方向上传播通过感测谐振器; 谐振跟踪电子器件被配置为产生指示第一和第二激光束何时分离谐振的第一和第二控制信号; 第一和第二光学组合器被配置为分别用产生第一和第二拍频信号的参考激光束击打感测谐振器的第一和第二输出; 其中所述谐振跟踪电子设备被配置为基于所述第一和第二拍频信号来区分所述至少一个旋转感测误差和所述谐振器的所述第一和第二输出。

22. 发明申请

US20110141477A1 LIGHT-PHASE-NOISE ERROR REDUCER 有权
标题翻译：轻相噪声减少器
公开(公告)号：US20110141477A1
公开(公告)日：2011-06-16
申请号：US12644271
申请日：2009-12-22
申请人： Glen A. Sanders , Tiequn Qiu , Lee K. Strandjord
发明人： Glen A. Sanders , Tiequn Qiu , Lee K. Strandjord
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： A resonator gyroscope comprises a reference laser generator to produce a reference light; a first slave light source to produce a first slave light locked to the reference light; a second slave light source to produce a second slave light locked to the reference light; a first optical filter cavity coupled to at least one of the first and second slave light sources to filter out high-frequency fluctuations in the respective first and second slave lights; a resonator coupled to said first and second light sources, the resonator having first and second counter-propagating directions and resonance tracking electronics coupled to the resonator to generate a first beat frequency, a second beat frequency, and a third beat frequency; wherein the rotational rate of the resonator gyroscope is a function of the first, second and third beat frequencies.
摘要翻译：谐振器陀螺仪包括参考激光发生器以产生参考光; 第一从光源，用于产生锁定到参考光的第一从光; 第二从光源，用于产生锁定到参考光的第二从光; 耦合到所述第一和第二从属光源中的至少一个的第一光学滤波器空腔以滤除相应的第一和第二从属灯中的高频波动; 耦合到所述第一和第二光源的谐振器，所述谐振器具有耦合到谐振器的第一和第二反向传播方向和谐振跟踪电子器件，以产生第一拍频，第二拍频和第三拍频; 其中所述谐振器陀螺仪的旋转速率是所述第一，第二和第三拍频的函数。

23. 发明授权

US07933020B1 System and method for reducing laser phase noise in a resonator fiber optic gyroscope 有权
标题翻译：用于降低谐振器光纤陀螺仪中的激光相位噪声的系统和方法
公开(公告)号：US07933020B1
公开(公告)日：2011-04-26
申请号：US12636741
申请日：2009-12-13
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： G01C19/72
CPC分类号： G01C19/727
摘要： A resonator gyroscope comprises a reference laser generator to produce a reference light; a first slave light source to produce a first slave light locked to the reference light; a second slave light source to produce a second slave light locked to the reference light; a resonator coupled to said first and second light sources, the resonator having first and second counter-propagating directions and resonance tracking electronics coupled to the Sagnac resonator to generate a first beat frequency based on a first resonance frequency for the first counter-propagating direction, a second beat frequency based on a second resonance frequency for the second counter-propagating direction, and a third beat frequency based on a third resonance frequency for the second counter-propagating direction; wherein the rotational rate of the resonator gyroscope is a function of the first, second and third beat frequencies.
摘要翻译：谐振器陀螺仪包括参考激光发生器以产生参考光; 第一从光源，用于产生锁定到参考光的第一从光; 第二从光源，用于产生锁定到参考光的第二从光; 耦合到所述第一和第二光源的谐振器，所述谐振器具有耦合到所述Sagnac谐振器的第一和第二反向传播方向和谐振跟踪电子器件，以基于用于所述第一反向传播方向的第一谐振频率产生第一拍频，基于第二反向传播方向的第二谐振频率的第二拍频，以及基于第二反向传播方向的第三谐振频率的第三拍频; 其中谐振器陀螺仪的旋转速率是第一，第二和第三拍频的函数。

24. 发明授权

US07751055B2 Hollow core fiber optical gyro 有权
标题翻译：空心纤维光纤陀螺
公开(公告)号：US07751055B2
公开(公告)日：2010-07-06
申请号：US11342158
申请日：2006-01-27
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： Apparatus is provided for a fiber optic gyro. The fiber optic gyro includes a ring resonator having first and second counter-propagating directions. The ring resonator includes a coil having an axis and an optical fiber having a hollow core. The ring resonator is configured to produce a first resonance frequency when a first light beam circulates through the hollow core in the first counter-propagating direction and produce a second resonance frequency when a second light beam circulates through the hollow core in the second counter-propagating direction. A difference between the resonance frequencies indicates a rotation rate of the fiber optic gyro about the axis.
摘要翻译：提供用于光纤陀螺仪的设备。光纤陀螺仪包括具有第一和第二反向传播方向的环形谐振器。环形谐振器包括具有轴的线圈和具有中空芯的光纤。环形谐振器被配置为当第一光束在第一反向传播方向上循环通过中空芯时产生第一谐振频率，并且当第二光束在第二反向传播方向上通过中空芯线循环时产生第二共振频率方向。谐振频率之间的差异表示光纤陀螺绕轴线的旋转速率。

25. 发明授权

US07372574B2 System and method for stabilizing light sources in resonator gyro 有权
标题翻译：谐振陀螺陀螺稳定光源的系统和方法
公开(公告)号：US07372574B2
公开(公告)日：2008-05-13
申请号：US11298439
申请日：2005-12-09
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 stabilizing laser light sources of a resonator gyro. A resonator gyro comprises a first light source configured to produce a first input light, a second light source configured to produce a second input light, a resonator coupled to the first and second light sources, a resonance detection circuit coupled to the resonator, and a controller coupled to the resonance detection circuit and the first and second light sources. The resonance detection circuit detects a resonance frequency for each of the counter-propagating directions of the resonator. The controller tunes the first input light to a clockwise resonance frequency, and tunes the second input light to a counter-clockwise resonance frequency. A difference between the resonance frequencies is proportional to a rotational rate of the resonator gyro.
摘要翻译：提供了用于稳定谐振器陀螺仪的激光光源的方法和装置。共振器陀螺仪包括被配置为产生第一输入光的第一光源，被配置为产生第二输入光的第二光源，耦合到第一和第二光源的谐振器，耦合到谐振器的谐振检测电路，以及控制器耦合到谐振检测电路和第一和第二光源。谐振检测电路检测谐振器的每个反向传播方向的谐振频率。控制器将第一个输入光调谐到顺时针谐振频率，并将第二个输入光调谐到逆时针的共振频率。谐振频率之间的差异与谐振器陀螺仪的旋转速率成比例。

26. 发明授权

US09252559B2 Narrow bandwidth reflectors for reducing stimulated Brillouin scattering in optical cavities 有权
标题翻译：用于减少光腔中受激布里渊散射的窄带宽反射器
公开(公告)号：US09252559B2
公开(公告)日：2016-02-02
申请号：US13545497
申请日：2012-07-10
申请人： Chellappan Narayanan , Glen A. Sanders , Lee K. Strandjord , Jianfeng Wu
发明人： Chellappan Narayanan , Glen A. Sanders , Lee K. Strandjord , Jianfeng Wu
IPC分类号： H01S3/10 , G01C19/72
CPC分类号： H01S3/10023 , G01C19/721 , G01C19/727 , G02B6/00 , G02B6/02195 , G02B6/29316 , G02B6/29322 , G02B6/29356
摘要： An optical-fiber filter system to narrow a linewidth and to reduce noise fluctuations of an optical beam is provided. The optical-fiber filter system includes an optical fiber having a first end-face and an opposing second end-face, the first end-face and the second end-face setting a fiber length; a fiber Bragg grating having a first reflectivity positioned at the first end-face; and a reflector having a second reflectivity positioned at the second end-face. When the optical beam at a first frequency is coupled from a laser into one of the first end-face or the second end-face, a resonant cavity is established at the first frequency between the fiber Bragg grating and the reflector while Brillouin scattered light shifted from the first frequency within the optical fiber is transmitted through the fiber Bragg grating.
摘要翻译：提供了一种用于缩小线宽并减少光束的噪声波动的光纤滤波器系统。光纤滤波器系统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; 光纤布拉格光栅，其具有位于所述第一端面处的第一反射率; 以及具有位于第二端面处的第二反射率的反射器。当第一频率的光束从激光器耦合到第一端面或第二端面中的一个时，在光纤布拉格光栅和反射器之间的第一频率处建立谐振腔，而布里渊散射光偏移从光纤内的第一频率通过光纤布拉格光栅传输。

27. 发明申请

US20140204387A1 NARROW BANDWIDTH REFLECTORS FOR REDUCING STIMULATED BRILLOUIN SCATTERING IN OPTICAL CAVITIES 有权
标题翻译：用于减少光学照明中刺激性白炽灯散射的窄带反射镜
公开(公告)号：US20140204387A1
公开(公告)日：2014-07-24
申请号：US13545497
申请日：2012-07-10
申请人： Chellappan Narayanan , Glen A. Sanders , Lee K. Strandjord , Jianfeng Wu
发明人： Chellappan Narayanan , Glen A. Sanders , Lee K. Strandjord , Jianfeng Wu
IPC分类号： H01S3/10 , G01C19/72
CPC分类号： H01S3/10023 , G01C19/721 , G01C19/727 , G02B6/00 , G02B6/02195 , G02B6/29316 , G02B6/29322 , G02B6/29356
摘要： An optical-fiber filter system to narrow a linewidth and to reduce noise fluctuations of an optical beam is provided. The optical-fiber filter system includes an optical fiber having a first end-face and an opposing second end-face, the first end-face and the second end-face setting a fiber length; a fiber Bragg grating having a first reflectivity positioned at the first end-face; and a reflector having a second reflectivity positioned at the second end-face. When the optical beam at a first frequency is coupled from a laser into one of the first end-face or the second end-face, a resonant cavity is established at the first frequency between the fiber Bragg grating and the reflector while Brillouin scattered light shifted from the first frequency within the optical fiber is transmitted through the fiber Bragg grating.
摘要翻译：提供了一种用于缩小线宽并减少光束的噪声波动的光纤滤波器系统。光纤滤波器系统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; 光纤布拉格光栅，其具有位于所述第一端面处的第一反射率; 以及具有位于第二端面处的第二反射率的反射器。当第一频率的光束从激光器耦合到第一端面或第二端面中的一个时，在光纤布拉格光栅和反射器之间的第一频率处建立谐振腔，而布里渊散射光偏移从光纤内的第一频率通过光纤布拉格光栅传输。

28. 发明申请

US20130107271A1 SYSTEM AND METHOD FOR REDUCING ERRORS IN A RESONATOR FIBER OPTIC GYROSCOPE 有权
标题翻译：用于减少谐振器光纤陀螺中的误差的系统和方法
公开(公告)号：US20130107271A1
公开(公告)日：2013-05-02
申请号：US13287422
申请日：2011-11-02
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： G01C19/72
CPC分类号： G01C19/727 , G01C19/722
摘要： An exemplary resonator fiber optic gyroscope comprises a resonator having an optical fiber loop; a light source configured to generate a light beam; and an intensity modulation circuit coupled between the light source and the resonator. The intensity modulation circuit is configured to modulate the intensity of the light beam from the light source to output an intensity modulated signal to the resonator. The intensity modulation circuit is configured to produce the intensity modulated signal such that harmonics of the intensity modulated signal which overlap a primary wave of a counter-propagating light beam in the resonator have an amplitude below a predetermined threshold. Amplitudes below the predetermined threshold are negligible.
摘要翻译：一种示例性的谐振器光纤陀螺仪包括具有光纤回路的谐振器; 被配置为产生光束的光源; 以及耦合在光源和谐振器之间的强度调制电路。强度调制电路被配置为调制来自光源的光束的强度，以将强度调制信号输出到谐振器。强度调制电路被配置为产生强度调制信号，使得与谐振器中的相反传播光束的主波重叠的强度调制信号的谐波具有低于预定阈值的幅度。低于预定阈值的幅度可以忽略不计。

29. 发明授权

US08223341B2 System and method for enhancing signal-to-noise ratio of a resonator fiber optic gyroscope 有权
标题翻译：用于提高谐振器光纤陀螺仪的信噪比的系统和方法
公开(公告)号：US08223341B2
公开(公告)日：2012-07-17
申请号：US12789972
申请日：2010-05-28
申请人： Lee K. Strandjord , Glen A. Sanders , Tiequn Qiu
发明人： Lee K. Strandjord , Glen A. Sanders , Tiequn Qiu
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： A resonator fiber optic gyroscope includes a sensing resonator having a first resonance frequency for a first laser beam propagation direction and a second resonance frequency for a second laser beam propagation direction; an intensity modulator coupled to an output of the sensing resonator and configured to modulate the intensity of a signal output from the sensing resonator, wherein the intensity modulator modulates the output signal at an intensity modulation frequency; and resonance tracking electronics coupled to an output of the intensity modulator and configured to demodulate the intensity modulated signal output from the intensity modulator at a resonance tracking modulation frequency to produce a first demodulated signal; the resonance tracking electronics further configured to demodulate the first demodulated signal at the intensity modulation frequency, wherein the intensity modulation frequency is different from the resonance tracking modulation frequency.
摘要翻译：谐振器光纤陀螺仪包括：感测谐振器，具有用于第一激光束传播方向的第一谐振频率和用于第二激光束传播方向的第二谐振频率; 耦合到感测谐振器的输出并被配置为调制从感测谐振器输出的信号的强度的强度调制器，其中强度调制器以强度调制频率调制输出信号; 以及谐振跟踪电子器件耦合到所述强度调制器的输出并且被配置为以谐振跟踪调制频率解调从所述强度调制器输出的强度调制信号，以产生第一解调信号; 谐振跟踪电子器件还被配置为以强度调制频率解调第一解调信号，其中强度调制频率不同于谐振跟踪调制频率。

30. 发明授权

US08009296B2 Light-phase-noise error reducer 有权
标题翻译：轻相噪声减速器
公开(公告)号：US08009296B2
公开(公告)日：2011-08-30
申请号：US12644271
申请日：2009-12-22
申请人： Glen A. Sanders , Tiequn Qiu , Lee K. Strandjord
发明人： Glen A. Sanders , Tiequn Qiu , Lee K. Strandjord
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： A resonator gyroscope comprises a reference laser generator to produce a reference light; a first slave light source to produce a first slave light locked to the reference light; a second slave light source to produce a second slave light locked to the reference light; a first optical filter cavity coupled to at least one of the first and second slave light sources to filter out high-frequency fluctuations in the respective first and second slave lights; a resonator coupled to said first and second light sources, the resonator having first and second counter-propagating directions and resonance tracking electronics coupled to the resonator to generate a first beat frequency, a second beat frequency, and a third beat frequency; wherein the rotational rate of the resonator gyroscope is a function of the first, second and third beat frequencies.
摘要翻译：谐振器陀螺仪包括用于产生参考光的参考激光发生器; 第一从光源，用于产生锁定到参考光的第一从光; 第二从光源，用于产生锁定到参考光的第二从光; 耦合到所述第一和第二从属光源中的至少一个的第一光学滤波器空腔以滤除相应的第一和第二从属灯中的高频波动; 耦合到所述第一和第二光源的谐振器，所述谐振器具有耦合到谐振器的第一和第二反向传播方向和谐振跟踪电子器件，以产生第一拍频，第二拍频和第三拍频; 其中谐振器陀螺仪的旋转速率是第一，第二和第三拍频的函数。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式