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1. 发明授权

EP2698605B1 Fiber resonator gyroscope with low round trip loss and high output power 失效转让
公开(公告)号：EP2698605B1
公开(公告)日：2019-04-03
申请号：EP13178979.4
申请日：2013-08-01
申请人： Honeywell International Inc.
发明人： Qiu, Tiequn , Sanders, Glen A. , Strandjord, Lee K.
IPC分类号： G01C19/72

2. 发明授权

EP2333482B1 Light-phase-noise error reducer 有权转让
公开(公告)号：EP2333482B1
公开(公告)日：2019-01-09
申请号：EP10191264.0
申请日：2010-11-15
申请人： Honeywell International Inc.
发明人： Sanders, Glen A. , Qiu, Tiequn , Strandjord, Lee K.
IPC分类号： G01C19/72

3. 发明公开

EP2589929A3 System and method for reducing errors in a resonator fiber optic gyroscope 有权转让
标题翻译：系统和用于降低谐振器光纤陀螺仪误差的方法
公开(公告)号：EP2589929A3
公开(公告)日：2016-01-27
申请号：EP12190429.6
申请日：2012-10-29
申请人： Honeywell International Inc.
发明人： Strandjord, Lee K. , Qiu, Tiequn , Sanders, Glen A.
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.

4. 发明公开

EP2927636A1 SYSTEMS AND METHODS FOR STABILIZED STIMULATED BRILLOUIN SCATTERING LASERS WITH ULTRA-LOW PHASE NOISE 有权转让
标题翻译： SYSTEME UND VERFAHRENFÜRSTABILISIERTE STIMULIERTE BRILLOUIN-STREUUNGS-LASER MIT ULTRANIEDRIGEM PHASENRAUSCHEN
公开(公告)号：EP2927636A1
公开(公告)日：2015-10-07
申请号：EP15159754.9
申请日：2015-03-18
申请人： Honeywell International Inc.
发明人： Qiu, Tiequn , Wu, Jianfeng , Sanders, Glen A.
IPC分类号： G01C19/72 , H01S3/067 , H01S3/30
CPC分类号： H01S3/302 , G01C19/727 , H01S3/0085 , H01S3/06791 , H01S3/083 , H01S3/1053 , H01S3/1304 , H01S3/1305 , H01S3/30
摘要： Systems and methods for stabilized stimulated Brillouin scattering lasers with ultra-low phase noise are provided. In one embodiment, a method for producing a Stimulated Brillouin Scattering (SBS) beam comprises: generating laser light from a tunable laser source; splitting the laser light into a first light beam and a second light beam; creating a phase modulated light beam by applying a phase modulation to the first light beam; locking a frequency of the laser light to a frequency of a ring cavity using the phase modulated light beam and a Pound-Drever-Hall servo loop coupled to the tunable laser source; coupling the second light beam into the ring cavity in a direction of travel opposite to that of the phase modulated light beam; generating a Stimulated Brillouin Scattering light beam in the ring cavity from the second light beam; and outputting the Stimulated Brillouin Scattering light beam.
摘要翻译：提供了具有超低相位噪声的稳定受激布里渊散射激光器的系统和方法。在一个实施例中，一种用于产生受激布里渊散射（SBS）光束的方法包括：从可调激光源产生激光; 将激光分为第一光束和第二光束; 通过对所述第一光束施加相位调制来产生相位调制光束; 使用相位调制光束将激光的频率锁定到环形腔的频率，以及耦合到可调谐激光源的磅Drever-Hall伺服环路; 将第二光束沿与相位调制光束相反的行进方向耦合到环形腔中; 从所述第二光束产生在所述环形腔中的受激布里渊散射光束; 并输出受激布里渊散射光束。

5. 发明公开

EP2857796A2 Methods and apparatus of tracking/locking resonator free spectral range and its application in resonator fiber optic gyroscope 有权转让
标题翻译：法和一谐振器的自由光谱范围的跟踪/自锁装置，在一个Faserringresonator应用程序。
公开(公告)号：EP2857796A2
公开(公告)日：2015-04-08
申请号：EP14185040.4
申请日：2014-09-16
申请人： Honeywell International Inc.
发明人： Qiu, Tiequn , Wu, Jianfeng , Strandjord, Lee K. , Sanders, Glen A.
IPC分类号： G01C19/72
CPC分类号： G01C19/661 , G01C19/727
摘要： A resonator fiber optic gyroscope (10) is provided. The resonator fiber optic gyroscope (10) includes a gyroscope resonator (150), a laser (106); a clockwise modulator (112); a clockwise circulator (114); a clockwise reflection detector (118); a first-lock-in-amplifier (251), a clockwise-resonance-tracking servo (206) to receive output from the first-lock-in-amplifier (251) and to provide feedback to the laser (106) to lock the laser (106) to the gyroscope resonator (150); a clockwise transmission detector (115) to detect an optical beam output from the counter-clockwise input port (151); a second servo (257); a second-lock-in-amplifier (252); and a third-lock-in-amplifier (253). The first and third lock-in-amplifiers (251,252) demodulate at the first harmonic of the modulation frequency. The second-lock-in-amplifier demodulates at the second harmonic of the modulation frequency. Either the modulation frequency of the clockwise optical beam (126) is locked to (n+0.5) times the FSR through the second servo (257), where n is zero or a positive integer, or the FSR is locked to 1/(n + 0.5) times the modulation frequency of the clockwise optical beam through the second servo (257).
摘要翻译：一种谐振器，光纤陀螺仪（10）设置。所述谐振器的光纤陀螺仪（10）包括一个陀螺仪谐振器（150），激光器（106）; 顺时针调制器（112）; 顺时针循环器（114）; 顺时针反射检测器（118）; 第一锁定放大器（251），以顺时针谐振跟踪伺服（206），以接收从所述第一锁定放大器（251）输出，并且将反馈提供给所述激光器（106）来锁定激光（106）到所述陀螺仪谐振器（150）; 顺时针透射检测器（115），以在从逆时针输入端口（151）的光输出光束检测; 第二伺服（257）; 第二锁定放大器（252）; 和第三锁定放大器（253）。在第一和第三的锁相放大器（251.252）解调在调制频率的第一谐波。第二锁定放大器解调在调制频率的二次谐波。无论是顺时针光束（126）的调制频率被锁定到（n + 0.5）倍的FSR通过第二伺服（257），其中n是零或正整数，或FSR锁定到1 /（N + 0.5）倍过第二功率（257）的顺时针光束的调制频率。

6. 发明公开

EP2251642A3 Compact resonator fiber optic gyroscope 有权转让
标题翻译：紧凑光纤陀螺与环形谐振器
公开(公告)号：EP2251642A3
公开(公告)日：2012-09-19
申请号：EP10162435.1
申请日：2010-05-10
申请人： Honeywell International Inc.
发明人： Qiu, Tiequn , Strandjord, Lee , Sanders, Glen A.
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： Substantially symmetric RFOG configurations for rotation rate sensing using two input/output coupling components. Configurations are disclosed where optical coupling components handles both input and output lightwaves. Reducing the number of input/output coupling components while maintaining a substantially symmetric configuration for the CW and CCW beam reduces losses, prevents realization of bias errors due to asymmetric light paths in the resonator, and produces better signal to noise performance. In addition, the invention discloses systems integrating multiple functions into compact micro-optic devices that are easier to fabricate and package, leading to compact RFOGs with reduced cost and improved manufacturability.

7. 发明公开

EP2333482A2 Light-phase-noise error reducer 有权转让
标题翻译：光相位噪声误差减小器
公开(公告)号：EP2333482A2
公开(公告)日：2011-06-15
申请号：EP10191264.0
申请日：2010-11-15
申请人： Honeywell International Inc.
发明人： Sanders, Glen A. , Qiu, Tiequn , Strandjord, Lee K.
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属光; 第二从属光源，用于产生锁定到参考光的第二从属光; 第一光学滤波器腔，耦合到第一和第二从属光源中的至少一个以滤除相应第一和第二从属光源中的高频波动; 耦合到所述第一和第二光源的谐振器，所述谐振器具有第一和第二反向传播方向以及耦合到所述谐振器的谐振跟踪电子器件，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。

8. 发明公开

EP2293014A3 Resonator optical gyroscope having input beam modulation optimized for high sensitivity and low bias 失效转让
标题翻译：与输入光束调制，高灵敏度和低偏压的光谐振器陀螺仪被优化
公开(公告)号：EP2293014A3
公开(公告)日：2011-05-11
申请号：EP10171309.7
申请日：2010-07-29
申请人： Honeywell International Inc.
发明人： Qiu, Tiequn , Sanders, Glen A. , Strandjord, Lee
IPC分类号： G01C19/72
CPC分类号： G01C19/72
摘要： Systems and methods for optimizing input beam modulation for high gyro sensitivity and low bias errors. The present invention is a resonator optical gyroscope having an optimized phase-modulation amplitude (frequency) for a selected modulation frequency (amplitude) that maximizes the gyro signal-to-noise (S/N) sensitivity. For selected values of the phase modulation amplitude, the polarization cross-coupling induced intensity modulation can be nulled. By setting the phase modulation amplitudes substantially close to these nulling points (e.g. M= 3.832 or 7.016 radians, which causes the first order Bessel function to be zero J 1 ( M ) = 0) and then optimizing the modulation frequency, the intensity modulation induced bias is reduced to zero and gyro S/N sensitivity is maximized.
摘要翻译：系统和用于优化输入光束调制为高陀螺仪灵敏度和低偏置误差的方法。本发明是具有用于所选择的频率调制（振幅）进行了优化相位调制振幅（频率）的谐振器光学陀螺那样最大化陀螺仪信号 - 噪声（S / N）的灵敏度。对于相位调制振幅的所选值，偏振交叉耦合感应强度调制可以被清零。通过设置相位调制振幅基本上接近于合成归零点（例如，M = 3832个或7016弧度，这导致第一阶贝塞尔函数为零Ĵ1（M）= 0），然后优化调制频率，强度调制引起偏压被降低到零和陀螺仪的S / N灵敏度最大化。

9. 发明授权

EP2896935B1 Systems and methods for a polarization matched resonator fiber optic gyroscope 有权转让
公开(公告)号：EP2896935B1
公开(公告)日：2018-10-03
申请号：EP15150865.2
申请日：2015-01-12
申请人： Honeywell International Inc.
发明人： Sanders, Glen A. , Srandjord, Lee K. , Qiu, Tiequn , Wu, Jianfeng
IPC分类号： G01C19/72
CPC分类号： G01C19/722 , G01C19/721 , G01C19/727 , G02F1/2252 , G02F2/00
摘要： Systems and methods for a polarization matched resonator fiber optic gyroscope are provided. In one embodiment an RFOG comprises: a light source; a fiber optic ring resonator; a photodetector that outputs an electrical signal that varies as a function of optical intensity; and an input light polarization servo. A light beam from the servo is launched into the resonator ring in a first direction of circulation. The input polarization servo comprises a birefringence modulator that modulates a phase shift between two components of an input polarization state of the light beam at É m , the modulator is controlled to drive towards zero a 1 st harmonic of É m as measured in the electrical signal. The servo further comprises a tunable ½ waveplate that adjusts an amplitude of the two components of the input polarization state relative to each other. The tunable ½ waveplate is controlled to maximize a peak optical intensity as measured in the electrical signal.

10. 发明授权

EP2428767B1 RFOG with optical heterodyning for optical signal discrimination 失效转让
公开(公告)号：EP2428767B1
公开(公告)日：2018-08-15
申请号：EP11180285.6
申请日：2011-09-06
申请人： Honeywell International Inc.
发明人： Strandjord, Lee K. , Sanders, Glen A. , Qiu, Tiequn
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.

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