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    • 4. 发明公开
    • RESONATOR FIBER OPTIC GYROSCOPE EMPLOYING COMMON CAVITY LENGTH MODULATION ALONG WITH HIGH BANDWIDTH LASER STABILIZATION
    • 红细胞生长因子受体蛋白酶抑制剂GEMEINSAMERHOHLRAUMLÄNGENMODULATIONZUSAMMEN MIT HOHER BANDBREITENLASERSTABILISIERUNG
    • EP2966406A1
    • 2016-01-13
    • EP15164566.0
    • 2015-04-21
    • Honeywell International Inc.
    • Strandjord, Lee K.Sanders, Glen A.Wu, Jianfeng
    • G01C19/72
    • G01C19/727G01C19/721
    • A resonator fiber optic gyroscope comprises a master laser device that emits a reference optical signal, a first slave laser device that emits a clockwise optical signal, and a second slave laser device that emits a counter-clockwise optical signal. A resonator ring cavity is in communication with the master laser device and the slave laser devices. A sine wave generator is coupled to the resonator ring cavity and outputs a common cavity modulation frequency comprising in-phase and quadrature signals. A laser stabilization servo receives a clockwise reflection signal that includes the common cavity modulation frequency from the resonator ring cavity. A modulation stripper coupled to the servo receives the in-phase and quadrature signals, receives a net error signal from the servo, demodulates the net error signal at the common cavity modulation frequency, and transmits a stripper signal to the servo to remove the signal at the common cavity modulation frequency.
    • 谐振器光纤陀螺仪包括发射参考光信号的主激光装置,发射顺时针光信号的第一从激光装置和发射逆时针光信号的第二从激光装置。 谐振腔环与主激光器件和从属激光器件通信。 正弦波发生器耦合到谐振器环腔并输出包括同相和正交信号的公共腔调制频率。 激光稳定伺服器接收包括来自谐振腔环的公共腔调制频率的顺时针反射信号。 耦合到伺服器的调制剥离器接收同相和正交信号,从伺服器接收净误差信号,以公共空腔调制频率解调净误差信号,并将去耦信号发送到伺服器以去除信号 共腔调制频率。
    • 6. 发明公开
    • Methods and apparatus of tracking/locking resonator free spectral range and its application in resonator fiber optic gyroscope
    • 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。
    • EP2857796A2
    • 2015-04-08
    • EP14185040.4
    • 2014-09-16
    • Honeywell International Inc.
    • Qiu, TiequnWu, JianfengStrandjord, Lee K.Sanders, Glen A.
    • G01C19/72
    • G01C19/661G01C19/727
    • 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).
    • 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。
    • 9. 发明公开
    • Light-phase-noise error reducer
    • 光相位噪声误差减小器
    • EP2333482A2
    • 2011-06-15
    • EP10191264.0
    • 2010-11-15
    • Honeywell International Inc.
    • Sanders, Glen A.Qiu, TiequnStrandjord, Lee K.
    • G01C19/72
    • G01C19/727
    • 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.
    • 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。