[1] Ezekiel S, Balsamo S R. Passive ring resonator laser gyroscope[J]. Applied Physics Letters, 30, 478-480(1977).

[2] Ma H L, Zhang J J, Wang L L et al. Development and evaluation of optical passive resonant gyroscopes[J]. Journal of Lightwave Technology, 35, 3546-3554(2017). http://ieeexplore.ieee.org/document/7505606

[3] Lei M, Yu H Y, Fang Y et al. Out-of-lock frequency-tracking control of resonant fiber-optic gyro[J]. Chinese Journal of Lasers, 47, 0106002(2020).

[4] Qian W W, Wu C B, Lin Y et al. Resonant micro-optical gyroscope based on optical switch to suppress backscattering noise[J]. Chinese Journal of Lasers, 47, 1010003(2020).

[5] Strandjord L K, Qiu T, Salit M et al. Improved bias performance in resonator fiber optic gyros using a novel modulation method for error suppression[C]. //26th International Optical Fiber Sensors, Conference Technical Digest,September 24-28,2018. Washington, D.C.: OSA, ThD3(2018).

[6] Ma H L, He Z Y, Hotate K. Reduction of backscattering induced noise by carrier suppression in waveguide-type optical ring resonator gyro[J]. Journal of Lightwave Technology, 29, 85-90(2011).

[7] Takiguchi K, Hotate K. Bias of an optical passive ring-resonator gyro caused by the misalignment of the polarization axis in the polarization-maintaining fiber resonator[J]. Journal of Lightwave Technology, 10, 514-522(1992). http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=134206

[8] Takiguchi K, Hotate K. Method to reduce the optical Kerr-effect induced bias in an optical passive ring-resonator gyro[C]. //Optical Fiber Sensors, January 29, 1992. Washington, D.C.: OSA, W23(1992).

[9] Feng X, Ma Y J, Yu H Y et al. Investigation on the modulation of the optimized sensitivity for the resonator optic gyroscope[J]. Chinese Journal of Lasers, 37, 1064-1067(2010).

[10] Wang L L, Li H Z, Zhang J J et al. Optimization of the sinusoidal phase modulation technique in resonant fiber optic gyro[J]. Optics Communications, 387, 18-23(2017).

[11] Lefevre H C. The fiber-optic gyroscope[M], 22-23(2014).

[13] Sanders G, Strandjord L K, Wu J et al. Improvements of compact resonator fiber optic gyroscopes[C]. //2017 DGON Inertial Sensors and Systems (ISS), September 19-20, 2017, Karlsruhe, Germany., 1-12(2017).

[14] Shupe D M. Fiber resonator gyroscope: sensitivity and thermal nonreciprocity[J]. Applied Optics, 20, 286-289(1981). http://europepmc.org/abstract/MED/20309104

[15] Lu Y, Zhang J J, Ma H L et al. High-frequency Pound-Drever-Hall sensing of a short and high-finesse fiber ring resonator[C]. //2016 15th International Conference on Optical Communications and Networks (ICOCN), September 24-27, 2016. Hangzhou, China., 1-3(2016).

[16] Mao H, Ma H L, Jin Z H. Polarization maintaining silica waveguide resonator optic gyro using double phase modulation technique[J]. Optics Express, 19, 4632-4643(2011). http://europepmc.org/abstract/med/21369295

[17] Li H Z, Lin Y, Liu L et al. Signal processing improvement of passive resonant fiber optic gyroscope using a reciprocal modulation-demodulation technique[J]. Optics Express, 28, 18103-18111(2020). http://www.researchgate.net/publication/341707771_Signal_processing_improvement_of_passive_resonant_fiber_optic_gyroscope_using_a_reciprocal_modulation-demodulation_technique