[1] C. H. Volk, S. C. Gillespie, J. G. Mark et al.. Multioscillator ring laser gyroscopes and theiraApplications [C]. Optical Gyros and Their Application. RTO AGARDograph 339, 1999, 4.1～4.26

[2] G. J. Martin, S. C. Gillespie, C. H. Volk. Small ZLG triax technology [C]. AIAA Guidance Navigation and Control Conference, 1996, 1～9

[3] C. Volk, S. Gillespie, D. Patel. Application of the ZLG to strategic missions [C]. ION AM, 1993, 543～550

[4] M. Fernandez, B. Ebner, N. Dahlen. Zero-lockTM laser gyro [C]. Proceedings of the Annual Rocky Mountain Guidance and Control Conference, 1989, 235～241

[5] N. Kondo. Application of zero-lock laser gyro technology to high accuracy stellar-inertial systems [C]. ION NTM,1992, 253～262

[6] C. Lennon, T. Richmond. LN100S: common optical payload and bus gyro reference as sembly [C]. Guidance and Control, 2001, 425～440

[7] Inertial Sensor Assembly [EB/OL]. http://www.nsd.es.northropgrumman.com/html/inertial-sensor/characteristics.htm

[8] H. de Lang. Eigenstates of polarization in lasers [J]. Phillips Res. Rept., 1964, 19: 429～440

[9] G. B. Yntema, D. C. Grant, R. T. Warner. Differential Laser Gyro System [P]. US Patent 3,862,803, 1975-01-28

[10] K. Andringa. Laser Gyroscope [P]. US Patent 3,741,657, 1973-06-26

[11] I. W. Smith, T. A. Dorschner. Electromagnetic Wave Ring Resonator [P]. US Patent 4,110,045, 1978-08-29

[12] I. W. Smith, T. A. Dorschner. Biassing the Raytheon four frequency ring laser gyroscope [C]. SPIE, 1978, 157: 21～29

[13] G. J. Martin. Ring Laser Gyro Principles and Techniques [R]. N90-29532, 1990

[14] M. Murphy, S. Armacost, R. Barnes et al.. Ballistic Missile Guidance System Test in an Aircraft Pod [R]. AIAA 2000-4387, 2000

[15] G. J. Martin. Mulioscillator Ring Laser Gyro Using Compensated Optical Wedge [P]. US Patent, 5,907,402, 1999-05-25

[16] C. M. Ferrar. Dispersion Compensated Laser Gyro [P]. US Patent 3,973,851, 1976-08-10

[17] S. T. Hendow, G. J. Martin. Apparatus and Method for Detecting Rotation Rate and Direction of Rotation and Providing Cavity Length Control in Multioscillator Ring Laser Gyro scopes [P]. US Patent 4,836,675, 1989-06-06

[18] R. A. Mitchell, D. B. Hall, K. W. Shafer. Ring Laser Gyroscope Output Optics Detection System [P]. US Patent 5,116,132, 1992-05-26

[19] J. G. Mark, D. A. Tazartes, T. W. Hahn. Multioscillator Ring Laser Gyroscope Local Oscilla tor-Based Output Optics Detection System [P]. US Patent 5,189,487, 1993-02-23

[20] Northrop Grumman Selected for U.S. Air Force CNS/ATM I Catalog [EB/OL]. http://www.irconnect. com/noc/press/pages/news_release.html =95632

[21] Litton Receives $22 Million Contract to Develop and Supply Gyro Reference Assemblies for New U.S. Air Force Missile Warning Satellites [EB/OL]. http://www.allbusiness.com/government/government-bodies-offices-government/6975110-1.html.

[22] Northrop Grumman Delivers First Production Stellar Navigation System to U.S. Air Force [EB/OL]. http://www.spacedaily.com/reports/Northrop_Grumman_Delivers_First_Production_Stellar_Navigation_System_To_US_Air_Force_999.html

[23] Gao Bolong. Development situation and future of laser gyros [J]. J. National University of Defense Techonolgy, 1979, (1): 1～18

[24] Yang Zaifu, Yuan Xiaodong, Zhang Bin et al.. The S-P anisotropy effects in differential laser gyros [J]. Acta Optica Sinica, 1998, 18(9): 1255～1260

[25] Yang Zaifu, Yuan Xiaodong, Zhang Bin et al.. The loss difference in differential laser gyro [J]. Chinese J. Lasers, 1999, A26(1): 39～42

[26] Yuan Jie, Huang Yun, Han Shengjie et al.. The null shift of the differential laser gyro caused by the asymmetry of the left and right gyro′s SFC [J]. Laser Journal, 2002, 23(3): 22～24

[27] Luo Hui, Guo Shaojun. High precision frequency stability measurement for ring laser [J]. Infrared and Laser Engineering, 2006, 35(S): 63～66

[28] Yuan Jie, Huang Yun, Jiang Anguo. The thermo effect of the laser gyro and the measuring of its temperature [J]. Laser Journal, 2000, 21(4): 46～48

[29] Wu Guoyong, Gu Qitai. Thermal bias mechanism of four mode multi-oscillation ring laser gyro [J]. J. Chinese Inertial Technology, 2002, 10(4): 44～48

[30] Wu Guoyong, Gu Qitai. Research on the relation of frequency sum to temperature in the four frequency RLG [J]. Optical Technique, 2002, 28(6): 508～512

[32] Yuan Jie, Long Xingwu. Optical-axis perturbation in nonplanar ring resonators [J]. Opt. Commun., 2008, 281(5): 1204～1210

[33] Jie Yuan, Xingwu Long, Linmei Liang et al.. Nonplanar ring resonator modes: generalized Gaussian beams [J]. Appl. Opt., 2007, 46(15): 2980～2989

[34] Hu Qiang, Yan Jizhong, Chen Linfeng. Study on the complex astigmatism in nonplanar cavity rlg and design of the diaphragm [J]. Acta Photonica Sinica, 2011, 40(3): 375

[35] Yang Zaifu, Yuan Xiaodong, Zhang Bin et al.. The loss differential in out-of-plane cavity laser gyros [J]. Laser Technology, 1999, 23(3): 138～141

[36] Dandan Wen, Dong Li, Jianlin Zhao. Analysis on the polarization property of the eigenmodes in a nonplanar ring resonator [J]. Appl. Opt., 2011, 50(18): 3057～3063

[37] Song Yuan. Research on a Loss Instrument of Out-of-Plane Ring Resonator [D]. Xi′an: School of Telecommunications Engineering of Xidian University, 2009

[38] Di Nan, Zhao Jianlin, Wang Zhibing. Analysis on magnetic field homogeneity of dual-ring permanent magnets [J]. Chinese J. Lasers, 2009,36(9): 2290～2294

[39] Han Wenfa. Optimization of Faraday Cell Design in the Four Mode Differential Laser Gyroscope [D]. Changsha: National University of Defense Technology, 2005

[40] Di Nan, Zhao Jianlin, Jiang Yajun et al.. Experiment research on temperature response of Faraday effect in paramagnetic terbium glass [J]. Acta Photonica Sinica, 2006, 35(11): 1645～1648

[41] Chen Xinwei, Qiu Fusheng, Liu Tiegen. A method for measuring completely the Faraday effects and losses in optical mirror coated [J]. Acta Photonica Sinica, 2009, 38(11): 2937～2941

[42] Wang Zhiguo. Bias Characteristics of Four-Mode Differential Laser Gyroscope with Nonplanar Cavity and Its Electronic System Design [D]. Changsha: National University of Defense Technology, 2010

[43] Wang Zhiguo, Long Xingwu, Wang Fei et al.. Path length control for nonplanar four-mode differential laser gyro with hill-climbing method [J]. Acta Optica Sinica, 2010, 30(11): 3233～3238

[44] Wang Zhiguo, Long Xingwu, Wang Fei et al.. Experimental investigations on magnetic sensitivity in four-frequency differential laser gyros [J]. Chinese J. Lasers, 2010, 37(3): 713～717

[45] Wang Zhiguo, Long Xingwu, Wang Fei et al.. Effect of magnetic field on light intensity and bias in four-frequency differential laser gyros [J]. Optical Technology, 2010, 36(4): 540～545

[46] Wang Zhiguo, Long Xingwu, Wang Fei. Dispersion equalization of four-frequency differential laser gyroscope with non-planar resonator [J]. Acta Optica Sinica, 2009, 29(10): 2892～2897

[47] Wang Guochen, Yang Jianqiang. Correlation of differential laser gyro′s performance and room temperature [J]. Acta Optica Sinica, 2009, 29(4): 1058～1061

[48] Wang Zhiguo, Long Xingwu, Wang Fei. Temperature compensation for four-frequency differential laser gyro with nonplanar cavity [J]. Chinese J. Sensors and Actuators, 2010, 23(9): 1236～1241

[49] Huang Zongsheng, Qin Shiqiao, Wang Xingshu et al.. Pulse subdivision technique for differential ring laser gyro [J]. Laser Journal, 2007, 28(3): 33～34

[50] Wang Zhiguo, Wang Fei, Hu Shaomin. High resolution countering circuit for differential laser gyros based on FPGA [J]. Laser Journal, 2009, 30(1): 30～31

[51] Yuan Baolun. Research on Rotating Inertial Navigation System with Four-Frequency Differential Laser Gyroscope [D]. Changsha: National University of Defense Technology, 2007

[52] Huang Zongsheng. Research on Rotary North Finder Based on Ring Laser Gyro [D]. Changsha: National University of Defense Technology, 2007

[53] Jia Hongjin. Research on Key Technology of Platform Gyrocompass with Four-Frequency Differential Laser Gyroscope [D]. Changsha: National University of Defense Technology, 2009

[54] Zhang Yali. Magnetic Field Shielding Technology for Laser Gyros [D]. Xi′an: North Western Ploytechnical University, 2006

[55] Song Rui, Tang Jianxun, Zhou Jian. Research on how current affects the angle random walk of dithered laser gyroscope [J]. Laser Journal, 2010, 31(2): 36～38

[56] Long Xingwu, Yu Xudong, Zhang Pengfei et al.. Single-rotating inertial navigation system with ring laser gyroscope [J]. J. Chinese Inertial Technology, 2010, 18(2): 149～153