[1] [1] J. Blake, P. Tantaswadi, R. T. De Carvalho. In-line Sagnac interferometer current sensor[J]. IEEE Trans. Power Delivery, 1996, 11(1): 116～121

[2] [2] S. Wildermuth, K. Bohnert, H. Brndle. Interrogation of a birefringent fiber sensor by nonreciprocal phase modulation[J]. IEEE Photon. Technol. Lett., 2010, 22(18): 1388～1390

[3] [3] Zhang Chaoyang, Zhang Chunxi, Wang Xiaxiao et al.. Signal processing system for digital closed-loop fiber optic current sensor[J]. Proceedings of the CSEE, 2009, 29(30): 42～46

[4] [4] Wang Xiaxiao, Zhang Meng, Li Chuansheng et al.. Research on dynamic model of digital closed-loop fiber optic gyroscope[J]. Chinese J. Lasers, 2013, 40(2): 0205002

[5] [5] Wang Xiaoxiao, Zhang Chunxi, Zhang Chaoyang et al.. Study of polarization errors of all fiber optical current transformers[J]. Acta Photonica Sinica, 2007, 36(2): 320～323

[6] [6] Tang Feng. Measurement of Polarization Coupling in Polarization-Maintaining Fiber Using White Light Interferometry and Its Applications[D]. Tianjin: Tianjin University, 2005. 31～41

[7] [7] Lin Huizu, Yao Qiong, Hu Yongming. Testing system of fiber polariztion coupling based on polarization maintaining structure[J]. Chinese J. Lasers, 2010, 37(7): 1794～1799

[8] [8] Guo Zhenwu, Zhang Hongxia, Jia Dagong et al.. Measurement of polarization coupling and analysis of vibration disturbance signal[J]. Chinese J. Lasers, 2011, 38(8): 0805009

[9] [9] Zhao Chengjuan, Yang Yuanhong, Zhang Chunxi. Simulation research for coherence characteristics of broad-band source[J]. Chinese J. Spectroscopy Laboratory, 2005, 22(2): 268～272

[10] [10] H. C. Lefevre. The Fiber-Optic Gyroscope[M]. Zhang Guicai, Wang Wei Transl. Beijing: National Defense Industry Press, 2002

[11] [11] Liu Yin, Qiao Haiyan, Huang Jian et al.. Coupling technology of Y-waveguide integrated optical devices[J]. Semiconductor Optoelectronics, 2010, 31(2): 245～252

[12] [12] Liu Fumin, Huang Tao, Li Ruilong et al.. Effects of external stress applied to PM fiber-pigtail on extinction ratio of a Y-branch multi-functional integrated optical device[J]. Acta Photonica Sinica, 2011, 40(11): 1636～1640