[1] Wang Zhenbao, Yang Pengling, Shao Bibo, et al.. Fiber Bragg grating for simultaneous measurement of strain and temperature[J]. Laser & Optoelectronics Progress, 2013, 50(10): 100602.

[2] Ji Zhengji, Wu Xiangnong, Yin Ye, et al.. Sagnac loop cascaded filter based on highly birefringent photonic crystal fiber [J]. Laser & Optoelectronics Progress, 2014, 51(4): 040603.

[3] Sun Tingting, Wang Zhi, Zhao Lilong. Performance studies on Er3 + doped amplifier based on Bragg fiber with high index core[J]. Laser & Optoelectronics Progress, 2010, 47(12): 120603.

[4] Liu Deming, Xian Qing, Huang Dexiu. Optical Fiber Optics[M]. Beijing: National Defense Industry Press,1995. 258-259.

[5] P Chu, R Sammut. Analytical method for calculation of stresses and material birefringence in polarization-maintaining optical fiber[J]. J Lightwave Technol, 1984, 2(5): 650-662.

[6] D Lu, T Ge, J Wu, et al.. Theoretical analysis on thermal stress induced birefringence in rectangular and D-shaped double cladding fiber[C]. SPIE, 2008, 7278: 72780M.

[7] Y Meng, M Wu. Stress and modal birefringence of single-mode specialty optical fibers with three-stress regions[J]. Journal of Shanghai University (English Edition), 2011, 15(2): 137-142.

[8] Kun-Hsieh Tsai, Kyung-Suk Kim, T F Morse. General solutions for stress-induced polarization in optical fibers[J]. J Lightwave Technol, 1991, 9(1): 7-17.

[9] Y Liu, B M A Rahman, K T V Grattan. Analysis of the birefringence properties of optical fibers made by a preform deformation technique[J]. J Lightwave Technol, 1995, 13(2): 142-147.

[10] R Guan, F Zhu, Z Gan, et al.. Stress birefringence analysis of polarization maintaining optical fibers[J]. Optical Fiber Technology, 2005, 11(3): 240-254.