[3] CAUCHETEUR C, BETTE S, GARCIA-OLCINA R, et al. Influence of the grating parameters on the polarization properties of fiber Bragg gratings［J］. Journal of Lightwave Technology, 2009, 27(8): 1000-1010.

[4] BOTERO-CADAVID J F, CAUSADO-BUELVAS J D, TORRES P. Spectral properties of locally pressed fiber Bragg gratings written in polarization maintaining fibers［J］. Journal of Lightwave Technology, 2010, 28(9): 1291-1297.

[5] OH S T, HAN W T, PEAK U C, et al. Discrimination of temperature and strain with a single FBG based on the birefringence effect［J］. Optics Express, 2004, 12(4): 724-729.

[6] ZHANG Jin-long, YU Zhong-xiu, WANG Kui-ru, et al.A fiber grating dual-parameter sensor of ditrigon cantilever beam for measurement of strain and temperature［J］. Acta Photonica Sinica, 2009, 38(4)：770-774.

[7] QIAO Xue-guang, JIA Zhen-an, FU Hai-wei, et al. Theory and experiment about in-fiber Bragg grating temperature sensing［J］.Acta Physica Sinica, 2004, 53(2)：494-497.

[8] CHAI Wei. Study on FBG temperature sensing technology［D］. Wuhan: Wuhan University of Technology, 2004：13-15.

[9] LI Zhi-zhong. Theoretical and experimental research on sensing characteristics of birefringent fiber gratings［D］. Beijing: National University of Defense Technology, 2006: 1-64.

[10] ZHANG Xia, HUANG Yong-qing, REN Xiao-min. Experimental researches on birefringence of fiber Bragg grating［J］. Acta Photonica Sinica, 2005, 34(2): 241-243.