[1] Xie F,Zhang S L,Li Y,et al. Acta Optica Sinica,2002,22(6) : 726～730

[2] Lauzon J,Thibault S,Martin J,et al. Implementation and characterizaion of fiber bragg gratings linely chirped by temperture gradient. Opt Lett,1994,19(23) : 2027～2029

[3] Cruz J L,Diez A,Andres M V,et al. Fiber bragg gratings tuned and chirped using magnetic fields. Electron Lett,1997,33(3) : 235～236

[4] Zhao L,Cai H W,Li L,et al.Chinese Journal of Lasers,2002,29(4) : 313～316

[5] Qin Zixiong,Zeng Qingke,Yang Xiang,et al.Bidirectional grating wavelength shifter with a broadrange tunability by using a beam of uniform strength.IEEE Photon Technol Lett,2001,13(4): 326～328

[6] Yu Y L,Liu Z G,Dong X Y,et al. Acta Photonica Sinica,1998927(8): 714～718

[7] Liu C Y,Yu Y L,Zhang X M,et al. Acta Photonica Sinica,2003,32(9) : 1067～1069

[8] Liao Y B. Fiber Optics. Beijing: Tsinghua University Press,2000.197～204

[9] Liu H W. Mechanics of Materials. Beijing: Higher Education Press,1992.196～199