[1] [1] Hill K O, Malo B, Vineberg K A et al.. Efficient mode-conversion in telecommunication fiber using externally written gratings. Electron. Lett., 1990, 26(16):1270～1272

[2] [2] Bennion I, Williams J A R, Zhang L et al.. UV-written in fibre Bragg gratings. Opt. and Quant. Electron., 1996, 28(2):93～135

[3] [3] Rao Yunjiang. Recent progress in in-fiber Bragg grating sensors: Applications.Proc. SPIE, 1998, 3555:429～441

[4] [4] Yariv A. Introduction to Optical Electronics. New York: John Wiley and Sons, 1989

[5] [5] Marcuse D. Theory of Dielectric Optical Waveguides. New York: Academic press, 1974

[6] [6] Lam D K W, Garside B K. Characterization of single-mode optical fiber filters. Appl. Opt., 1981, 20(3):440～445

[7] [7] Engan H E. Analysis of polarization-mode coupling by acoustic torsional wave in optical fibers. J. Opt. Soc. Am., 1996, 13(1):112～118

[8] [8] Yu Y, Dong X. Theoretical analysis of optical waves in a chirped fiber grating. Proc. SPIE, 1998, 3555:479～484

[9] [9] Kashyap R. Fiber Bragg Gratings. San Diego: Academic press, 1999

[11] [11] Kersey A D, Davis M A, Patrick H J et al.. Fiber grating sensors. J. Lightwave Technol., 1997, 15(8):1442～1463