[1] [1] KOO K P, KERSEY A D. Bragg grating-based laser sensor systems with interferometric interrogation and wavelength division multiplexing［J］. J. Lightwave Technol., 1995,13(7):1243-1249.

[2] [2] BALL G A, MOREY W W, CHEO P K. Single- and multipoint fiber-laser sensors［J］. IEEE Photon. Technol. Lett., 1993,5(2):267-270.

[3] [3] GUO M J, JIANG D SH, YUAN H C. Low temperature properties of fiber Bragg grating temperature sensors with two package methods［J］. Opt. Precision Eng., 2007,15(3):326-330.(in Chinese)

[4] [4] BHATIA V, VENGSARKAR A M. Optical fiber long-period grating sensors［J］. Opt. Lett., 1996,21(9):692-694.

[5] [5] LOWDER T L, SMITH K H, IPSON B L, et al.. High-temperature sensing using surface relief fiber Bragg gratings［J］. IEEE Photon. Technol. Lett., 2005,17(9):1926-1928.

[6] [6] ZHU Y, HUANG Z, SHEN F, et al.. Sapphire-fiber-based white-light interferometric sensor for high-temperature measurements［J］. Opt. Lett., 2005,30(7):711-713.

[7] [7] NGUYEN L V, HWANG D, MOON S, et al.. High temperature fiber sensor with high sensitivity based on core diameter mismatch［J］. Opt. Express, 2008,16(15):11369-11375.

[8] [8] ZHANG Y, ZHANG J ZH, LIU ZH H, et al.. Multimode fiber based temperature sensor with the capability of wavelength encoding［J］. Acta Optica Sinica, 2009,29(2):327-330.(in Chinese)

[9] [9] CHOI H Y, KIM M J, LEE B H. All-fiber Mach-Zehnder type interferometers formed in photonic crystal fiber［J］. Opt. Express, 2007,15(9):5711-5720.

[10] [10] LI X J, YU Y Q, HONG X M, et al.. Analysis on temperature sensing properties of photonic crystal fiber based on liquid filling［J］. Chinese J. Lasers, 2009,36(5):1140-1144.(in Chinese)

[11] [11] LU P, MEN L, SOOLEY K, et al.. Tapered fiber Mach-Zehnder interferometer for simultaneous measurement of refractive index and temperature［J］. Appl. Phys. Lett., 2009,94(13):131110-1-3.

[12] [12] WANG Y, LI Y, LIAO C, et al.. High-temperature sensing using miniaturized fiber in-line Mach-Zehnder interferometer［J］. IEEE Photon. Techol. Lett., 2010,22(1):39-41.

[13] [13] MIYAMOTO M, KIKUCHI Y, YAMAUCHI R, et al.. Fabrication and temperature sensing characteristics of a new dual-core single-mode fiber sensor［C］. Optical Fiber Communication Conference (OFC) 1983 OSA Technical Digest Series, 1983: paper TuB2.

[14] [14] YUAN L, LIU Z, YANG J, et al.. Bitapered fiber coupling characteristics between single-mode single-core fiber and single-mode multicore fiber［J］. Appl. Opt., 2008,47(18):3307-3312.

[15] [15] ZHU X L, YUAN L B, LIU ZH H, et al.. Coupling approach and mechanism of single-core and twin-core fiber［J］. Chinese J. Lasers, 2009,36(4):913-917.(in Chinese)

[16] [16] LI Q, LIN C H, TSENG P Y, et al.. Demonstration of high extinction ratio modal interference in a two-mode fiber and its applications for all-fiber comb filter and high-temperature sensor［J］. Opt. Commun., 2005,250(2):280-285.