[1] T A Birks, J C Knight, P St J Russell. Endlessly single-mode photonic crystal fiber [J]. Opt Lett, 1997, 22(13): 961-963.
[2] A Ortigosa-Blanch, J C Knight, W J Wadsworth, et al.. Highly birefringent photonic crystal fibers [J]. Opt Lett, 2000, 18(25): 1325-1327.
[3] Yu Chongxiu, Yuan Jinghui, Shen Xiangwei. Recent progress of study on photonic crystal fiber [J]. Acta Optica Sinica, 2011, 31(9): 0900139.
[4] Joel Villatoroa, Vittoria Finazzi. Temperature-insensitive photonic crystal fiber interferometer for absolute strain sensing [J]. Appl Phys Lett, 2007, 91(9): 091109.
[5] X Dong, H Y Tam, P Shum. Temperature-insensitive strain sensor with polarization-maintaining photonic crystal fiber based Sagnac interferometer [J]. Appl Phys Lett, 2007, 90(15): 19-21.
[6] Y J Rao, T Zhu, X C Yang, et al.. In-line fiber-optic etalon formed by hollow-core photonic crystal fiber [J]. Opt Lett, 2007, 18(32): 2662-2664.
[7] H Y Choi, M J Kim, B H Lee. All-fiber Mach-Zehnder type interferometers formed in photonic crystal fiber [J]. Opt Express, 2007, 15(9): 5711-5720.
[8] Tang Changping, Deng Ming, Zhu Tao, et al.. Photonic crystal fiber based M-Z interferometer for refractive index measurement [J]. J Optoelectronics·Laser, 2011, 22(9): 1304-1308.
[9] Liu Qi, Qin Wang. Refractive index sensor based on tapered PCF in-line interferometer [J]. Chin Opt Lett, 2012, 10(9): 090601.
[10] T Wei, X Lan, H Xiao. Fiber in line core-cladding-mode Mach-Zehnder interferometer fabricated by two point CO2 laser irradiations [J]. IEEE Photon Technol Lett, 2009, 21(10): 669-671.
[11] Y Wang, Y H Li, C R Liao, et al.. High-temperature sensing using minlaturized fiber in-line Mach-Zehnder interferometer [J]. IEEE Photon Technol Lett, 2010, 22(1): 39-41.
[12] Yan Liu, Bo Liu, Hao Zhang, et al.. Mach-Zehnder interferometer based on core-cladding mode coupling in single mode fibers [J]. Frontiers of Optoelectronics, 2010, 3(4): 364-369.
[13] Z Tian, S S H Yam, J Barnes, et al.. Refractive index sensing with Mach-Zehnder interferometer based on concatenating two single mode fiber tapers [J]. IEEE Photon Technol Lett, 2008, 20(8): 626-628.
[14] Chen Weiguo, Lou Shuqin, Wang Liwen, et al.. Mach-Zehnder interferometer based on dual-core photonic crystal fiber and its strain characteristics [J]. J Optoelectronics·Laser, 2011, 22(2): 175-179.
[15] Hae Young Choi, Myoung Jin Kim, Byeong Ha Lee. All-fiber Mach-Zehnder type interferometers formed in photonic crystal fiber [J]. Opt Express, 2007, 15(9): 5711-5720.
[16] Li Can. Study on Fiber-Optic Mach-Zehnder Sensor Based on Mode Interference [D]. Hefei: Anhui University, 2011. 22-24.