[1] A M Vengsarkar, P J Lemaire, J B Judkins, et al.. Long-period fiber gratings as band-rejection filters[J]. J Lightwave Technol, 1996, 14(1): 58-65.
[2] Xuewen Shu, Lin Zhang, I Bennion. Sensitivity characteristics of long-period fiber gratings[J]. J Lightwave Technol, 2002, 20(2): 255-266.
[3] D D Davis, T K Gaylord, E N Glytsis, et al.. Very-high-temperature stable CO2 -laser-induced long-period fiber gratings[J]. Electron Lett, 1999, 35(9): 740-742.
[4] T Erdogan. Cladding-mode resonances in short and long period fiber grating filters[J]. J Opt Soc Am A, 1997, 14(8): 1760-1773.
[5] Wang Muguang, Wei Huai, Jian Shuisheng. Experimental and theoretical study on the compound dual-period fibre grating[J]. Acta Physica Sinica, 2003, 52(3): 609-614.
[6] X Shu, L Zhang, I Bennion. Sensitivity characteristics of long-period fibre gratings[J]. J Lightwave Technol, 2002, 20(2): 255-266.
[8] Xu Yanping, Gu Zhengtian, Chen Jiabi. The relation between resonant wavelengths and film optical parameters of triple-clad long-period fiber grating[J]. Optical Technique, 2006, 32(2): 177-182.
[9] D D Davis, T K Gaylord, E N Glytsis, et al.. Long-period grating fabrication with focused CO2 laser pulses[J]. Electron Lett, 1998, 34(3): 302-303.
[10] Y J Rao, Y P Wang, Z L Ran, et al.. Novel fiber-optic sensors based on long-period fiber gratings written by highfrequency CO2 laser pulses[J]. J Lightwave Technol, 2003, 21(5): 1320-1327.
[11] YiPing Wang, Limin Xiao, D N Wang, et al.. Highly sensitive long-period fiber-grating strain sensor with low temperature sensitivity[J]. Opt Lett, 2006, 31(23): 3414-3416.
[12] S Savin, M J F Digonnet, G S Kino, et al.. Tunable mechanically induced long-period fiber gratings[J]. Opt Lett, 2000, 25(10): 710-712.
[13] In Kag Hwang, Seok Hyun Yun, Byoung Yoon Kim. Long-period fiber gratings based on periodic microbends[J]. Opt Lett, 1999, 24(18): 1263-1265.
[14] O V Ivanov, P Caldas, G Rego. Origin of coupling to antisymmetric cladding modes in arc-induced long-period fiber gratings[C]. SPIE, 2007, 6619: 66910x.
[15] Paulo Calds, Gaspar Rego, Oleg V Ivanov, et al.. Characterization of the response of a dual resonance of an arcinduced long-period grating to various physical parameters[J]. Appl Opt, 2010, 49(16): 2994-2999.
[16] Hyo Sang Kim, Seok Hyun Yun, In Kag Kwang, et al.. All-fiber acousto-optic tunable notch filter with electronically controllable spectral profile[J]. Opt Lett, 1997, 22(19): 1476-1478.
[17] Sun Do Lim, Kyung Jun Park, Sunghoon Eom, et al.. Ultrawidely tunable single-mode fiber acousto-optic filter[J]. Opt Lett, 2011, 36(7): 1101-1103.
[18] ChienHung Lin, Qun Li, Amy A Au, et al.. Strain-induced thermally tuned long-period fiber gratings fabricated on a periodically corrugated substrate[J]. J Lightwave Technol, 2004, 22(7): 1818-1827.