[1] A. Martinez, I. Y. Khrushchev, I. Bennion. Thermal properties of fibre Bragg gratings inscribed point-by-point by infrared femtosecond laser[J]. Electron. Lett., 2005, 41(4): 224~225
[2] A. Martinez, I. Y. Khrushchev, I. Bennion. Direct inscription of Bragg gratings in coated fibers by an infrared femtosecond laser[J]. Opt. Lett., 2006, 31(11): 1603~1605
[4] A. Martinez, M. Dubov, I. Khrushchev et al.. Direct writing of fibre Bragg gratings by femtosecond laser[J]. Electron. Lett., 2004, 40(19): 1765~1766
[5] Kaiming Zhou, Mykhaylo Dubov, Chengbo Mou et al.. Line-by-line fiber Bragg grating made by femtosecond laser[J]. IEEE Photon. Technol. Lett., 2010, 22(16): 1190~1192
[6] Zhang Ling, Miao Fei, Feng Dejun et al.. Exposure experiment study of fiber Bragg grating by femtosecond laser[J]. Chinese J. Lasers, 2011, 38(5): 0505006
[10] G. D. Marshall, R. J. Williams, N. Jovanovic et al.. Point-by-point written fiber Bragg gratings and their application in complex grating designs[J]. Opt. Express, 2010, 18(19): 19844~19859
[13] Fan Yuanyuan, Zhou Jun, He Bing et al.. Preparation and high-power fiber laser experimentation of double-clad fiber grating[J]. Chinese J. Lasers, 2010, 37(9): 2395~2399
[14] J. Thomas, E. Wikszak, T. Clausnitzer et al.. Inscription of fiber Bragg gratings with femtosecond pulses using a phase mask scanning technique[J]. Appl. Phys. A, 2007, 86(2): 153~157
[15] He Fei, Liao Yang, Cheng Ya. Fabrication and integration of three-dimensional micro/nano- structures inside dielectric materials using femtosecond laser direct writing[J]. Progress in Physics, 2012, 32(2): 98~112
[16] An Liansheng, Li Lin, Li Quanchen. Applied Optics(3rd ed.)[M]. Beijing: Beijing Institute of Technology Press, 2007. 43~46