[1] Rochette M, Guy M, LaRochelle S. Gain equalization of EDFA′s with Bragg gratings[J]. IEEE Photon. Technol. Lett., 1999, 11(5)
[2] Liaw S K, Ho K P, Chi S. Dynamic power-equalized EDFA module based on strain tunable fiber Bragg gratings[J]. IEEE Photon. Technol. Lett., 1999, 11(7): 797~799
[3] Wysocki P F, Judkins J B, Espindola R P. Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating filter[J]. IEEE Photon. Technol. Lett., 1997, 9(10): 1343~1345
[4] Pandit M K, Chiang K S, Chen Z H. Tunable long-period fiber gratings for EDFA gain and ASE equalization[J]. Microwave and Opt. Technol. Lett., 2000, 25(3): 181~184
[6] Vengsarkar A M, Lemaire P J, Judkins J B et al.. Long-period fiber gratings as band-rejection filters[J]. J. Lightware Technol., 1996, 14(1): 58~65
[8] Rao Y J, Wang Y P. Ran Z L et al.. Characteristics of novel long-period fibre gratings written by focused high-frequency CO2 laser pulses[C]. Proc. SPIE, 2001, 4581: 327~331
[9] Wang Y P, Rao Y J, Ran Z L et al.. Bend-insensitive long-period fiber grating sensors[C]. Opt. Lasers in Engng., 2003, 21(10): 233~239
[11] Rao Y J, Zhu T, Ran Z L et al.. An all-fibre dynamic gain equalizer based on a novel long-period fibre grating written by high-frequency CO2 laser pulses[J]. Chin. Phys. Lett., 2002, 19(12): 1822~1824
[12] Hyung S R, Park Y W, Oh S T et al.. Effect of asymmetric stress relaxation on the polarization-dependent transmission characteristics of a CO2 laser-written long-period fiber grating[J]. Opt. Lett., 2003, 28(3): 155~157