[1] [1] Ghera U, Friedman N, Tur M. A fiber laser with a comb-like spectrum. IEEE Photon. Technol. Lett., 1993, 5(10):1159～1161

[2] [2] Chow J, Town G, Eggleton B et al.. Multiwavelength generation in an Erbium-doped fiber laser using in-fiber comb filters. IEEE Photon. Technol. Lett., 1996, 8(1):60～62

[3] [3] Ainslie B J, Craig S P, Davey S T. The absorption and fluorescence spectra of rare earth ions in silica-based monomode fiber. J. Lightwave Technol., 1988, 6(2):287～293

[4] [4] De Douza K, Lees F P, Wait P C et al.. Diode-pumped Landau-Placzek based distributed temperature sensor utilizing an all-fiber Mach-Zehnder interferometer. Electron. Lett., 1996, 32(23):2174～2175

[5] [5] Desurvire E, Zyskind J L, Simpson J R. Spectral gain hole-burning at 1530 nm in erbium-doped fiber amplifiers. Photon. Technol. Lett., 1990, 2(4):246～248

[6] [6] Goldstein E L, Eskidsen L, Da Silva V et al.. Suppression of dynamic cress-saturation in multiwavelength lightwave networks with inhomogeneously broadened amplifiers. IEEE Photon. Technol. Lett., 1993, 5(8):937～939