[1] [1] B. C. Hwang, S. Jiang, T. Luo et al.. Performance of high-concentration Er3+-doped phosphate fiber amplifiers[J]. IEEE Photon. Technol. Lett., 2001, 13(3): 197～199

[2] [2] Dong Qinglei, Zhang Liyan, Hu Lili. Crystalization stability and spectral properties of Yb3+-doped alkaline metal modified fluorophosphates glasses[J]. Acta Optica Sinica, 2008, 28(12): 2383～2387

[3] [3] S. H. Scott, Y. Akasaka, Y. Kubota et al.. Transient dynamics of fluoride-based high concentration erbium-cerium codoped fiber amplifier[J]. IEEE Photon. Technol. Lett., 2004, 16(2): 425～427

[4] [4] A. Mori, K. Kobayashi, M. Yamada et al.. Low noise broadband tellurite-based Er3+-doped fibre amplifiers[J]. Eletron. Lett., 1998, 34(9): 887～888

[5] [5] Chen Bingyan, Liu Yuehui, Chen Dongdan et al.. Spectroscopic properties of new erbium-doped tellurite glass[J]. Acta Physica Sinics, 2005, 54(5): 2374～2378

[6] [6] Zhou Yaxun, Wang Jun, Dai Shixun et al.. Effect of Yb3+ on infrared and upconversion emission of Er3+-doped tellurite-based glasses[J]. Chinese J. Lasers, 2007, 34(12): 1688～1693

[7] [7] Yang Jianhu, Dai Shixun, Wen Lei et al.. Spectroscopic properties and thermal stability of a new erbium-doped bismuth-based glass[J]. Acta Physica Sinica, 2003, 52(2): 508～514

[8] [8] Zhou Yaxun, Gai Na, Chen Fen et al.. Comparative investigation on amplifying performance between 980 nm and 1480 nm pumped bismuth-based EDFA[J]. Chinese J. Lasers, 2009, 36(3): 558～563

[9] [9] Guillaume G. Vienne, Julie E. Caplen, Liang Dong et al.. Fabrication and characterization of Yb3+: Er3+ phosphosilicate fibers for lasers[J]. J. Lightwave Technol., 1998, 16(11): 1990～2001

[10] [10] Gao Yaming, Feng Guang, Liu Yongjian et al.. Manufacture of erbium-doped optical fiber[J]. Infrared and Laser Engineering, 2009, 38(3): 515～519

[11] [11] K. Chida, F. Hanawa, M. Nakahara. Fabrication of OH-free multimode fiber by vapor phase axial deposition[J]. IEEE J. Quantum Electron., 1982, QE-18(11): 1883～1889

[12] [12] Yi Yongqing, Tian Haisheng, Ning Ding. Study of the influence of the deposition temperature by using the MCVD technique on the rare earth ion concentration of active fiber[J]. Optical Communication Technology, 2007, 31(1): 60～61

[13] [13] C. R. Giles, E. Desurvire. Modeling erbium-doped fiber amplifiers[J]. J. Lightwave Technol., 1991, 9(2): 271～283

[14] [14] Chen Genxiang. The Basis of Lightwave Technology[M]. Beijing: China Railway Publishing House, 2004. 30～42

[15] [15] S. Tanabe, N. Sugimoto, S. Ito et al.. Broad-band 1.5 μm emission of Er3+ ions in bismuth-based oxide glasses for potential WDM amplifier[J]. Journal of Luminescence, 2000, 87-89: 670～672

[16] [16] H. Sotobayashi, J. T. Gopinath, E. P. Ippen. 23 cm long Bi2O3-based EDFA for picosecond pulse amplification with 80 nm gain bandwidth[J]. Electron. Lett., 2003, 39(19): 1374～1375

[17] [17] H. Hayashi, N. Sugimoto, S. Tanabe. High-performance and wideband amplifier using bismuth-oxide-based EDF with cascade configurations[J]. Optical Fiber Technology, 2006, 12(3): 282～287

[18] [18] Ning Tigang, Pei Li, Hu Xudong et al.. Dual-wavelength of single polarized fiber laser based on common active fiber[J]. Chinese J. Lasers, 2008, 35(12): 1868～1871

[19] [19] Li Jian, Liu Peng, Wang Jing et al.. Experiment study on a tunable fiber laser using optical circulator and tunable fiber Bragg gratings[J]. Chinese J. Lasers, 2009, 36(5): 1047～1050