[1] [1] Y. Yao, X. Chen, Y. Dai et al.. Dual-wavelength erbium-doped fiber laser with a simple linear cavity and its application in microwave generation [J]. IEEE Photon. Technol. Lett., 2006, 18(1): 187～189

[2] [2] X. Chen, J. Yao, Z. Deng. Ultranarrow dual-transmission-band fiber Bragg grating filter and its application in a dual-wavelength single-longitudinal-mode fiber ring laser [J]. Opt. Lett., 2005, 30(16): 2068～2070

[3] [3] Young Geun Han, Ju Han Lee, Sang Bae Lee et al.. Novel multiwavelength erbium-doped fiber and Raman fiber ring lasers with continuous wavelength spacing tunability at room temperature [J]. J. Lightwave Technol., 2007, 25(8): 2219～2225

[4] [4] Y. Liu, X. Dong, P. Shum et al.. Stable room-temperature multi-wavelength lasing realization in ordinary erbium-doped fiber loop lasers [J]. Opt. Express., 2006, 14(20): 9293～9298

[5] [5] X. Feng, Y. Liu, S. Fu et al.. Switchable dual-wavelength ytterbium-doped fiber laser based on a few-mode fiber grating [J]. IEEE Photon. Technol. Lett., 2004, 16(3): 762～764

[6] [6] Liu Yange, Feng Xinhuan, Dong Xiaoyi. Progress in room-temperature stable multi-wavelength fiber laser technologies [J]. Chinese J. Lasers, 2007, 34(7): 883～894

[7] [7] Sun Guoyong, Qu Ronghui, Yang Jing et al.. Study on stable multi-wavelength erbium-doped fiber laser at room temperature [J]. Acta Optica Sinica, 2005, 25(6): 821～824

[8] [8] Li Shule, Shao Jiafeng, Shen Qishun et al.. Multiwavelength fiber ring laser with selectable grid spacing [J]. Acta Optica Sinica, 2007, 27(10): 1802～1806

[9] [9] Zhang Zuxing,Sang Minghuang,Ye Zhiqing et al.. Multiwavelength fiber laser based on nonlinear polarization rotation [J]. Acta Optica Sinica, 2008, 28(4): 648～652

[10] [10] D. Liu, N. Q. Ngo, S. C. Tjin et al.. A dual-wavelength fiber laser sensor system for measurement of temperature and strain [J]. IEEE Photon. Technol. Lett., 2007, 19(15): 1148～1150

[11] [11] C. L. Zhao, X. Yang, C. Lu et al.. Switchable multi-wavelength erbium-doped fiber lasers by using cascaded fiber Bragg gratings written in high birefringence fiber [J]. Opt. Commun., 2004, 230(4): 313～317

[12] [12] Y. G. Liu, X. Feng, S. Yuan et al.. Simultaneous four-wavelength lasing oscillations in an erbium-doped fiber laser with two high birefringence fiber Bragg gratings [J]. Opt. Express, 2004, 12(10): 2056～2061

[13] [13] W. Guan, J. R. Marciante. Dual-frequency operation in a short-cavity ytterbium-doped fiber laser [J]. IEEE Photon. Technol. Lett., 2007, 19(5): 261～263

[14] [14] L. Sun, X. Feng, W. Zhang et al.. Beating frequency tunable dual-wavelength erbium-doped fiber laser with one fiber Bragg grating [J]. IEEE Photon. Technol. Lett., 2004, 16(6): 1453～1455

[15] [15] Li Rao, Feng Xinhuan, Sun Lei et al.. Dual-wavelength fiber laser based on polarisation hole-burning effect at room temperature [J]. Acta Photonica Sinica, 2005, 34(2): 173～175