[1] [1] Chen Guojie, Huang Dexiu, Zhang Xinliang et al.. Dual-wavelength erbium-doped fiber ring laser by cascading tunable bandpass filter with bandstop filter[J].Chin. Phys. Lett., 2007, 24(11): 3145～3148

[2] [2] T. Taniuchi, S. Okada, H. Nakanishi. Widely-tunable THz-wave generation in 2～20 THz range from DAST crystal by nonliner difference frequency mixing[J]. Electron. Lett., 2004, 40(1): 60～62

[3] [3] E. Desurvire, J. L. Zysking, J. R. Simpson. Spectral gain hole burning at 1.53 μm erbium-doped fiber amplifies[J]. IEEE Photon. Technol. Lett., 1990, 2(4): 246～248

[4] [4] A. Bellemare, M. Karasek, M. Rochette et al.. Room-temperature multifrequency erbium-doped fiber lasers anchored ITU the frequency grid[J]. J. Lightwave Technol., 2000, 18(6): 825～830

[5] [5] Q. Mao, John W. Y. Lit. Multiieswavelength erbium-doped fiber lasers with active overlapping linear cavities[J]. J. Lightwave Technol., 2003, 21(1): 160～169

[6] [6] Ji Heng, Yang Sigang, Zhang Ye et al.. Dual-wavelength Er-doped fiber laser based on phase sampled fiber Bragg grating[J]. Acta Optica Sinica, 2008, 28(5): 919～922

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

[8] [8] X. H. Feng, Y. Liu, S. Z. Yang et al.. L-band switchable dual-wavelength erbium-doped fiber laser based on a multimode fiber Bragg grating[J]. Opt. Exp., 2004, 12(16): 3834～3839

[9] [9] J. Sun, J. Qiu, D. Huang. Multiwavelength erbium-doped fiber lasers exploiting polarization hole burning[J]. Opt. Commun., 2000, 182(1～3): 193～197

[10] [10] C. L. Zhao, X. Yang, J. H. Ng et al.. Switchable dual-wavelength erbium-doped fiber-ring lasers using a fiber Bragg grating in high-birefringence fiber[J]. Microwave Opt. Technol. Lett., 2004, 41(1): 73～75

[11] [11] 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): 762～765