[2] [2] Zhaoying Wang, Zhenhong Yu, Chunfeng Ge et al.. Figure-eight actively-passively mode-locked erbium-doped fiber laser[J]. Chin. Opt. Lett., 2003, 1(3): 128～130

[4] [4] V. J. Matsas, T. P. Newson, D. J. Richardson et al.. Selfstarting passively mode-locked fiber ring soliton laser exploiting nonlinear polarization rotation[J]. Electron. Lett., 1992, 28(15): 1391～1393

[5] [5] K. Tamura, H. A. Haus, E. P. Ippen. Self-starting additive pulse mode-locked erbium fiber ring laser[J].Electron. Lett.,1992, 28(24): 2226～2228

[6] [6] K. Tamura, E. P. Ippen, H. A. Haus et al.. 77-fs pulse generation from a stretched-pulse mode-locked all-fiber ring laser[J]. Opt. Lett., 1993, 18(13): 1080～1082

[7] [7] Axel Ruehl, Holger Hundertmark, Dieter Wandt et al.. 0.7 W all-fiber erbium oscillator generating 64 fs wave breaking-free pulses[J]. Opt. Express, 2005, 13(16): 6305～6309

[11] [11] R. H. Stolen, J. Botineau, A. Ashkin. Intensity discrimination of optical pulses with birefringent fibers[J]. Opt. Lett., 1982, 7(10): 512～514

[12] [12] R. H. Stolen, J. Botineau, A. Ashkin. Intensity discrimination of optical pulses with birefringent fibers[J]. Opt. Lett., 1982, 7(10): 512～514

[13] [13] M. Horowitz, Y. Barad, Y. Silberberg. Noiselike pulses with a broadband spectrum generated from an erbium-doped fiber laser[J]. Opt. Lett., 1997, 22(11): 799～781

[14] [14] S. M. J. Kelly. Characteristic sideband instability of periodically amplified average soliton[J]. Electron. Lett., 1992, 28(8): 806～807