[1] [1] H. A. Haus, E. P. Ippen, K. Tamura. Additive-pulse modelocking in fiber lasers[J]. IEEE J. Quantum Electron., 1994, 30 (1): 200～208

[2] [2] Gan Yu, Xiang Wanghua, Zhou Xiaofang et al.. Passive Q-switching and modelocking Yb3+ -doped fiber laser[J]. Chinese J .Lasers, 2006, 33 (8): 1021～1024

[3] [3] Ma Haiquan, Liu Chang, Zhao Wei et al.. Figure-of-eight cavity Yb3+ -doped fiber mode-locked lasers[J]. Chinese J. Lasers, 2005, 32 (9): 1173～1177

[4] [4] Song Fang, Xu Wencheng, Chen Weicheng et al.. 78 fs passively mode-locked Er3+-doped fiber ring laser[J]. Chinese J .Lasers, 2007, 34 (9): 1174～1177

[5] [5] 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 (3): 1080～1082

[6] [6] L. M. Zhao, D. Y. Tang, J. Wu. Gain-guided soliton in a positive group-dispersion fiber laser[J]. Opt. Lett., 2006, 31(12): 1788～1790

[7] [7] Gao Weiqing, Zheng Huan, Xu Lixin et al.. Multiple-pulse operation in passively mode-locked fibre laser with positive dispersion cavity[J]. Chinese Physics Letters, 2007, 24(5): 1267～1269

[8] [8] H. A. Haus, J. G. Fujimoto, E. P. Ippen. Analytic theory of additive pulse and Kerr lens mode locking[J]. IEEE J. Quantum Electron., 1992, 28 (10): 2086～2096

[9] [9] H. A. Haus, J. G. Fujimoto, E. P. Ippen. Structures for additive pulse mode locking[J]. J. Opt. Soc. Am. B, 1991, 8(10): 2068～2076

[10] [10] W. S. Man, H. Y.Tam, M. S. Demokan et al.. Soliton shaping of dispersive waves in a passively mode-locked fibre soliton ring laser[J]. Optical and Quantum Electronics, 2001, 33: 1139～1147

[11] [11] G. P. Agrawal. Nonlinear Fiber Optics[M]. Third Edition. Singapore: Elsevier (Singapore) Pte Ltd., 2005. 203～210

[12] [12] D. Y. Tang, L. M. Zhao, B. Zhao et al.. Mechanism of multisoliton formation and soliton energy quantization in passively mode-locked fiber lasers[J]. Phys. Rev. A, 2005, 72 :043816