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

[2] [2] L. E. Nelson, D. J. Jones, K. Tamura et al.. Ultrashort-pulse fiber ring lasers [J]. Appl. Phys. B, 1997, 65(2):277～294

[3] [3] M. Leitner,P. Glas, T. Sandrock et al.. Self-starting mode locking of a Nd∶glass fiber laser by use of the third-order nonlinearity of low-temperature-grown GaAs [J]. Opt. Lett., 1999, 24(22):1567～1569

[4] [4] H. Lim, F. . Ilday, F. W. Wise. Generation of 2-nJ pulses from a femtosecond ytterbium fiber laser [J]. Opt. Lett., 2003, 28(8):660～662

[5] [5] D. Nickel, A. Liem, J. Limpert et al.. Fiber based high repetition rate,high energy laser source applying chirped pulse amplification [J]. Opt. Commun., 2001, 190(1-6):309～315

[9] [9] Ammar Hideur, Thierry Chartier, Cafer Ozkul et al.. Dynamics and stabilization of a high power side-pumped Yb-doped double-clad fiber laser [J]. Opt. Commun., 2000, 186(4-6):311～317

[10] [10] Ammar Hideur, Thierry Chartier, Marc Brunel et al.. Mode-lock, Q-switch and CW operation of an Yb-doped double-clad fiber ring laser [J]. Opt. Commun., 2001, 198(1-3):141～146

[11] [11] Shumin Zhang, Fuyun Lu, Chunxia Xie et al.. Temporal characteristics of a high-energy Er/Yb-codoped fibre ring laser [J]. J. Opt. A: Pure Appl. Opt., 2005, 7(4):175～178

[12] [12] M. Nakazawa, K. Suzuki, H. Kubota et al.. Self-Q-switching and mode locking in a 1.53 μm fiber ring laser with saturable absorption in erbium-doped fiber at 4.2 K [J]. Opt. Lett., 1993, 18(8):613～615