[1] [1] H. Takara, S. Kawanishi, M. Saruwatari et al.. Generation of highly stable 20 GHz transform-limited optical pulses from actively mode-locked Er3+-doped fibre lasers with an all-polarization maintaining ring cavity. Electron. Lett., 1992, 28(22): 2095~2096

[2] [2] C. R. óCochlain, R. J. Mears. Broadband tunable single frequency diode-pumped erbium doped fibre laser. Electron. Lett., 1992, 28(2): 124~126

[3] [3] N. Kishi, J. N. Carter, R. Mottahedeh et al.. Actively mode-locked and passively Q- switched operation of thulium-doped fibre laser using multiquantum well asymmetric Fabry-Perot modulator. Electron. Lett., 1992, 28(2): 175~177

[4] [4] Wang-Yuhl Oh., B. Y. Kim, Hai-woong Lee. Passive mode locking of a Neodymium-doped fiber laser with a nonlinear optical loop mirror. IEEE J. Quantum Electron., 1996, 32(2): 333~339