论文信息 - Repetition rate switching in a passively mode-locked fibre laser

Repetition rate switching in a passively mode-locked fibre laser

Here we demonstrated a dispersion stretched passively mode-locked fiber laser. The laser was mode-locked by nonlinear polarization rotation (NPR) technical. Both dispersion managed soliton and noise-like pulses were observed in the experiment. Harmonic mode-locked noise-like pulses were observed. By changing the pump power or rotating the waveplates, noise-like pulse could split and always form equally spaced pulse train, thus the repetition rate of the output pulse could be switched among different orders of harmonic frequency. The experiment results were analyzed. We found that peak power clamping caused by NPR module led to pulse splitting, the pulse interaction through the Raman light drives the pulse to space equally.

Ming Tang | Yandong Gong | P. Shum | X. L. Tian

[1] Y. Silberberg,et al. Noiselike pulses with a broadband spectrum generated from an erbium-doped fiber laser. , 1997, Optics letters.

[2] P. Holmes,et al. Mode-locking pulse dynamics in a fiber laser with a saturable Bragg reflector , 1997 .

[3] W. S. Man,et al. Regimes of operation states in passively mode-locked fiber soliton ring laser , 2004 .

[4] D. Y. Tang,et al. Generation of 15-nJ bunched noise-like pulses with 93-nm bandwidth in an erbium-doped fiber ring laser , 2006 .

[5] D. Richardson,et al. Energy quantisation in figure eight fibre laser , 1992 .

[6] Anatoly B. Grudinin,et al. Passive harmonic mode locking of soliton fiber lasers , 1995 .

[7] J. N. Kutz,et al. Stabilized pulse spacing in soliton lasers due to gain depletion and recovery , 1998 .

[8] C R Menyuk,et al. Acoustic effect in passively mode-locked fiber ring lasers. , 1995, Optics letters.

[9] F. Wise,et al. Self-similar evolution of parabolic pulses in a laser. , 2004, Physical review letters.

[10] Hermann A. Haus,et al. Stretched-Pulse Additive Pulse Mode-Locking in Fiber , 1994 .