Passive mode-locked fiber ring laser

In this paper, simulation of a classical passive mode-locked fiber ring laser model is given first to investigate the variation of the output parameters with different dispersion and nonlinear effects. After it, an experiment based on Carbon Nanotube (CNT) saturable absorber is carried out with a newly-developed device integrating multiple functions. By substantially simplifying the cavity with this component, pulses with a fundamental repetition frequency of 180MHz and temporal duration of 500 femtosecond (5×10
^-13
) are finally generated.