基于石墨烯可饱和吸收的锁模光纤激光器研究

摘要

An all-polarization-maintaining erbium-doped Q-switched mode-locked fiber laser by graphene saturable absorber mirror was reported.The characteristics of Q-switched mode-locked laser with monolayer graphene as saturable absorber were studied,and the laser output was obtained at the center wavelength of 1557.69 nm.Repetition rate of Q-switched envelope varied from 11.49 to 40.41 kHz,and the width of Q-switched envelope varied from 10.1 to 3.62 μs.When the incident pump power is 191.3 mW,the maximum average output power of the laser is 9.354 mW and the maximum light-light conversion efficiency is 4.89 ％.%报道了一种基于单层石墨烯可饱和吸收体调Q锁模的全保偏结构掺铒光纤激光器.研究了单层石墨烯作为可饱和吸收体实现调Q锁模后的激光特征,获得了中心波长1557.69 nm的激光输出.调Q锁模脉冲包络重复频率11.49 ～ 40.41 kHz范围变化,包络宽度在10.1 ～3.62 μs范围变化.在泵浦功率为191.3 mW时,激光器最大输出平均功率9.354 mW,最大光-光转换效率为4.89％.