中国激光, 2012, 39 (s1): s102007, 网络出版: 2012-05-28
低重复频率全正色散脉冲光纤激光器的三种锁模状态
Three Mode-Locking States in All-Normal-Dispersion Fiber Laser at Low Repetition
光纤光学 全正色散光纤激光器 半导体可饱和吸收镜 掺镱光纤激光器 偏振 fiber optics all normal dispersion fiber laser semiconductor saturable absorber mirror ytterbium-doped fiber laser polarization
摘要
研究了一种基于半导体可饱和吸收镜（SESAM）锁模的线性腔掺镱光纤激光器，其工作在全正色散区域。实验中通过调节偏振控制器和抽运功率，观察到三种不同的锁模状态。除了相同的重复频率（基频435.6 kHz），三种锁模状态的光谱、脉冲形状以及随抽运功率变化的演化过程均具有较大差异，其中状态一具有对称加宽的类高斯形光谱；状态二具有非对称加宽的平顶光谱；状态三的脉冲宽度随抽运功率增加急剧增大，脉冲特性类似于耗散孤子，但光谱与之不同。
Abstract
An all-normal-dispersion ytterbium-doped linear-cavity fiber laser mode-locked by a semiconductor saturable absorber mirror (SESAM) is reported. Without anomalous dispersion part, output pulses are highly-chirped and fundamental repetition rate is 435.6 kHz. Three mode-locking states are observed by adjusting polarization controller and pump power. Characters of these states, such as spectrum, pulse shape and stability, are analyzed in control experiments.
刘诗尧, 陈胜平, 宋锐, 刘通, 侯静. 低重复频率全正色散脉冲光纤激光器的三种锁模状态[J]. 中国激光, 2012, 39(s1): s102007. Liu Shiyao, Chen Shengping, Song Rui, Liu Tong, Hou Jing. Three Mode-Locking States in All-Normal-Dispersion Fiber Laser at Low Repetition[J]. Chinese Journal of Lasers, 2012, 39(s1): s102007.
PDF全文
