Single-polarization large-mode-area fiber laser mode-locked with a nonlinear amplifying loop mirror
Single-polarization large-mode-area fiber laser mode-locked with a nonlinear amplifying loop mirror
复制标题
非线性放大环镜锁模单偏振大模场光纤激光器
DOI：
10.1364/ol.43.002848
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发表时间：
2018-06-15
期刊：
影响因子：
3.6
通讯作者：
Hu, Minglie
中科院分区：
文献类型：
--
作者：
Liu, Wu;Shi, Haosen;Hu, Minglie
据报道，基于单偏振大模面积（LMA）光子晶体光纤与非线性放大环镜设计的组合，被动锁模光纤激光器产生高功率超短脉冲。在环镜中引入不可逆相移可以实现锁模激光器的自启动，而偏振LMA光纤则支持环境稳定的高功率运行。表征了类孤子、拉伸脉冲和全正态色散状态下的锁模。该激光器在 72 MHz 重复频率下产生平均功率高达 2 W 的稳定脉冲，相当于 28 nJ 的单脉冲能量。输出脉冲被去线性调频至接近变换限制的 152 fs 持续时间。所提出的光纤振荡器提供了一种高功率超快激光源的替代方法以及环境稳定性。 (C) 2018年美国光学学会
The generation of high-power ultrashort pulses from a passively mode-locked fiber laser is reported based on the combination of a single-polarization large-mode-area (LMA) photonic crystal fiber with a nonlinear amplifying loop mirror design. The introduction of a non-reciprocal phase shift in the loop mirror enables self-starting of the mode-locked laser, while the polarizing LMA fiber supports environmentally stable high-power operation. Mode locking in the soliton-like, stretched-pulse, and all-normal-dispersion regime is characterized. The laser generates stable pulses with up to 2 W average power at a 72 MHz repetition rate, corresponding to a single-pulse energy of 28 nJ. The output pulses are dechirped to a near transform-limited duration of 152 fs. The proposed fiber oscillator presents an alternative approach to high-power ultrafast laser sources, along with environmental stability. (C) 2018 Optical Society of America