Sun Ruoyu, Jin Dongchen, Tan Fangzhou, Wei Shouyu, Hong Chang, Xu Jia, Liu Jiang, Wang Pu
Opt Express. 2016 Oct 3;24(20):22806-22812. doi: 10.1364/OE.24.022806.
We report a high-power all-fiber-integrated femtosecond chirped pulse amplification system operating at 1064 nm, which consists of a dispersive wave source, a fiber stretcher, a series of ytterbium-doped amplifiers and a chirped volume Bragg grating (CVBG) compressor. The dispersive wave is generated by an erbium-doped mode-locked fiber laser with frequency shifted to the 1 μm region in a highly nonlinear fiber. With three stages of ytterbium-doped amplification, the average output power is scaled up to 125 W. Through CVBG, the pulse duration is compressed from 525 ps to 566 fs, the average output power of 107 W with a high compression efficiency of 86% is achieved, and the measured repetition rate is 17.57 MHz, corresponding to the peak power of 10.8 MW.
我们报道了一种工作在1064 nm的高功率全光纤集成飞秒啁啾脉冲放大系统，该系统由一个色散波源、一个光纤展宽器、一系列掺镱放大器和一个啁啾体布拉格光栅（CVBG）压缩器组成。色散波由一个掺铒锁模光纤激光器产生，其频率在一根高非线性光纤中被移至1μm波段。经过三级掺镱放大，平均输出功率提升至125 W。通过CVBG，脉冲持续时间从525 ps压缩至566 fs，实现了107 W的平均输出功率以及86%的高压缩效率，测得的重复频率为17.57 MHz，对应峰值功率为10.8 MW。
