Megawatt-peak-power picosecond all-fiber-based laser in MOPA using highly Yb3+-doped LMA phosphate fiber
Megawatt-peak-power picosecond all-fiber-based laser in MOPA using highly Yb3+-doped LMA phosphate fiber
复制标题
MOPA 中使用高掺 Yb3 LMA 磷酸盐光纤的兆瓦峰值功率皮秒全光纤激光器
DOI：
10.1016/j.optcom.2017.11.026
复制
发表时间：
2018-03-15
影响因子：
2.4
通讯作者：
Yao, Jianquan
中科院分区：
文献类型：
--
作者：
Shi, Guannan;Fu, Shijie;Yao, Jianquan
实验证明了在主振荡器功率放大器（MOPA）中实现兆瓦峰值功率皮秒全光纤激光器。放大阶段的增益光纤仅采用34 cm长的高掺Yb3+的大模面积（LMA）磷酸光纤，以缓解非线性，实现较高的峰值功率。在500 kHz的重复频率下，实现了单脉冲能量为21.2 μ J、峰值功率为0.96 MW的皮秒脉冲。当峰值功率接近1 MW时，可以观察到明显的光谱退化，实验获得了0.51 MW的受激拉曼散射（SRS）自由峰值功率。并对不同重复频率下的输出功率进行了研究。(C) 2017 Elsevier B.V.版权所有
A megawatt-peak-power picosecond all-fiber-based laser in master oscillator power amplifier (MOPA) is experimentally demonstrated. Only 34-cm-long highly Yb3+-doped large mode area (LMA) phosphate fiber was used as the gain fiber in the amplification stage to alleviate nonlinearity and achieve high peak power. Picosecond pulses with single pulse energy of 21.2 mu J and peak power of 0.96 MW were achieved at the repetition rate of 500 kHz. Evident spectral degradation can be observed as the peak power approached 1 MW, and a stimulated Raman scattering (SRS) free peak power of 0.51 MW was obtained in the experiment. Moreover, the output power under different repetition rates was investigated. (C) 2017 Elsevier B.V. All rights reserved.