中国激光, 2014, 41 (2): 0202001, 网络出版: 2014-01-16
全光子晶体光纤单级直接放大产生34 W高功率飞秒脉冲 下载: 528次
Generation of 34 W High Power Femtosecond Pulses by Single-Stage Direct Amplification in an All-Photonic-Crystal-Fiber Laser System
光纤光学 飞秒激光放大 非线性放大 自相位调制 高功率 fiber optics femtosecond laser amplification nonlinear amplification self-phase modulation high-power
摘要
构建了全保偏双包层掺镱大模场面积光子晶体光纤(LMA-PCF)的单级飞秒激光直接放大系统。光子晶体光纤(PCF)振荡级采用孤子型锁模运转,放大级采用非线性放大技术。该系统获得的高功率飞秒脉冲输出平均功率为34 W,脉冲宽度约为50 fs,重复频率为42 MHz,对应脉冲能量为0.8 μJ,峰值功率为16.2 MW。
Abstract
A single-stage femtosecond laser direct amplification system with all polarization-maintaining, double-cladding, Yb-doped large-mode-area photonic crystal fiber (LMA-PCF) is constructed. The photonic crystal fiber (PCF) oscillator operates in soliton mode-locking regime, and the PCF amplifier is employed in nonlinear amplification. The all-PCF single-stage amplifier directly generates a high-average power of 34 W and a pulse width of 50 fs at the repetition rate of 42 MHz, corresponding to pulse energy of 0.8 μJ and peak power of 16.2 MW.
石俊凯, 柴路, 赵晓薇, 李江, 刘博文, 胡明列, 栗岩锋, 王清月. 全光子晶体光纤单级直接放大产生34 W高功率飞秒脉冲[J]. 中国激光, 2014, 41(2): 0202001. Shi Junkai, Chai Lu, Zhao Xiaowei, Li Jiang, Liu Bowen, Hu Minglie, Li Yanfeng, Wang Qingyue. Generation of 34 W High Power Femtosecond Pulses by Single-Stage Direct Amplification in an All-Photonic-Crystal-Fiber Laser System[J]. Chinese Journal of Lasers, 2014, 41(2): 0202001.