中国激光, 2012, 39 (11): 1102003, 网络出版: 2012-09-26
利用快速相位反馈控制输出变换极限飞秒激光脉冲
Fast Close-Loop Phase Control to Output Transform-Limited Femtosecond Laser Pulses
激光光学 简化的频率分辨光学开关 啁啾补偿 液晶空间光调制器 非线性光纤放大器 飞秒激光 laser optics simplified frequency-resolved optical gating chirp compensation liquid crystal spatial light modulator nonlinear fiber amplifier femtosecond laser
摘要
报道了利用简化的频率分辨光学开关法快速测量飞秒激光脉冲,并形成反馈,控制液晶空间光调制器,补偿非线性光纤飞秒激光放大器输出脉冲的啁啾,获得了脉冲宽度74 fs的变换极限脉冲。
Abstract
A close-loop chirp compensation system which consists of a simplified frequency-resolved optical gating (FROG) device and liquid crystal spatial light modulator (LC-SLM) is demonstrated. Femtosecond laser pusles are measured by using simplified frequency-resolved optical grating. The phase feedback signals derived from the simplified FROG control the LC-SLM to compensate the chirp of pulses. As a result, 74-fs transform-limited pulses are obtained from nonlinear fiber femtosecond laser amplifier.
钱程, 王思佳, 顾澄琳, 张丽梦, 刘博文, 庞冬青, 胡明列, 柴路, 王清月. 利用快速相位反馈控制输出变换极限飞秒激光脉冲[J]. 中国激光, 2012, 39(11): 1102003. Qian Cheng, Wang Sijia, Gu Chenglin, Zhang Limeng, Liu Bowen, Pang Dongqing, Hu Minglie, Chai Lu, Wang Qingyue. Fast Close-Loop Phase Control to Output Transform-Limited Femtosecond Laser Pulses[J]. Chinese Journal of Lasers, 2012, 39(11): 1102003.