Liang Xiaoyan, Leng Yuxin, Wang Cheng, Li Chuang, Lin Lihuang, Zhao Baozhen, Jiang Yunhua, Lu Xiaoming, Hu Minyuan, Zhang Chunmei, Lu Haihe, Yin Dingjun, Jiang Yongliang, Lu Xingqiang, Wei Hui, Zhu Jianqiang, Li Ruxin, Xu Zhizhan
Opt Express. 2007 Nov 12;15(23):15335-41. doi: 10.1364/oe.15.015335.
New parasitic lasing suppression techniques are developed and high gain amplification is demonstrated in a petawatt level Ti:sapphire amplifier based on the chirped pulse amplification (CPA) scheme. Cladding the large aperture Ti:sapphire with refractive-index matched liquid doped with absorber suppresses the transverse lasing. The acousto-optic programmable dispersive filter (AOPDF) is used to realize side-lobe suppression in the temporal profile of the compressed pulse. The 800 nm laser output with peak power of 0.89 PW and pulse width of 29.0 fs is demonstrated.
开发了新的寄生激光抑制技术，并在基于啁啾脉冲放大（CPA）方案的拍瓦级钛宝石放大器中实现了高增益放大。用掺杂有吸收剂的折射率匹配液体包覆大孔径钛宝石可抑制横向激光。声光可编程色散滤波器（AOPDF）用于在压缩脉冲的时间轮廓中实现旁瓣抑制。展示了峰值功率为0.89拍瓦、脉冲宽度为29.0飞秒的800纳米激光输出。
