Parasitic lasing suppression in high gain femtosecond petawatt Ti:sapphire amplifier.
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.
Liang
Xiaoyan
X
Leng
Yuxin
Y
Wang
Cheng
C
Li
Chuang
C
Lin
Lihuang
L
Zhao
Baozhen
B
Jiang
Yunhua
Y
Lu
Xiaoming
X
Hu
Minyuan
M
Zhang
Chunmei
C
Lu
Haihe
H
Yin
Dingjun
D
Jiang
Yongliang
Y
Lu
Xingqiang
X
Wei
Hui
H
Zhu
Jianqiang
J
Li
Ruxin
R
Xu
Zhizhan
Z