Author:
Shang Jingcheng,Zhao Shengzhi,Liu Yizhou,Yang Kejian,Wang Chun,Li Tao,Feng Tianli
Abstract
Abstract
We investigate the spectrum smoothing effect of the amplified soliton pulse in an ultrafast Tm-doped fiber chirped pulse amplifier, in which the soliton pulse is amplified to 7.3 W with a pulse duration of ∼350 fs. The experimental investigation reveals that the spectrum smoothing effect arises from the polarization filtering effect of the grating-based pulse compressor, which is further confirmed by a theoretical simulation. This effect not only smooths the amplified laser spectrum, but also improves the pulse contrast ratio.
Funder
Natural Science Foundation of Shandong Province
Qilu Young Scholar Program of Shandong University
High-level Talent Cultivation Funds of State Key Laboratory of Crystal Materials of Shandong University
Taishan Scholar Foundation of Shandong Province
National Natural Science Foundation of China
Subject
General Physics and Astronomy,General Engineering