Investigation on the spectrum smoothing effect in an ultrafast Tm-doped fiber chirped pulse amplifier

被引：1
|
作者：
Shang, Jingcheng [1 ,2 ,3 ]
Zhao, Shengzhi [1 ,2 ,3 ]
Liu, Yizhou [1 ,2 ]
Yang, Kejian [4 ]
Wang, Chun [1 ,2 ]
Li, Tao [1 ,2 ,3 ]
Feng, Tianli [1 ,2 ,3 ]
机构：
[1] Sch Informat Sci & Engn, Shandong Prov Key Lab Laser Technol & Applicat, Qingdao 266237, Peoples R China
[2] Shandong Univ, Qingdao 266237, Peoples R China
[3] Shandong Univ, Minist Educ, China Key Lab Laser & Infrared Syst, Qingdao 266237, Peoples R China
[4] Shandong Univ, State Key Lab Crystal Mat, Inst Novel Semicond, Jinan 250100, Peoples R China
来源：
APPLIED PHYSICS EXPRESS | 2022年 / 15卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Tm-doped fiber chirped pulse amplifier; spectrum smoothing effect; polarization filtering effect; pulse contrast ratio; LASER SYSTEM; AMPLIFICATION; COMPRESSION; GENERATION; NJ;
D O I：
10.35848/1882-0786/ac7fdb
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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 similar to 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.
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页数：5
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