Investigations of gain redshift in high peak power Ti:sapphire laser systems

被引：6

作者：

Wu, Fenxiang ^{[1
,2
,3
]}

Yu, Linpeng ^{[1
,2
,3
]}

Zhang, Zongxin ^{[1
]}

Li, Wenkai ^{[1
]}

Yang, Xiaojun ^{[1
]}

Wu, Yuanfeng ^{[1
]}

Li, Shuai ^{[1
,2
,3
]}

Wang, Cheng ^{[1
]}

Liu, Yanqi ^{[1
]}

Lu, Xiaoming ^{[1
]}

Xu, Yi ^{[1
]}

Leng, Yuxin ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Shanghai Jiao Tong Univ, CICIFSA, Shanghai 200240, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2018年 / 103卷

基金：

中国国家自然科学基金;

关键词：

Ultrafast lasers; Laser amplifiers; Spectroscopy; Saturation; Lasers; Titanium; CHIRPED-PULSE-AMPLIFICATION; TI-SAPPHIRE LASER; HIGH-INTENSITY LASER; HIGH-CONTRAST; ULTRA-SHORT; AMPLIFIERS; GENERATION; DESIGN; DISPERSION; FILTER;

D O I：

10.1016/j.optlastec.2018.01.033

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Gain redshift in high peak power Ti:sapphire laser systems can result in narrowband spectral output and hence lengthen the compressed pulse duration. In order to realize broadband spectral output in 10 PW-class Ti:sapphire lasers, the influence on gain redshift induced by spectral pre-shaping, gain distribution of cascaded amplifiers and Extraction During Pumping (EDP) technique have been investigated. The theoretical and experimental results show that the redshift of output spectrum is sensitive to the spectral pre-shaping and the gain distribution of cascaded amplifiers, while insensitive to the pumping scheme with or without EDP. Moreover, the output spectrum from our future 10 PW Ti:sapphire laser is theoretically analyzed based on the investigations above, which indicates that a Fourier-transform limited (FTL) pulse duration of 21 fs can be achieved just by optimizing the spectral pre-shaping and gain distribution in 10 PW-class Ti:sapphire lasers. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：177 / 181

页数：5

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