Parasitic lasing suppression in large-aperture Ti:sapphire amplifiers by optimizing the seed-pump time delay

被引：11
|
作者：
Chu, Y. X. [1 ]
Liang, X. Y. [1 ]
Yu, L. H. [1 ]
Xu, L. [1 ]
Lu, X. M. [1 ]
Liu, Y. Q. [1 ]
Leng, Y. X. [1 ]
Li, R. X. [1 ]
Xu, Z. Z. [1 ]
机构：
[1] Chinese Acad Sci, State Key Lab High Field Laser Phys, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
来源：
LASER PHYSICS LETTERS | 2013年 / 10卷 / 05期
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
CHIRPED-PULSE AMPLIFICATION; SAPPHIRE LASER SYSTEM; HIGH-CONTRAST;
D O I：
10.1088/1612-2011/10/5/055302
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Theoretical and experimental investigations are carried out to determine the influence of the time delay between the input seed pulse and pump pulses on transverse parasitic lasing in a Ti:sapphire amplifier with a diameter of 80 mm, which is clad by a refractive index-matched liquid doped with an absorber. When the time delay is optimized, a maximum output energy of 50.8 J is achieved at a pump energy of 105 J, which corresponds to a conversion efficiency of 47.5%. Based on the existing compressor, the laser system achieves a peak power of 1.26 PW with a 29.0 fs pulse duration.
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页数：7
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