High-energy, kHz-repetition-rate, ps cryogenic Yb:YAG chirped-pulse amplifier

被引：70
|
作者：
Hong, Kyung-Han [1 ,2 ]
Gopinath, Juliet T. [3 ]
Rand, Darren [3 ]
Siddiqui, Aleem M. [1 ,2 ]
Huang, Shu-Wei [1 ,2 ]
Li, Enbang [4 ]
Eggleton, Benjamin J. [4 ]
Hybl, John D. [3 ]
Fan, Tso Yee [3 ]
Kaertner, Franz X. [1 ,2 ]
机构：
[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA
[3] MIT, Lincoln Lab, Lexington, MA 02420 USA
[4] Univ Sydney, Sch Phys, Australian Res Council Ctr Excellence, Ctr Ultrahigh Bandwidth Devices Opt Syst, Sydney, NSW 2006, Australia
来源：
OPTICS LETTERS | 2010年 / 35卷 / 11期
关键词：
OPTICAL PARAMETRIC AMPLIFICATION; GENERATION; LASER;
D O I：
10.1364/OL.35.001752
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate amplification of picosecond laser pulses to 40 mJ at a 2 kHz pulse repetition frequency (PRF) from a two-stage cryogenic chirped-pulse Yb:YAG amplifier, composed of a regenerative amplifier (RGA) and a two-pass booster amplifier. The RGA produces 8.2 mJ of energy at 2 kHz PRF and 13.2 mJ at 1 kHz PRF with excellent energy stability (similar to 0.3% rms) and beam quality (M(2) < 1.1). Pulse stretching and compression are achieved by using a chirped fiber Bragg grating and a multilayer dielectric grating pair, respectively. Compressed 15 ps pulses from the RGA are obtained with a throughput efficiency of similar to 80% (similar to 6.5 mJ for 2 kHz). The booster amplifier further amplifies the pulses to 40 mJ at 2 kHz PRF, and similar to 32 mJ, similar to 15 ps pulses are expected after compression. The amplifier chain seeded from a femtosecond Yb-fiber laser enables the optical self-synchronization between signal and pump in optical parametric chirped-pulse amplifier applications. (C) 2010 Optical Society of America
引用
收藏
页码：1752 / 1754
页数：3
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