Prepulse-free, multi-terawatt, sub-30-fs laser system

被引：24

作者：

Kiriyama, H ^{[1
]}

Inoue, N ^{[1
]}

Akahane, Y ^{[1
]}

Yamakawa, K ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Adv Photon Res Ctr, Kyoto 6190215, Japan

来源：

OPTICS EXPRESS | 2006年 / 14卷 / 01期

关键词：

D O I：

10.1364/OPEX.14.000438

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have built a prepulse-free, multi-terawatt, ultrashort pulse laser system, which combines both conventional laser amplification and optical parametric chirped pulse amplification (OPCPA) techniques. By employing an OPCPA system after the regenerative amplifier in a Ti:sapphire chirped pulse amplification laser chain, we have dramatically enhanced the prepulse contrast by 6 orders of magnitude. A prepulse contrast of better than 4.4 x 10(-11) has been measured with a high energy broadband pulse of 24 mJ at 10 Hz repetition rate from the OPCPA system. Using a subsequent four-pass Ti: sapphire amplifier, we have achieved an amplified energy of 279 mJ and an ultrashort recompressed amplified pulse duration of 23.5 fs, corresponding to the peak powers for OPCPA and four-pass amplifier of 0.5 TW and 5.9 TW, respectively. (c) 2006 Optical Society of America.

引用

页码：438 / 445

页数：8

共 19 条

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