Suppression of the amplified spontaneous emission in chirped-pulse-amplification lasers by clean high-energy seed-pulse injection

被引：146

作者：

Itatani, J

Faure, J

Nantel, M

Mourou, G

Watanabe, S

机构：

[1] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 106, Japan

[2] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

来源：

OPTICS COMMUNICATIONS | 1998年 / 148卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

chirped pulse amplification; terawatt lasers; amplified spontaneous emission; pulse cleaning;

D O I：

10.1016/S0030-4018(97)00638-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have suppressed the amplified spontaneous emission in a femtosecond terawatt Ti:sapphire chirped-pulse-amplification (CPA) laser by injecting clean microjoule seed pulses into thr regenerative amplifier. The intensity contrast ratio, which is one of the major difficulties in CPA lasers, was improved from similar to 10(5) in the original nanojoule injection case to similar to 10(7) in the nanosecond scale. (C) 1998 Elsevier Science B.V.

引用

收藏

页码：70 / 74

页数：5

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