GENERATION OF A HIGH-ENERGY PICOSECOND LASER-PULSE WITH A HIGH-CONTRAST RATIO BY CHIRPED-PULSE AMPLIFICATION

被引:24
作者
YAMAKAWA, K [1 ]
BARTY, CPJ [1 ]
SHIRAGA, H [1 ]
KATO, Y [1 ]
机构
[1] STANFORD UNIV,EDWARD L GINZTON LAB,STANFORD,CA 94305
基金
日本科学技术振兴机构;
关键词
D O I
10.1109/3.78233
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We report the generation of a 1.052-mu-m laser pulse of 3.5 ps duration and 28J energy by fiber-grating chirped-pulse amplification in a large aperture Nd-glass laser system. The 8 TW peak power has a high-contrast ratio of better than 900, limited by the dynamic range of the detection system. The high-contrast ratio was obtained by selecting only the central portion of the frequency-chirped pulse where the chirp is positive and linear. The high-intensity compressed pulse thus generated was frequency upconverted to 526 nm with a 40% conversion efficiency.
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页码:288 / 294
页数:7
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