Laser pulse spectral shaping based on electro-optic modulation

被引：6
|
作者：
Wang, Yanhai [1 ,2 ]
Wang, Jiangfeng [1 ]
Jiang, You'en [1 ]
Bao, Yan [1 ]
Li, Xuechun [1 ]
Lin, Zunqi [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Natl Lab High Power Laser Phys, Shanghai 201800, Peoples R China
[2] Hebei Univ Sci & Technol, Coll Sci, Shijiazhuang 050018, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2008年 / 6卷 / 11期
关键词：
D O I：
10.3788/COL20080611.0841
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new spectrum shaping method, based on electro-optic modulation, to alleviate gain narrowing in chirped pulse amplification (CPA) system, is described and numerically simulated. Near-Fourier transform-limited seed laser pulse is chirped linearly through optical stretcher. Then the chirped laser pulse is coupled into integrated waveguide electro-optic modulator driven by an aperture-coupled-stripline (ACSL) electrical-waveform generator, and the pulse shape and amplitude are shaped in time domain. Because of the direct relationship between frequency interval and time interval of the linearly chirped pulse, the laser pulse spectrum is shaped correspondingly. Spectrum-shaping examples are modeled numerically to determine the spectral resolution of this technique. The phase error introduced in this method is also discussed.
引用
收藏
页码：841 / 844
页数：4
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