Laser pulse spectral shaping based on electro-optic modulation |
| |
| Authors: | Yanhai Wang Jiangfeng Wang You'en Jiang Yan Bao Xuechun Li Zunqi Lin |
| |
| Institution: | [1]National Laboratory of High Power Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800; [2]College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050018 |
| |
| Abstract: | 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) electricalwaveform generator, and the pulse shape and amplitude are shaped in time domain. Because of the directrelationship 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. |
| |
| Keywords: | |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
