高功率激光驱动器中幅频效应及其抑制技术研究进展

发布时间：2018-05-18 16:01

  本文选题：激光光学 + 惯性约束聚变　； 参考：《激光与光电子学进展》2017年02期

【摘要】：采用相位调制技术产生的具有一定光谱分布的相位调制脉冲可以有效抑制高功率激光驱动器中大口径光学元件的横向受激布里渊散射和满足光束匀滑需求,但该脉冲在装置各系统传输放大过程中,由于光谱畸变会引起幅频调制(FM-to-AM)效应,这种效应严重影响了激光装置的输出性能及实验效果。介绍了相位调制脉冲产生原理、引起FM-to-AM效应的根本原因及因素,综述了目前美国的国家点火装置、法国的兆焦耳装置以及我国的神光-Ⅲ主机装置在FM-to-AM效应抑制技术方面取得的重要进展。
[Abstract]:The phase modulation pulse with certain spectral distribution produced by phase modulation technique can effectively suppress the transverse stimulated Brillouin scattering of large aperture optical elements in high power laser driver and meet the demand of beam smoothing. However, during the transmission and amplification of the pulse in each system of the device, the amplitude-frequency modulation (AM-to-AM) effect is caused by the spectral distortion, which seriously affects the output performance and experimental results of the laser device. This paper introduces the principle of phase modulation pulse generation, the fundamental causes and factors of FM-to-AM effect, and summarizes the current national ignition devices in the United States. The MJ device in France and the Shenguang-鈪，

本文编号：1906483