摘要
针对非啁啾激光脉冲,提出了一种基于枚举思想的高功率激光装置非线性相移测试方法。结合脉冲波形和能流变化,得到不同非线性相移假设值下脉冲放大后展宽光谱的理论分布。然后将展宽光谱的理论分布与实测结果进行比较,两者残差最小时理论展宽光谱对应的非线性相移假设值即为测量结果。测试技术和方法不受脉冲时间波形的限制,有效提高了测量结果的置信度。
A nonlinear phase shift test method of high power laser facility based on enumeration thought is proposed for no-chirp laser pulse.Combined with the pulse waveform and the variation of energy flow,the theoretical distribution of broadening spectrum after pulse amplification is obtained under different nonlinear phase shift hypotheses.The theoretical distributions of the broadening spectra are compared with the measured ones.Then hypothetical values of the nonlinear phase shifts corresponding to the theoretical broadening spectra are the results of the measurements when the residuals are the minimum.This technique and method are not limited by the pulse time waveform,which effectively improve the confidence of the measurement results.
作者
张波
孙志红
赵军普
李森
董军
夏彦文
彭志涛
Zhang Bo Sun Zhihong Zhao Junpu Li Sen Dong Jun Xia Yanwen Peng Zhitao(Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang, Sichuan 621900, China)
出处
《中国激光》
EI
CAS
CSCD
北大核心
2017年第10期45-51,共7页
Chinese Journal of Lasers
基金
国家自然科学基金(61605185)
国家自然科学基金(61377102)
国防基础科研计划(B1520133010)
中物院激光聚变研究中心青年人才成长基金
关键词
测量
非线性相移
枚举
光谱
measurement
nonlinear phase shift
enumeration
spectrum
