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高功率激光装置非线性相移测试技术

Nonlinear Phase Shift Test Technique on High Power Laser Facility

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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。

Abstract

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.

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中图分类号:TN247

DOI:10.3788/cjl201744.1001006

所属栏目:激光物理

基金项目: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

收稿日期:2017-04-19

修改稿日期:2017-06-20

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作者单位    点击查看

张 波:中国工程物理研究院激光聚变研究中心, 四川 绵阳 621900
孙志红:中国工程物理研究院激光聚变研究中心, 四川 绵阳 621900
赵军普:中国工程物理研究院激光聚变研究中心, 四川 绵阳 621900
李 森:中国工程物理研究院激光聚变研究中心, 四川 绵阳 621900
董 军:中国工程物理研究院激光聚变研究中心, 四川 绵阳 621900
夏彦文:中国工程物理研究院激光聚变研究中心, 四川 绵阳 621900
彭志涛:中国工程物理研究院激光聚变研究中心, 四川 绵阳 621900

联系人作者:张波(zhangbo19880331@sina.com)

备注:张 波(1988-), 男, 硕士, 助理研究员, 主要从事激光参数测量方面的研究。

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引用该论文

Zhang Bo,Sun Zhihong,Zhao Junpu,Li Sen,Dong Jun,Xia Yanwen,Peng Zhitao. Nonlinear Phase Shift Test Technique on High Power Laser Facility[J]. Chinese Journal of Lasers, 2017, 44(10): 1001006

张 波,孙志红,赵军普,李 森,董 军,夏彦文,彭志涛. 高功率激光装置非线性相移测试技术[J]. 中国激光, 2017, 44(10): 1001006

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