高功率激光整形脉冲波形控制技术

李海; 梁樾; 赵润昌; 李平

doi:doi:10.3788/hplpb20112309.2377

强激光与粒子束, 2011, 23 (9): 2377, 网络出版: 2011-10-27

高功率激光整形脉冲波形控制技术

Waveform control technique of high power laser pulse shaping

论文大纲

李海 ^*梁樾赵润昌李平

作者单位

中国工程物理研究院激光聚变研究中心, 四川绵阳 621900

高功率激光装置整形脉冲预测模型增益曲线 high power laser facility pulse shaping prediction model gain curve

摘要

针对神光Ⅲ原型装置物理实验要求的三台阶整形脉冲（三个台阶的脉冲宽度比为1.5∶1.0∶0.5，强度比为1∶4∶16，脉冲总能量为500 J），并根据该装置的系统构成和具备任意脉冲整形技术，开展了高功率激光整形脉冲波形控制技术研究，通过对基频光段的增益饱和效应和三倍频光的频率转换过程的分析，获得了脉冲时间波形在传输、放大及频率转换过程中的一些变化特点，在此基础上建立了一套简单的预测模型。经过反复迭代计算和多次全系统联机实验获得了实验结果,并在物理实验中得到了应用，初步形成了高功率激光整形脉冲波形的控制方法。

Abstract

In order to achieve threestep pulse shaping (time proportion 1.5 ns∶1.0 ns∶0.5 ns, power proportion 1∶4∶16, total energy 500 J) required by the physical experiments on ShenguangⅢ technical integration experimental line(TIL), some researches on waveform control of high power laser pulse shaping have been done on the basis of TIL system structure and the technology which can form arbitrary pulse waveform. By analyzing gain saturation effect and frequency conversion process, the paper gets the pulse change in transmission, amplification and frequency conversion processes, and builds a simple prediction model. Good experimental results are obtained by pulse waveform predicting, pulse shaping and repeated iteration of laser emission data, and used in the physical experiments. A preliminary waveform control method of high power laser pulse shaping is gained.

参考文献

[1] 王文义.神光Ⅲ原型装置运行软件仿真系统的研究［R］.国防科技报告, 2006.(Wang Wenyi. Study on simulation model of TIL operational software. China Defense Science and Technology Reports, 2006)

[2] 王文义，赵润昌，粟敬钦，等.高功率固体激光性能仿真模型［J］．光学学报， 2008， 28(s1)：2327．(Wang Wenyi, Zhao Runchang, Su Jingqin, et al. Highpower solidstate laser performace simulation model. Acta Optica Sinica, 2008, 28(s1):2327)

[3] 唐立家，蔡希洁，林尊琪，等．“神光Ⅱ”主放大器中的波形控制［J］.物理学报, 2001, 50(6):10751079.(Tang Lijia, Cai Xijie, Lin Zunqi, et al. Control of pulse shape in “Shenguang Ⅱ” main amplifers. Acta Physica Sinica, 2001, 50(6):10751079)

[4] 王成程, 郑万国, 於海武,等.大口径方光束片状放大器小信号增益实验研究［J］.强激光与粒子束, 2000, 12(2):155158.(Wang Chengcheng, Zheng Wanguo, Yu Haiwu, et al . Research of small signal gain character in large aperture square beam slab amplifiers. High Power Laser and Particle Beams, 2000, 12(2):155158)

[5] 刘仁红，蔡希洁，杨琳,等.激光脉冲放大器的增益通量曲线研究［J］.物理学报， 2005, 54(7):31403143.(Liu Renhong, Cai Xijie, Yang Lin, et al. Study on gain fluence curve of a laser pulse amplifier. Acta Physica Sinica, 2005, 54(7):31403143)

[6] 王文义.光传输软件SG99的实验考核［R］.国防科技报告, 2005.(Wang Wenyi. Experiment examination on SG99 which is soft of optical transmission. China Defense Science and Technology Reports, 2005)

李海, 梁樾, 赵润昌, 李平. 高功率激光整形脉冲波形控制技术[J]. 强激光与粒子束, 2011, 23(9): 2377. Li Hai, Liang Yue, Zhao Runchang, Li Ping. Waveform control technique of high power laser pulse shaping[J]. High Power Laser and Particle Beams, 2011, 23(9): 2377.

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