基于Gires-Tournois干涉腔的短脉冲时域相干堆积数值模拟研究  

Research on Numerical Simulation of Temporal Coherent Stacking of Short Pulse Based on Gires-Tournois Interferometer

作　　者：刘必达 黄智蒙 张帆[1] 周丹丹[1] 彭志涛[1] 李平[1] LIU Bida;HUANG Zhimeng;ZHANG Fan;ZHOU Dandan;PENG Zhitao;LI Ping(Laser Fusion Research Center,CAEP,Mianyang,China)

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳

出　　处：《光电技术应用》2024年第6期25-29,34,共6页Electro-Optic Technology Application

摘　　要：建立了基于GTI(Gires-Tournois interferometer)腔的短脉冲时域相干堆积的理论模型,对GTI腔内的脉冲相干堆积及其时域演化过程进行了理论仿真。数值模拟并分析了输入脉冲串的幅度、相位等因素对相干堆积波形和效率的影响。通过对脉冲串幅度与相位分布的模拟与优化设计,使得三脉冲与五脉冲相干堆积的峰值放大倍数分别达到了2.479和4.43,主脉冲能量占比为96.9%和95.1%。A theoretical model of temporal coherent stacking of short pulse based on Gires-Tournois interferometer(GTI)has been established.The progress of coherent pulse stacking and its temporal evolution is simulated theoretically.The impact of amplitudes and phases in the pulse burst on the stacking shape and efficiency is simulated numerically and analyzed.Through the simulation and optimized design of the amplitudes and phases in the pulse burst,the peak amplification coefficients of three pulses and five pulses in the coherent stacking are approaching 2.479 and 4.43,and the energies in the main pulse are 96.9%and 95.1%respectively.

关 键 词：光纤激光 短脉冲 脉冲相干堆积 

分 类 号：TN248[电子电信—物理电子学]