一种纳秒(ns)级四通透射式面光栅压缩器设计与实验  

Design and Experiment of Nanosecond-level Four-pass Ways Transmitted Surface Grating Compressors

作　　者：张帆[1] 周松[1] 黄智蒙 刘必达 张涵 张锐[1] 彭志涛[1] ZHANG Fan;ZHOU Song;HUANG Zhimeng;LIU Bida;ZHANG Han;ZHANG Rui(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30-34,共5页Electro-Optic Technology Application

摘　　要：建立了面光栅压缩器的理论设计模型,明确了光栅常数、入射角度、色散量和光栅尺寸等关键物理参量,利用光线追迹的方法设计了一种纳秒(ns)级面光栅压缩器,该压缩器采用单个面光栅和四通透射式结构,具有色散可调范围大、衍射效率高、结构紧凑、耐受功率强等优点。研制的ns级四通透射式面光栅压缩器,衍射效率为73.2%,达到理论值的94%,输出脉冲宽度为459 fs。A theoretical model for designing a surface grating compressor is established,and key physical parameters including grating constant,incident angle,dispersion and grating size are clarified.Using ray-trace method,a sort of nanosecond(ns)level surface grating compressors is designed,which adopts a single surface grating and a four-way transmission structure.The compressor has advantages such as large dispersion adjustable range,high diffraction efficiency,compact structure and strong power tolerance.The ns level four pass transmission surface grating compressor has a diffraction efficiency of 73.2%,reaching 94%of the theoretical value,and an output pulse width of 459 fs.

关 键 词：超短脉冲激光 四通透射式 面光栅压缩器 

分 类 号：TN248[电子电信—物理电子学]