The influence of smoothing by spectral dispersion on the beam characteristics in the near field  

作　　者：樊心民 吕志伟 林殿阳 王雨雷 

机构地区：[1]National Key Laboratory of Science and Technology on Tunable Laser,Harbin Institute of Technology

出　　处：《Chinese Physics B》2013年第10期323-327,共5页中国物理B（英文版）

基　　金：Project supported by the State Key Program of the National Natural Science Foundation of China (Grant No.61138005);the National Natural Science Foundation of China (Grant No.61008005)

摘　　要：The influences of SSD on the beam characteristics in the near held are investigated. Results snow that it the SSD parameters are increased, the laser intensity modulation increases while fluence modulation decreases, which is attributed to the temporal and spatial variation of the SSD pulse phase. The variations of intensity and fluence modulations with the SSD parameters are given. The simulation results are presented along with a method for choosing appropriate SSD parameters according to the variations and the requirements of applications.The influences of SSD on the beam characteristics in the near held are investigated. Results snow that it the SSD parameters are increased, the laser intensity modulation increases while fluence modulation decreases, which is attributed to the temporal and spatial variation of the SSD pulse phase. The variations of intensity and fluence modulations with the SSD parameters are given. The simulation results are presented along with a method for choosing appropriate SSD parameters according to the variations and the requirements of applications.

关 键 词：smoothing by spectral dispersion intensity modulation degree fluence modulation degree 

分 类 号：O43[机械工程—光学工程]