超短脉冲的光谱整形  

Spectrum Shaping of the Ultrashort Pulse

作　　者：朱鹏飞[1] 杨镜新[2] 薛绍林[2] 李美荣[2] 林尊琪[2] 

机构地区：[1]上海交通大学物理系,上海200240 [2]中国科学院上海光学精密机械研究所高功率激光物理国家实验室,上海201800

出　　处：《中国激光》2003年第12期1075-1078,共4页Chinese Journal of Lasers

基　　金：国家高技术研究发展计划 (86 3 80 4 2 )资助课题

摘　　要：针对激光放大过程中的增益窄化效应 ,采用了窄带干涉滤光片与石英双折射滤光片两种器件对中心波长10 5 3nm ,谱宽 13nm的超短脉冲进行光谱整形。石英晶片的参数由计算机仿真确定。光谱整形的实验结果与数值模拟的结果吻合较好。整形后的光谱形状变为平顶 ,谱宽增加了 2nm。To alleviate gain narrowing, the interference filter and the quartz birefringent filter were used to shape the spectrum of ultra-short pulse with the FWHM bandwidth of 13 nm at λ=1053 nm. The parameters of quartz plate were decided by simulation with computer. The experimental result is coincident with the simulation of the spectrum shaping. The shape of the spectrum becomes flat at its top and the FWHM bandwidth broadens 2 nm.

关 键 词：激光技术 超短脉冲 光谱整形 干涉滤光片 双折射滤光片 

分 类 号：O433[机械工程—光学工程]