中国激光, 2003, 30 (12): 1075, 网络出版: 2006-06-27
超短脉冲的光谱整形
Spectrum Shaping of the Ultrashort Pulse
激光技术 超短脉冲 光谱整形 干涉滤光片 双折射滤光片 laser technique femtosecond pulse spectrum shaping interference filter birefringent filter
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1053 nm,谱宽13 nm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2 nm。
Abstract
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.
朱鹏飞, 杨镜新, 薛绍林, 李美荣, 林尊琪. 超短脉冲的光谱整形[J]. 中国激光, 2003, 30(12): 1075. 朱鹏飞, 杨镜新, 薛绍林, 李美荣, 林尊琪. Spectrum Shaping of the Ultrashort Pulse[J]. Chinese Journal of Lasers, 2003, 30(12): 1075.