物理学报2011，Vol.60Issue(12)：265-269,5.
飞秒超强激光多通预放大过程中的脉冲信噪比研究
Contrast ratio of femtosecond ultraintense Ti：sapphire laser with multi-pass amplifier
摘要
Abstract
According to the theory of chirped pulse amplification （CPA）,we analyze numerically the gain characteristic of laser pulses in multi-pass amplifier.A CPA Ti：sapphire laser with 10-pass scheme is designed and built.The experimental result shows that the contrast ratio of the femtosecond pulse is obviously enhanced by two orders from 10-5 to 10-7 under a pump flux of 1.6 J/cm2.This work demonstrates that the contrast ratio of the amplified femtosecond laser pulse could be effectively improved by multi-pass preamplifier.关键词
多通预放大/信噪比/飞秒钛宝石激光器Key words
multi-pass preamplifier/contrast ratio/femtosecond Ti：sapphire laser分类
信息技术与安全科学引用本文复制引用
李伟昌,王兆华,刘成,滕浩,魏志义..飞秒超强激光多通预放大过程中的脉冲信噪比研究[J].物理学报,2011,60(12):265-269,5.基金项目
国家自然科学基金 （）
国家高技术研究发展计划 （）
国家重点基础研究发展计划（批准号：2007CB815104）资助的课题 （）
