高峰值功率亚纳秒脉冲光纤放大器特性研究  

Study on Characteristics of Picosecond Pulsed Fiber Amplifier with High Peak Power

作　　者：杜松涛[1,2] 王子薇[1,2] 何晶[1,2] 王兆坤[1,2] 孟俊清[1] 周军[1] 楼祺洪[1] 魏运荣[1] 王之江[1] 李骁军 

机构地区：[1]中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室,上海201800 [2]中国科学院大学,北京100049 [3]上海飞博激光科技有限公司上海201800

出　　处：《中国激光》2013年第6期109-113,共5页Chinese Journal of Lasers

基　　金：上海市青年科技启明星计划(12QH1401100)资助课题

摘　　要：以被动调Q的固体薄片激光器作为种子光源,以中心波长976nm的半导体激光器为抽运源,通过端面抽运耦合,搭建了窄脉宽双包层掺镱光纤放大器。实验研究了前向、后向端面抽运方式对窄脉宽双包层掺镱光纤放大器的输出平均功率、激光光谱、脉冲宽度等特性的影响,并进行分析讨论。结果表明,采用后向抽运方式,窄脉宽双包层掺镱光纤放大器,获得了平均功率为9.3W的放大激光输出,重复频率为10kHz,脉冲宽度为450ps,峰值功率大于2MW。A subnanosecond pulsed, one-stage Yb-doped fiber master oscillator power amplifier （MOPA） system for different pumping constructions is reported, which is seeded by a passively Q-switched Nd： YAG microchip laser. The comparison and discussions of average power, spectrum, together with pulse temporal profile of output laser under the forward pumping and backward pumping conditions are presented. Results show that the latter one provides the better performance, in which average output power as high as 9.3 W is achieved with pulse duration of 450 ps at 10 kHz repetition rate. The corresponding peak power is higher than 2 MW.

关 键 词：光纤激光 薄片激光器 皮秒脉冲 前向抽运 后向抽运 

分 类 号：O436[机械工程—光学工程] TN253[理学—光学]