基于空心光纤技术产生高能量周期量级脉冲压缩  

Generation of High-Energy Few-Cycle Pulses Compression through a Hollow-Core Fiber

作　　者：李冬雪[1] 王丁[1] 陈晓伟[1] 冷雨欣[1] 

机构地区：[1]中国科学院上海光学精密机械研究所强场激光物理国家重点实验室,上海201800

出　　处：《中国激光》2010年第8期1939-1942,共4页Chinese Journal of Lasers

基　　金：国家973计划(2006CB806001);国家自然科学基金(60908008);中国科学院知识创新工程重要方向项目(KGCX-YW-417-2);上海市科委项目(07JC14055)资助课题

摘　　要：系统研究了利用充惰性气体的250μm内径的空心光纤(HCF)展宽光谱和啁啾镜补偿色散的高能量周期量级脉冲压缩技术。基于此技术,研究了入射激光脉冲能量和腔内惰性气体气压对于压缩后脉冲宽度和输出能量的影响。将钛宝石激光器输出的脉冲宽度40 fs,单脉冲能量2.7 mJ,重复频率1 kHz,中心波长在800 nm的激光脉冲输入压缩系统,获得了脉冲宽度7 fs,单脉冲能量大于1 mJ,中心波长为750 nm的稳定周期量级激光脉冲。The intense few-cycle pulse compression technique based on 250-μm-inner-diameter single fused-silica hollow-core fiber（HCF） and subsequent negative dispersive compression stage by chirped mirrors is researched systemicly.Using the system,we study the influence of parameters like input pulse energy and gas pressure to the final duration and output energy of the compressed pulse.On this basis,7 fs compressed pulses with energy of more than 1 mJ and centre wavelength of 750 nm are obtained through this Ne-filled HCF system,and the driving source is from a 1-kHz Ti ∶sapphire laser generating 2.7 mJ driving pulses centered at 800 nm with 40 fs duration.

关 键 词：超快光学 脉冲压缩 空心光纤 周期量级脉冲 

分 类 号：O437[机械工程—光学工程]