Self-compression of 1.8-μm pulses in gas-filled hollow-core fibers  

作　　者：赵睿睿 王丁 赵钰 冷雨欣 李儒新 

机构地区：[1]State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences [2]University of Chinese Academy of Sciences

出　　处：《Chinese Physics B》2017年第10期242-248,共7页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.61475169,61521093,and 11127901);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB16);the International Science and Technology Cooperation Program of China(Grant No.2016YFE0119300)

摘　　要：We numerically study the self-compression of the optical pulses centered at 1.8-μm in a hollow-core fiber （HCF） filled with argon. It is found that the pulse can be self-compressed to 2 optical cycles when the input pulse energy is 0.2-mJ and the gas pressure is 500-mbar （1 bar=10^5 Pa）. Inducing a proper positive chirp into the input pulse can lead to a shorter temporal duration after self-compression. These results will benefit the generation of energetic few-cycle mid-infrared pulses.We numerically study the self-compression of the optical pulses centered at 1.8-μm in a hollow-core fiber （HCF） filled with argon. It is found that the pulse can be self-compressed to 2 optical cycles when the input pulse energy is 0.2-mJ and the gas pressure is 500-mbar （1 bar=10^5 Pa）. Inducing a proper positive chirp into the input pulse can lead to a shorter temporal duration after self-compression. These results will benefit the generation of energetic few-cycle mid-infrared pulses.

关 键 词：spatiotemporal dynamics SELF-COMPRESSION mid-infrared pulses hollow-core fibers 

分 类 号：TN24[电子电信—物理电子学]