Propagation dynamics of nonlinear chirped optical laser pulses in a two-level medium  

作　　者：姚海凤 钮月萍 彭延东 龚尚庆 

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]Graduate University of Chinese Academy of Sciences [3]Department of Physics, East China University of Science and Technology

出　　处：《Chinese Optics Letters》2012年第1期54-56,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant Nos.10874194and 60978013

摘　　要：We investigate the propagation dynamics of nonlinear chirped optical laser pulses in a two-level medium. For certain chirp strength and chirp width, an incident 21r nonlinear chirped pulse will split into optical precursors and a stable self-induced transparency soliton. This is caused by the particular Fourier spectrum that includes not only central resonant frequency components but also high-frequency and low-frequency sidebands. Moreover, the effects of chirp parameters on the evolution of nonlinear chirped pulses are also discussed.We investigate the propagation dynamics of nonlinear chirped optical laser pulses in a two-level medium. For certain chirp strength and chirp width, an incident 21r nonlinear chirped pulse will split into optical precursors and a stable self-induced transparency soliton. This is caused by the particular Fourier spectrum that includes not only central resonant frequency components but also high-frequency and low-frequency sidebands. Moreover, the effects of chirp parameters on the evolution of nonlinear chirped pulses are also discussed.

关 键 词：DYNAMICS Natural frequencies SOLITONS 

分 类 号：O437[机械工程—光学工程]