Propagation dynamics of nonlinear chirped optical laser pulses in a two-level medium |
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| Authors: | Haifeng Yao Yueping Niu Yandong Peng and Shangqing Gong |
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| Institution: | 3 , 1 1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3 Department of Physics, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | 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 2π 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. |
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