中国物理B ›› 2018, Vol. 27 ›› Issue (5): 54214-054214.doi: 10.1088/1674-1056/27/5/054214

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Nonlinear spectral cleaning effect in cross-polarized wave generation

Linpeng Yu(於林鹏), Yi Xu(许毅), Fenxiang Wu(吴分翔), Xiaojun Yang(杨晓骏), Zongxin Zhang(张宗昕), Yuanfeng Wu(吴圆峰), Yuxin Leng(冷雨欣), Zhizhan Xu(徐至展)   

  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 University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2017-11-17 修回日期:2018-01-04 出版日期:2018-05-05 发布日期:2018-05-05
  • 通讯作者: Yi Xu, Yuxin Leng E-mail:xuyi@siom.ac.cn;lengyuxin@mail.siom.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos.11127901,61521093,and 61505234),the International S&T Cooperation of Program of China (Grant No.2016YFE0119300),the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No.XDB160301),and the Youth Innovation Promotion Association,Chinese Academy of Sciences.

Nonlinear spectral cleaning effect in cross-polarized wave generation

Linpeng Yu(於林鹏)1,2, Yi Xu(许毅)1, Fenxiang Wu(吴分翔)1,2, Xiaojun Yang(杨晓骏)1, Zongxin Zhang(张宗昕)1, Yuanfeng Wu(吴圆峰)1, Yuxin Leng(冷雨欣)1, Zhizhan Xu(徐至展)1   

  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 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-11-17 Revised:2018-01-04 Online:2018-05-05 Published:2018-05-05
  • Contact: Yi Xu, Yuxin Leng E-mail:xuyi@siom.ac.cn;lengyuxin@mail.siom.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos.11127901,61521093,and 61505234),the International S&T Cooperation of Program of China (Grant No.2016YFE0119300),the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No.XDB160301),and the Youth Innovation Promotion Association,Chinese Academy of Sciences.

摘要:

The underlying mechanism of the spectral cleaning effect of the cross-polarized wave (XPW) generation process was theoretically investigated. This study shows that the spectral noise of an input spectrum can be removed in the XPW generation process and that the spectral cleaning effect depends on the characteristics of the input pulses, such as the chirp and Fourier-transform-limited duration of the initial pulse, and the modulation amplitude and frequency of the spectral noise. Though these factors codetermine the output spectrum of the XPW generation process, the spectral cleaning effect is mainly affected by the initial pulse chirp. The smoothing of the spectrum in the XPW generation process leads to a significant enhancement of the coherent contrast.

关键词: nonlinear optics, cross-polarized wave generation, spectral cleaning effect

Abstract:

The underlying mechanism of the spectral cleaning effect of the cross-polarized wave (XPW) generation process was theoretically investigated. This study shows that the spectral noise of an input spectrum can be removed in the XPW generation process and that the spectral cleaning effect depends on the characteristics of the input pulses, such as the chirp and Fourier-transform-limited duration of the initial pulse, and the modulation amplitude and frequency of the spectral noise. Though these factors codetermine the output spectrum of the XPW generation process, the spectral cleaning effect is mainly affected by the initial pulse chirp. The smoothing of the spectrum in the XPW generation process leads to a significant enhancement of the coherent contrast.

Key words: nonlinear optics, cross-polarized wave generation, spectral cleaning effect

中图分类号:  (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)

  • 42.65.Sf
42.65.-k (Nonlinear optics) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)