Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2014, Vol. 37 ›› Issue (4): 74-78.doi: 10.13190/j.jbupt.2014.04.016

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Chirp Extraction of Self-similar Pulses Based on Passively Mode-locked Fiber Laser System

GAO Bo1, WU Ge2, HUO Jia-yu1, TIAN Xiao-jian2   

  1. 1. College of Communication Engineering, Jilin University, Changchun 130012, China;
    2. College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
  • Received:2014-03-18 Online:2014-08-28 Published:2014-08-09

Abstract:

The chirp extraction of self-similar pulses was studied based on passively mode-locked Yb-doped fiber laser system and passively mode-locked Er-doped fiber laser system. The authors use the time-frequency analysis methods of Short-time Fourier Transform and Wigner-Ville Distribution to extract the chirp in mode-locked fiber laser system. The result was proved through simulation experiments analysis The advantages and disadvantages of the two time-frequency analysis methods by statistical characteristics were given. The results provide the theoretical and experimental foundation for judging pulses are self-similar pulses generated by the mode-locked fiber laser system.

Key words: self-similar pulse, passively mode-locked Yb-doped fiber laser system, passively mode-locked Er-doped fiber laser system, chirp extraction

CLC Number: