Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (1): 14207-014207.doi: 10.1088/1674-1056/22/1/014207

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

Interaction of parabolic-shaped pulse pair in a passively mode-locked Yb-doped fiber laser

王大帅a, 吴戈a, 高博b, 田小建a   

  1. a College of Electronic Science and Engineering, Jilin University, Changchun 130012, China;
    b College of Communication Engineering, Jilin University, Changchun 130012, China
  • 收稿日期:2012-05-03 修回日期:2012-06-18 出版日期:2012-12-01 发布日期:2012-12-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 60372061 ) and the Scientific Forefront and Interdisciplinary Innovation Project of Jilin University, China (Grant No. 200903296).

Interaction of parabolic-shaped pulse pair in a passively mode-locked Yb-doped fiber laser

Wang Da-Shuai (王大帅)a, Wu Ge (吴戈)a, Gao Bo (高博)b, Tian Xiao-Jian (田小建)a   

  1. a College of Electronic Science and Engineering, Jilin University, Changchun 130012, China;
    b College of Communication Engineering, Jilin University, Changchun 130012, China
  • Received:2012-05-03 Revised:2012-06-18 Online:2012-12-01 Published:2012-12-01
  • Contact: Tian Xiao-Jian E-mail:0204113@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 60372061 ) and the Scientific Forefront and Interdisciplinary Innovation Project of Jilin University, China (Grant No. 200903296).

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摘要： We numerically investigate the formation and interaction of parabolic-shaped pulse pair in a passively mode-locked Yb-doped fiber laser. Based on a lumped model, the parabolic-shaped pulse pair is obtained by controlling the inter-cavity average dispersion and gain saturation energy, Moreover, pulse repulsive and attractive motion are also achieved with different pulse separations. Simulation results show that the phase shift plays an important role in pulse interaction, and the interaction is determined by the inter-cavity average dispersion and gain saturation energy, i.e., the strength of the interaction is proportional to the gain saturation energy, the stronger gain saturation energy will result in higher interaction intensity. On the contrary, the increase of the inter-cavity dispersion will counterbalance some interaction force. The results also show that the interaction of a parabolic-shaped pulse pair has a larger interaction distance compare to the conventional solitons.

关键词: passively mode-locked fiber laser, parabolic-shaped pulse pair, pulses interaction

Abstract: We numerically investigate the formation and interaction of parabolic-shaped pulse pair in a passively mode-locked Yb-doped fiber laser. Based on a lumped model, the parabolic-shaped pulse pair is obtained by controlling the inter-cavity average dispersion and gain saturation energy, Moreover, pulse repulsive and attractive motion are also achieved with different pulse separations. Simulation results show that the phase shift plays an important role in pulse interaction, and the interaction is determined by the inter-cavity average dispersion and gain saturation energy, i.e., the strength of the interaction is proportional to the gain saturation energy, the stronger gain saturation energy will result in higher interaction intensity. On the contrary, the increase of the inter-cavity dispersion will counterbalance some interaction force. The results also show that the interaction of a parabolic-shaped pulse pair has a larger interaction distance compare to the conventional solitons.

Key words: passively mode-locked fiber laser, parabolic-shaped pulse pair, pulses interaction

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.60.Fc (Modulation, tuning, and mode locking)