中国物理B ›› 2017, Vol. 26 ›› Issue (10): 104205-104205.doi: 10.1088/1674-1056/26/10/104205

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

Generation of single and multiple dissipative soliton in an erbium-doped fiber laser

Li-Na Duan(段利娜), Jin Wen(文进), Wei Fan(樊伟), Wei Wang(王炜)   

  1. School of Science, Xi'an Shiyou University, Xi'an 710065, China
  • 收稿日期:2017-04-20 修回日期:2017-05-12 出版日期:2017-10-05 发布日期:2017-10-05
  • 通讯作者: Li-Na Duan E-mail:linaduan2010@hotmail.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61505160).

Generation of single and multiple dissipative soliton in an erbium-doped fiber laser

Li-Na Duan(段利娜), Jin Wen(文进), Wei Fan(樊伟), Wei Wang(王炜)   

  1. School of Science, Xi'an Shiyou University, Xi'an 710065, China
  • Received:2017-04-20 Revised:2017-05-12 Online:2017-10-05 Published:2017-10-05
  • Contact: Li-Na Duan E-mail:linaduan2010@hotmail.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61505160).

摘要: We experimentally report on the generation of single and multiple dissipative soliton via nonlinear polarization rotation technique. The spectrum of the mode-locked dissipative soliton exhibits typical steep edges with a flat top; the pulse duration is 10.07 ps. It is found that with the pump power increasing from 110 mW to 161 mW, the top of the mode-locked spectrum becomes flater and the 3-dB spectral bandwidth is broadened, which indicates that the gain-dispersion effect is lowered under stronger pump. However, the full bandwidth of the spectrum is narrowed, which proves that the spectral filter effect increases and overcomes the effect of self-phase modulation induced spectral broadening. Such a phenomenon was not noticed nor reported before. Our experiment also demonstrates that the pulse interval is highly dependent on the input pump power:with pump power increasing, the pulse interval tends towards more uniform. So our observation qualitatively analyzes the relationship between mode-locked pulse characteristics and input pump power.

关键词: fiber lasers, optical solitons, mode locking

Abstract: We experimentally report on the generation of single and multiple dissipative soliton via nonlinear polarization rotation technique. The spectrum of the mode-locked dissipative soliton exhibits typical steep edges with a flat top; the pulse duration is 10.07 ps. It is found that with the pump power increasing from 110 mW to 161 mW, the top of the mode-locked spectrum becomes flater and the 3-dB spectral bandwidth is broadened, which indicates that the gain-dispersion effect is lowered under stronger pump. However, the full bandwidth of the spectrum is narrowed, which proves that the spectral filter effect increases and overcomes the effect of self-phase modulation induced spectral broadening. Such a phenomenon was not noticed nor reported before. Our experiment also demonstrates that the pulse interval is highly dependent on the input pump power:with pump power increasing, the pulse interval tends towards more uniform. So our observation qualitatively analyzes the relationship between mode-locked pulse characteristics and input pump power.

Key words: fiber lasers, optical solitons, mode locking

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.81.Dp (Propagation, scattering, and losses; solitons) 42.60.Fc (Modulation, tuning, and mode locking)