Pulse dynamics in carbon nanotube mode-locked fiber lasers near zero cavity dispersion

Research output: Contribution to journalArticleScientificpeer-review


  • Jinzhang Wang
  • Zhiping Cai
  • Ping Xu
  • Geguo Du
  • Fengqiu Wang
  • Shuangchen Ruan
  • Zhipei Sun
  • Tawfique Hasan

Research units

  • Shenzhen University
  • Xiamen University
  • Nanjing University
  • University of Cambridge


We numerically and experimentally analyze the output characteristics and pulse dynamics of carbon nanotube mode-locked fiber lasers near zero cavity dispersion (from 0.02 to ∼- 0.02 ps2). We focus on such near zero dispersion cavities to reveal the dispersion related transition between different mode-locking regimes (such as soliton-like, stretchedpulse and self-similar regimes). Using our proposed model, we develop a nanotube-mode-locked fiber laser setup generating ∼97 fs pulse which operates in the stretched-pulse regime. The corresponding experimental results and pulse dynamics are in good agreement with the numerical results. Also, the experimental results from soliton-like and self-similar regimes exhibit the same trends with simulations. Our study will aid design of different mode-locking regimes based on other new saturable absorber materials to achieve ultra-short pulse duration.


Original languageEnglish
Pages (from-to)19947-19958
Number of pages12
JournalOptics Express
Issue number8
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

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