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Numerical study of high-energy dissipative soliton generation in a 2.8μm mid-infrared ultrafast fiber laser

Author

Listed:
  • Dong, Yuhe
  • Liang, Wentao
  • Xiao, Xusheng
  • Xiao, Yang
  • He, Wentao
  • Chen, Shimin
  • Yan, Lihe
  • Wang, Chaoran
  • Guo, Haitao

Abstract

Mid-infrared mode-locked fiber lasers are highly desirable for advanced applications but face limitations in scaling pulse energy. This work presents a theoretical demonstration of a high-energy laser design that employs an As2S3 fiber for integrated dispersion and nonlinearity management in an Er3+:ZBLAN fiber laser. The exceptional properties of As2S3 fiber, including its large normal dispersion and high nonlinearity, are leveraged for precise cavity control. Through numerical simulations and parameter exploration, a net normal dispersion cavity is engineered to support dissipative soliton operation. The proposed design enables stable dissipative soliton generation at 2.8μm, delivering a calculated pulse energy of 528.49 nJ and a dechirped pulse width of 380.15 fs. Furthermore, our model predicts, for the first time, the existence of a noise-like pulse regime in the mid-infrared spectrum under net normal dispersion conditions. This theoretical study establishes the As2S3 fiber as a versatile component for exploring high-energy ultrafast dynamics and providing insight into the dynamics of high-energy mid-infrared pulses.

Suggested Citation

  • Dong, Yuhe & Liang, Wentao & Xiao, Xusheng & Xiao, Yang & He, Wentao & Chen, Shimin & Yan, Lihe & Wang, Chaoran & Guo, Haitao, 2026. "Numerical study of high-energy dissipative soliton generation in a 2.8μm mid-infrared ultrafast fiber laser," Chaos, Solitons & Fractals, Elsevier, vol. 206(C).
    • Handle: RePEc:eee:chsofr:v:206:y:2026:i:c:s0960077926001293
    DOI: 10.1016/j.chaos.2026.117988
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