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Pure-quartic soliton in a birefringence-managed fiber laser

Author

Listed:
  • Tang, Ziya
  • Tu, Lisha
  • Jiang, Yu
  • Wang, Jiachen
  • Wang, Jinzhang
  • Yan, Peiguang
  • Liu, Xing
  • Ruan, Shuangchen
  • Guo, Chunyu

Abstract

Pure-quartic soliton (PQS) fiber lasers with a great variety of operating regimes have aroused considerable interest in high-energy ultrashort pulses and novel soliton patterns. Here, we numerically investigate the generation and dynamic properties of birefringence-managed pure-quartic soliton (BMPQS) in a positive fourth-order dispersion (FOD) fiber laser consisting of single-mode fibers and a section of polarization-maintaining fiber. The formation mechanism of the chirp-free BMPQS is dominated by the phase-matching effect, which arises from the co-actions of the birefringence, positive FOD, and nonlinear effects. It is observed that a higher FOD coefficient leads to energy transfer between the spectral sidebands inside the BMPQS. Moreover, the evolution of the BMPQS with the increase of the pump power confirms the phase-matching theory. Finally, the BMPQS molecule can be obtained with further increasing the pump power. This work offers a new avenue to create chirp-free pulses in positive FOD fiber lasers and enriches the sub-families of PQSs.

Suggested Citation

  • Tang, Ziya & Tu, Lisha & Jiang, Yu & Wang, Jiachen & Wang, Jinzhang & Yan, Peiguang & Liu, Xing & Ruan, Shuangchen & Guo, Chunyu, 2024. "Pure-quartic soliton in a birefringence-managed fiber laser," Chaos, Solitons & Fractals, Elsevier, vol. 183(C).
    • Handle: RePEc:eee:chsofr:v:183:y:2024:i:c:s0960077924004557
    DOI: 10.1016/j.chaos.2024.114903
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