Near transform-limited nanosecond pulse generation in mode-locked fiber lasers
By introducing significant anomalous dispersion in a fiber laser, we numerically obtained a mode-locked pulse with a pulse duration of 1.9 ns and 3-dB bandwidth of 1.3 pm, which corresponds to a time-bandwidth product of about 0.317. The output pulse energy is 1.9 nJ. The variation of output pulses versus introduced dispersion is presented. It is found that, determined by the soliton area theorem, transform-limited nanosecond mode-locked pulses could be expected. In addition, we numerically observed the period doubling phenomenon by increasing the pump power, which indicates that fiber lasers operating in the regime of significant anomalous dispersion can still exhibit rich nonlinear dynamics based on nanosecond pulses. For a fixed cavity dispersion, the pulse energy achievable is limited by the appearance of pulse nonlinear dynamics.
Authors
- Andrey Komarov (ORCID: https://orcid.org/0000-0003-0706-2717)
- Zhi Zhao (ORCID: https://orcid.org/0000-0002-7634-9802)
- L. M. Kovachev (ORCID: https://orcid.org/0000-0003-4432-6857)
- Luming Zhao (ORCID: https://orcid.org/0000-0002-4150-1157)
- Ming Tang (ORCID: https://orcid.org/0000-0001-8669-4186)
- Fulong Chen (ORCID: https://orcid.org/0000-0003-0557-5084)
- Xueping Cheng
- Xiahui Tang
Institutions
- Russian Academy of Sciences (RU)
- Bulgarian Academy of Sciences (BG)
- Applied Photonics (United Kingdom) (GB)
- Shanghai Zhangjiang Laboratory (CN)
- Institute of Automation and Electrometry (RU)
Publication Details
- Journal
- Optics Express
- Published
- 2025-01-16
- DOI
- https://doi.org/10.1364/oe.550534
- Citations
- 1
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 1.25
Funders
- Natural Science Foundation of Shanghai
- National Natural Science Foundation of China
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities