期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 39, 期 9, 页码 2980-2987出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2021.3068822
关键词
Solitons; Laser mode locking; Laser theory; Fiber lasers; Laser stability; Trajectory; Optical fiber dispersion; Fiber lasers; laser mode-locking; timing jitter
资金
- Russian Science Foundation [19-72-10037]
- Russian Ministry of Higher Education and Science (Megagrant Program) [2020-220-08-1369]
- Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN) [320165]
- Russian Ministry of Science and Higher Education, World-class Research Center program: Advanced Digital Technologies [075-15-2020-934]
- Russian Science Foundation [19-72-10037] Funding Source: Russian Science Foundation
Frequency shift in harmonically mode-locked soliton fiber lasers can increase the stability of interpulse interactions and lead to a stable periodic arrangement of pulses. The experimental results confirm the theoretical and numerical predictions of the stabilizing frequency shift effect in these lasers.
Harmonically mode-locked soliton fiber lasers have been intensively investigated in recent years due to their wide range of applications. Drawback of these lasers is relatively large timing jitter which is significantly higher than the timing jitter in lasers operating at fundamental frequency. We report the stabilizing frequency shift effect in harmonic mode-locking ring soliton fiber laser that is studied theoretically and numerically. It is known that a harmonic mode-locking regime in a fiber laser occurs due to interpulse repulsion, which leads to a uniform distribution of pulses in the cavity. We demonstrate that the frequency shift contributes to an increase in the hardness of interpulse interactions and can led to stabilization of the periodic arrangement of pulses. The experiment carried out confirms the theoretical predictions and the results of numerical simulation.
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