{"title":"Stochastic collapse and recovery of optical solitons in harmonic mode-locked lasers under pump perturbations.","authors":"Benhai Wang, Xiaocong Wang, Wenbin He, Xintong Zhang, Qi Huang, Jiachen Wu, Haochen Lin, Yu Jiang, Ruchen Lv, Shunxian Luo, Meng Pang","doi":"10.1364/OL.571324","DOIUrl":null,"url":null,"abstract":"<p><p>Harmonically mode-locked soliton fiber laser can host an ensemble of identical solitons in parallel, providing a unique many-body system for exploring the intrinsic stochasticity of soliton dynamics in nonlinear optical systems. We report in this work the experimental observation of parallel soliton dynamics under homogeneous perturbation in a harmonically mode-locked fiber laser. Given an abrupt and transient decrease in the pump power, the parallel solitons exhibit evolution trajectories of probabilistic nature, featuring prominent re-distribution of soliton energies followed by random collapse and recovery after the perturbation. We investigate statistical dependences of the soliton collapse upon the perturbation parameters, while revealing threshold behaviors of the recovery dynamics. This work provides unique insight into the stochasticity of the nonlinear soliton evolution in mode-locked fiber lasers and may help to improve laser stability.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6145-6148"},"PeriodicalIF":3.3000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.571324","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Harmonically mode-locked soliton fiber laser can host an ensemble of identical solitons in parallel, providing a unique many-body system for exploring the intrinsic stochasticity of soliton dynamics in nonlinear optical systems. We report in this work the experimental observation of parallel soliton dynamics under homogeneous perturbation in a harmonically mode-locked fiber laser. Given an abrupt and transient decrease in the pump power, the parallel solitons exhibit evolution trajectories of probabilistic nature, featuring prominent re-distribution of soliton energies followed by random collapse and recovery after the perturbation. We investigate statistical dependences of the soliton collapse upon the perturbation parameters, while revealing threshold behaviors of the recovery dynamics. This work provides unique insight into the stochasticity of the nonlinear soliton evolution in mode-locked fiber lasers and may help to improve laser stability.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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