{"title":"Influence of alignment mismatch in a piecewise hollow-core-fiber system on laser pulse propagation dynamics","authors":"Ding Wang, Yuxin Leng","doi":"10.1007/s00340-025-08556-2","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>A piecewise hollow-core fiber (HCF) consists of two or more segments of HCFs that are in tandem, which can extend the functions of currently widely-used gas-filled HCF compressors. In this work, we present a model to study the influence of misalignment on the pulse propagation dynamics, which includes incident angle deviation and transverse shift between two consecutive segments. In particular, we focus on soliton dynamics involving dispersive wave (DW) emission in vacuum ultraviolet range and sub-cycle pulse generation. It is found that DW emission is more sensitive to incident angle deviation due to shorter wavelengths, and an empirical estimation of the incident angle tolerance is obtained. The tolerance of transverse shift is up to 20 μm in the case studies, which can be met in practice. This work provides insights into the working of a piecewise HCF system that can help to build and analyze such systems.</p>\n </div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 10","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics B","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1007/s00340-025-08556-2","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
A piecewise hollow-core fiber (HCF) consists of two or more segments of HCFs that are in tandem, which can extend the functions of currently widely-used gas-filled HCF compressors. In this work, we present a model to study the influence of misalignment on the pulse propagation dynamics, which includes incident angle deviation and transverse shift between two consecutive segments. In particular, we focus on soliton dynamics involving dispersive wave (DW) emission in vacuum ultraviolet range and sub-cycle pulse generation. It is found that DW emission is more sensitive to incident angle deviation due to shorter wavelengths, and an empirical estimation of the incident angle tolerance is obtained. The tolerance of transverse shift is up to 20 μm in the case studies, which can be met in practice. This work provides insights into the working of a piecewise HCF system that can help to build and analyze such systems.
期刊介绍：
Features publication of experimental and theoretical investigations in applied physics
Offers invited reviews in addition to regular papers
Coverage includes laser physics, linear and nonlinear optics, ultrafast phenomena, photonic devices, optical and laser materials, quantum optics, laser spectroscopy of atoms, molecules and clusters, and more
94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again
Publishing essential research results in two of the most important areas of applied physics, both Applied Physics sections figure among the top most cited journals in this field.
In addition to regular papers Applied Physics B: Lasers and Optics features invited reviews. Fields of topical interest are covered by feature issues. The journal also includes a rapid communication section for the speedy publication of important and particularly interesting results.
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