{"title":"One-stage hollow-core fiber-based compression of Yb:KGW lasers to the single-cycle regime.","authors":"Z Pi, A B Enders, D Vaso, E Goulielmakis","doi":"10.1364/OL.565432","DOIUrl":null,"url":null,"abstract":"<p><p>The generation of intense, waveform-controlled, single-cycle pulses based on Yb:KGW amplifiers is central to integrating these lasers with attosecond metrology and spectroscopy. Here, we demonstrate single-stage, multi-octave (∼ 2.4 octaves) spectral broadening of Yb:KGW amplified pulses in a neon-pressurized hollow-core fiber (HCF) capillary and their compression to the single-cycle regime (1.1 cycles at 880 nm) using chirped mirrors. Utilizing homochromatic attosecond streaking (HAS), we characterize the field waveforms of the generated pulses and demonstrate precise control of their carrier-envelope phase (CEP). Our results provide a simplified route to single-cycle pulse generation using Yb:KGW technology, previously possible only with Ti:sapphire-based front ends. This work paves the way for advanced applications in attosecond science, strong-field physics, and spectroscopy.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 13","pages":"4174-4177"},"PeriodicalIF":3.1000,"publicationDate":"2025-07-01","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.565432","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
The generation of intense, waveform-controlled, single-cycle pulses based on Yb:KGW amplifiers is central to integrating these lasers with attosecond metrology and spectroscopy. Here, we demonstrate single-stage, multi-octave (∼ 2.4 octaves) spectral broadening of Yb:KGW amplified pulses in a neon-pressurized hollow-core fiber (HCF) capillary and their compression to the single-cycle regime (1.1 cycles at 880 nm) using chirped mirrors. Utilizing homochromatic attosecond streaking (HAS), we characterize the field waveforms of the generated pulses and demonstrate precise control of their carrier-envelope phase (CEP). Our results provide a simplified route to single-cycle pulse generation using Yb:KGW technology, previously possible only with Ti:sapphire-based front ends. This work paves the way for advanced applications in attosecond science, strong-field physics, and spectroscopy.
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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