{"title":"High peak power and pulse energy Pr:YLF green laser using active Q-switching","authors":"Wei Yuan , Rongfei Huang , Huiying Xu , Zhiping Cai","doi":"10.1016/j.optcom.2025.131571","DOIUrl":null,"url":null,"abstract":"<div><div>We demonstrate continuous-wave (CW) and pulsed laser based on Pr:YLF crystal at 522 nm in this work. In actively Q-switched operation, an acousto-optic modulator (AOM) is used as a modulation switch, a pulsed laser with a tunable repetition rate from 2 kHz to 50 kHz is obtained. The performance of the lasers at different repetition rates is compared at a maximum absorbed pump power of 12.47 W. The maximum average output power, maximum peak power and single pulse energy at the repetition rate of 2 kHz are 258 mW, 3146.3 W, and 129 μJ, respectively, which, to the best of our knowledge, are the maximum values of Q-switched laser at 522 nm reported so far. The power fluctuations at the repetition rates of 2 kHz, 20 kHz and 50 kHz are 4.7%, 4%, 5.8%, respectively. The beam quality factors M<sup>2</sup> at repetition rate of 2 kHz are 1.83 (x) and 1.97 (y), respectively.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"579 ","pages":"Article 131571"},"PeriodicalIF":2.2000,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics Communications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030401825000999","RegionNum":3,"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
We demonstrate continuous-wave (CW) and pulsed laser based on Pr:YLF crystal at 522 nm in this work. In actively Q-switched operation, an acousto-optic modulator (AOM) is used as a modulation switch, a pulsed laser with a tunable repetition rate from 2 kHz to 50 kHz is obtained. The performance of the lasers at different repetition rates is compared at a maximum absorbed pump power of 12.47 W. The maximum average output power, maximum peak power and single pulse energy at the repetition rate of 2 kHz are 258 mW, 3146.3 W, and 129 μJ, respectively, which, to the best of our knowledge, are the maximum values of Q-switched laser at 522 nm reported so far. The power fluctuations at the repetition rates of 2 kHz, 20 kHz and 50 kHz are 4.7%, 4%, 5.8%, respectively. The beam quality factors M2 at repetition rate of 2 kHz are 1.83 (x) and 1.97 (y), respectively.
期刊介绍：
Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.
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