{"title":"138 mJ 100 Hz 1030 nm nanosecond laser from compact Yb:YAG amplifiers using cascaded large aspect ratio slabs","authors":"Hao Wang, Jing Yang, Xue-Peng Li, Jing-Yu Li, Tian-Li Yang, Lin Han, Ya-Ding Guo, Xiao-Jun Wang, Qin-Jun Peng","doi":"10.1007/s00340-024-08380-0","DOIUrl":null,"url":null,"abstract":"<div><p>A compact high-energy nanosecond (ns) slab Yb:YAG Master Oscillator Power-Amplifier (MOPA) laser system with high beam quality is proposed and demonstrated. The MOPA system consists of a Q-switched rod Yb:YAG oscillator and two cascaded large aspect ratio slab (CLARS) Yb:YAG amplifiers. The oscillator delivers a pulse energy of 2.4 mJ at a pulse repetition rate (PRR) of 100 Hz, with a pulse duration of 52 ns. The seed pulse is then amplified to 138 mJ with a gain factor of 57.5. The experimental data is in good agreement with the numerical simulation. The average beam quality factor <i>β</i> is 1.62. This laser system is applicable in scientific and industrial fields. The layout area of the entire system is only 900 mm × 450 mm.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 2","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-01-11","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/s00340-024-08380-0","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 compact high-energy nanosecond (ns) slab Yb:YAG Master Oscillator Power-Amplifier (MOPA) laser system with high beam quality is proposed and demonstrated. The MOPA system consists of a Q-switched rod Yb:YAG oscillator and two cascaded large aspect ratio slab (CLARS) Yb:YAG amplifiers. The oscillator delivers a pulse energy of 2.4 mJ at a pulse repetition rate (PRR) of 100 Hz, with a pulse duration of 52 ns. The seed pulse is then amplified to 138 mJ with a gain factor of 57.5. The experimental data is in good agreement with the numerical simulation. The average beam quality factor β is 1.62. This laser system is applicable in scientific and industrial fields. The layout area of the entire system is only 900 mm × 450 mm.
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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