{"title":"二极管抽运碱蒸气放大器的实验研究及三维多物理场建模","authors":"Huizi Zhao, Rui Wang, Zining Yang, Weiqiang Yang, Hongyan Wang, Weihong Hua, Xiaojun Xu","doi":"10.1007/s00340-025-08494-z","DOIUrl":null,"url":null,"abstract":"<div><p>Diode pumped alkali vapor amplifiers have a great potential to achieve laser power scaling with high beam quality. A three-dimensional multi-physics model including heat transfer, fluid dynamics, gas dynamics, and wave optics was established to simulate the performance of the diode pumped alkali amplifier. Comparison with experiments proves the model to be more accurate than the classical three-level model with a temperature averaging assumption. Using the three-dimensional multi-physics model, the effect of heat deposition on amplification and beam quality is well described. Additionally, the thermal variations in the vapor cell, the near and far fields of the output laser intensity, and the amplifier performance at lower flow rates are analyzed by the model. This model is of great significance for the performance design and optimization of amplifiers.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 7","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Experimental study and 3-D multiphysics modeling of a diode-pumped alkali vapor amplifier\",\"authors\":\"Huizi Zhao, Rui Wang, Zining Yang, Weiqiang Yang, Hongyan Wang, Weihong Hua, Xiaojun Xu\",\"doi\":\"10.1007/s00340-025-08494-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Diode pumped alkali vapor amplifiers have a great potential to achieve laser power scaling with high beam quality. A three-dimensional multi-physics model including heat transfer, fluid dynamics, gas dynamics, and wave optics was established to simulate the performance of the diode pumped alkali amplifier. Comparison with experiments proves the model to be more accurate than the classical three-level model with a temperature averaging assumption. Using the three-dimensional multi-physics model, the effect of heat deposition on amplification and beam quality is well described. Additionally, the thermal variations in the vapor cell, the near and far fields of the output laser intensity, and the amplifier performance at lower flow rates are analyzed by the model. This model is of great significance for the performance design and optimization of amplifiers.</p></div>\",\"PeriodicalId\":474,\"journal\":{\"name\":\"Applied Physics B\",\"volume\":\"131 7\",\"pages\":\"\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-06-08\",\"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/s00340-025-08494-z\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics B","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1007/s00340-025-08494-z","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}
Experimental study and 3-D multiphysics modeling of a diode-pumped alkali vapor amplifier
Diode pumped alkali vapor amplifiers have a great potential to achieve laser power scaling with high beam quality. A three-dimensional multi-physics model including heat transfer, fluid dynamics, gas dynamics, and wave optics was established to simulate the performance of the diode pumped alkali amplifier. Comparison with experiments proves the model to be more accurate than the classical three-level model with a temperature averaging assumption. Using the three-dimensional multi-physics model, the effect of heat deposition on amplification and beam quality is well described. Additionally, the thermal variations in the vapor cell, the near and far fields of the output laser intensity, and the amplifier performance at lower flow rates are analyzed by the model. This model is of great significance for the performance design and optimization of amplifiers.
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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