Influence of thermal population of lower laser levels on the performance of end-side-pumped Ce:Nd:YAG solar laser

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-10-01 DOI:10.1117/1.JPE.12.044501

S. Payziyev, A. Sherniyozov

引用次数: 2

Abstract

Abstract. We report the results of a theoretical study of the combined end-side pumped solar lasers to solve the problem associated with a recent experimental finding where the unexpected underperformance of the Ce doped Nd:YAG lasers in comparison to pure Nd:YAG lasers was observed. For this, we have developed a theoretical model based on space-dependent rate equations, which considers the effect of the thermal population of the laser levels on the laser output. It is shown that the main reason for the lower laser performance of recently experimentally realized Ce:Nd:YAG solar laser in the end-pumped regime and the fracture of the Ce:Nd:YAG rod at the process is the excessively high thermal load on the end of the laser rod. As a result of our study, we propose easily-feasible solutions based on optimal pumping and cooling configurations. The results of this study also demonstrate that under the necessary conditions, using Ce:Nd:YAG as an alternative to Nd:YAG in the combined end-side pumping configuration could increase the laser output by more than 1.5 times.

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低能级热密度对端侧泵浦Ce:Nd:YAG太阳能激光器性能的影响

摘要我们报道了一项对组合端侧泵浦太阳能激光器的理论研究结果，以解决与最近的一项实验发现相关的问题，在该实验发现中，与纯Nd:YAG激光器相比，Ce掺杂的Nd:YAG激光表现不佳。为此，我们开发了一个基于空间相关速率方程的理论模型，该模型考虑了激光能级的热布居对激光输出的影响。结果表明，最近实验实现的Ce:Nd:YAG太阳激光器在端泵浦状态下激光性能较低以及在此过程中Ce:Nd:YAG棒断裂的主要原因是激光棒端部的热负荷过高。根据我们的研究结果，我们提出了基于最佳泵送和冷却配置的简单可行的解决方案。本研究的结果还表明，在必要的条件下，在端侧组合泵浦配置中使用Ce:Nd:YAG作为Nd:YAG的替代品，可以将激光输出提高1.5倍以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.