Room temperature high-power TEM00 mode beam from bulk solid-state laser without water cooling

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2024-09-10 DOI:10.1016/j.optlastec.2024.111630

引用次数: 0

Abstract

Obtaining high power, high beam quality, and high efficiency laser sources has always been one of the important development goals in solid-state laser technology. However, up to now, hundred-watt TEM₀₀ mode (large-volume) beams directly from simple solid-state lasers without liquid cooling are not available. To overcome these challenges, here we propose a new approach based on the principle of low thermal effect and the power superposition method. By doing so, at room temperature, a 131 W TEM₀₀ mode is obtained from the simplest Nd:YAG laser. Importantly, the laser can work stably for a long time (root mean square: 0.307 % over 3 h), and the gain medium is cooled by a fan. This demonstration promises to upgrade high-power and high beam quality applications for solid-state laser sources.

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无水冷散装固体激光器发出的室温高功率 TEM00 模式光束

获得高功率、高光束质量和高效率的激光源一直是固体激光技术的重要发展目标之一。然而，到目前为止，还无法直接从简单的固体激光器中获得无需液体冷却的百瓦 TEM00 模式（大体积）光束。为了克服这些挑战，我们在此提出了一种基于低热效应原理和功率叠加法的新方法。这样，在室温下，最简单的 Nd:YAG 激光器就能产生 131 W 的 TEM00 模式。重要的是，该激光器可长时间稳定工作（3 小时内均方根为 0.307%），增益介质由风扇冷却。该演示有望提升固态激光源的高功率和高光束质量应用。

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

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems