Advances in G-stack diode laser using macro-channel water cooling and high thermal conductivity material packaging

Han, Yongqin; Sun, Lichen; Fu, Tuanwei; Gao, Lijun; Zheng, Yanfang; Chen, Yunzhu; Zhang, Xiaojuan; Yan, Minna; Zhao, Sicheng; Yang, Kai; Gao, Lei; Zah, Chung−En; Liu, Xingsheng

doi:10.1117/12.2582695

Cited by 1 publication

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“…One of the key reliability factor of the high power fiber lasers has always been the thermal management, especially on the ever higher power pump diodes and the other optical components. There have been many innovative cold plate design to provide efficient cooling to these high power components 1,2,3,4 . However, there are still two realistic open issues: 1. the water chillers and fiber lasers today are working completely independent, instead of a close-loop actively-adjusting system which ensure the laser always working at the best design temperature for reliability and longevity; 2. the water contamination problem and thus reduced cooling performance associated with water chillers.…”

Section: Introductionmentioning

confidence: 99%

High efficiency active air cooled (AAC) 12kw fiber laser system

Meng,

Yang,

Zhang

et al. 2024

Components and Packaging for Laser Systems X

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12kw fiber laser has become the new industrial laser standard being widely used in sheet metal cutting, laser cladding, laser welding and many other industrial applications. The most common failure associated with such high power fiber laser is the thermally-induced component failure, including the laser chip failure resulting in power degradation, the high power pump diode failure from insufficient cooling, to fiber component failure from overheat, etc. Here we present an innovative Active Air Cooled 12kw fiber laser system with the build-in closed-loopcontrolled waterless cooling system, not only improve the component and the overall laser reliability but also improve the overall system electric-optical efficiency by as much as 30%.

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Section: Introductionmentioning

confidence: 99%