For water-cooled fiber lasers, humidity and the resulting water-condensation has always been the biggest threat for laser reliability or power degradation, especially when used in harsh industrial environment. Here we present an innovative fiber laser packaging method featuring cast aluminum frame and an almost screw-free exterior packaging. A CW fiber laser with 1.5KW laser output power in such a compact and light-weight package has been demonstrated with an excellent beam quality and power stability for industry applications.
Jianwu Ding and Jinhui Liu, "A low cost hermetic packaging for high power industry fiber lasers," Proc. SPIE 10513, Components and Packaging for Laser Systems IV, 105130T (Presented at SPIE LASE: February 01, 2018; Published: 20 February 2018); https://doi.org/10.1117/12.2285256.
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