激光技术2024，Vol.48Issue(4)：470-476,7.DOI:10.7510/jgjs.issn.1001-3806.2024.04.003
基于合束的500W蓝光半导体激光模块化研究
Research on modularization of 500 W blue semiconductor laser based on beam combination
胡烜瑜 1郑皞翾 1郑毅 1段长城 1肖瑜 1徐刚 1唐霞辉1
作者信息
- 1. 华中科技大学光学与电子信息学院,武汉 430074,中国
- 折叠
摘要
Abstract
In order to meet the needs in thigh-reflecting copper welding and metal 3-D printing in aerospace and new energy vehicle battery manufacturing,a 500 W blue semiconductor laser module based on four 150 W array blue light units was developed by using spatial beam combining and polarization beam combining methods.Spatial beam combining technology has been used to independently compress the spot on the fast and slow axis to eliminate luminescent dead zone.Using polarization beam combining technique,we can successfully combine 4 independent light-emitting arrays into one single beam,increasing power density without deteriorating the beam quality or the divergence angle.In addition,a specific water-cooling system for the blue laser module was designed to meet the stability working condition for various industrial applications.Finally,thanks to the method above with the beam combining efficiency of 81.3％,a 501 W output with power fluctuations less than 0.7％,a fast(slow)-axis divergence angle of 0.4°(0.02°)has been obtained.In the follow-up research,one may expect the development of 4 kW-level high-power blue semiconductor lasers with coupled in optical fiber for output.关键词
激光光学/蓝光半导体激光器/光束整形/空间合束/偏振合束Key words
laser optics/blue semiconductor laser/beam shaping/spatial combining/polarization combining分类
信息技术与安全科学引用本文复制引用
胡烜瑜,郑皞翾,郑毅,段长城,肖瑜,徐刚,唐霞辉..基于合束的500W蓝光半导体激光模块化研究[J].激光技术,2024,48(4):470-476,7.
