摘要
研制了一种单光纤耦合的柔性半导体激光加工光源,该光源由20个传导热沉封装的激光列阵以线阵合束方式耦合而成,在大通道工业水冷条件下,从600μm芯径、NA为0.2的光纤中连续输出907 W功率,输出光束质量为47 mm·mrad,最终达到工件表面的功率密度为3.21×105W/cm2,最大插头效率达39%。该激光光源具有直接应用在金属薄板焊接的潜力。
A high power fiber-coupled flexible source is fabracated in which 20 conduction cooled diode laser bars were intergrated in manner of linear array coupling.Under the macrochannel cooling with industrial water,a CW output power of 907 W,a beam parameter product of 47 mm.mrad,an optical power density of 3.21 ×10^5 W/cm^2 and a maximum wall-plug efficiency of 39% on the work piece are demonstrated from a 600 μm,NA 0.2 fiber.This source has a great potential to be directly adapted in materials processing,especially in metal sheet welding.
出处
《发光学报》
EI
CAS
CSCD
北大核心
2012年第8期895-900,共6页
Chinese Journal of Luminescence
基金
吉林省科技厅重大项目(10ZDGG001,20112106)
院地合作项目(2011CJT0003)
科技部课题(2012AA040210)资助项目
关键词
半导体激光
线阵合束
光纤耦合
柔性加工光源
diode laser
linear array coupling
fiber-coupled
flexible processing source
