工业用大功率固体激光加工系统  

High-Power Laser Processing System for Industry Application

作　　者：李强[1] 姜梦华[1] 雷訇[1] 王金国[1] 于振声 郭江[1] 左铁钏[1] 

机构地区：[1]北京工业大学激光工程研究院,北京100124

出　　处：《中国激光》2008年第11期1847-1852,共6页Chinese Journal of Lasers

基　　金：北京市重点技术创新项目(jcj1z2001-1019);国家自然科学基金(60678014)资助课题

摘　　要：报道了一种符合工业应用的国产化大功率固体激光加工系统。大功率连续Nd∶YAG激光器采用对称放置方式四棒串接谐振腔,得到大于2100 W的稳定功率输出,光束参数积24 mm·mard,系统总光电转换效率达到3.5%;激光器的输出激光采用芯径600μm的光纤传输。对激光加工系统的关键问题进行了分析,包括大功率固体激光器在保证光束质量的条件下大功率输出、高效率光纤耦合输出、适应加工要求的控制系统等。研制的系统在实际应用中表明:加工系统稳定、可靠,操作方便,可与机械手、机床等外设联接,满足工业应用的要求。A home made high power laser processing system for industry application is reported. The symmetrical parallel plane four-rod series resonator CW Nd ： YAG laser with krypton lamp-pumped has been developed, the output power is more than 2100 W with beam parameter product of 24 mm · mrad. The total electro optics efficiency of system with lamp pumped YAG crystal is as high as 3.5 %. The output laser is transmission with 600 μm core diameter fiber. The key factors, such as high-power laser output, high efficiency fiber coupling and controlling system of adaptive processing at the premise that the high power laser processing system guarantees the beam quality, are analyzed. It is conclusion that the laser processing machine is a stability, fastness, operating convenience system. The system can connect with moving components, such as robot and machine, and meet the processing requirements of industry application.

关 键 词：激光加工 大功率激光加工系统 ND:YAG激光器 光束质量 光纤耦合 

分 类 号：TN241[电子电信—物理电子学]