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	Laser processing apparatus and method
	KANGASTUPA, JARNO; SALOKATVE, ARTO
	2019-07-04
著作权人	CORELASE OY
专利号	WO2019129917A1
国家	世界知识产权组织
文献子类	发明申请
其他题名	Laser processing apparatus and method
英文摘要	The invention concerns an apparatus and its use for laser welding. A laser welding apparatus comprises at least one first laser device (30), each providing at least one first optical feed fiber (32) with a first laser beam; at least one second laser device (31), each providing at least one second optical feed fiber (33) with a second laser beam; means for generating a composite laser beam comprising a first output laser beam and a second output laser beam (2) for welding a workpiece (21); wherein the first output laser beam has a circular cross-section and the second output laser beam (2) has an annular shape concentric to the first output laser beam. The second laser device (31) is a fiber laser device or a fiber-coupled laser device. The apparatus is configured to form the second output laser beam (2) at least on the basis of the second laser beam, and the second output laser beam (2) comprises a first wavelength and a second wavelength having difference of at least 10 nanometers, or the second output laser beam (2) has spectrum width of least 10 nanometers.
公开日期	2019-07-04
申请日期	2017-12-29
状态	未确认
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/54846]
专题	半导体激光器专利数据库
作者单位	CORELASE OY
推荐引用方式 GB/T 7714	KANGASTUPA, JARNO,SALOKATVE, ARTO. Laser processing apparatus and method. WO2019129917A1. 2019-07-04.

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