kW-class direct diode laser for sheet metal cutting based on commercial pump modules

被引：3
|
作者：
Witte, U. [1 ]
Schneider, F. [1 ]
Holly, C. [2 ]
Di Meo, A. [1 ]
Rubel, D. [1 ]
Boergmann, F. [1 ]
Traub, M. [1 ]
Hoffmann, D. [1 ]
Drovs, S. [3 ]
Brand, T. [3 ]
Unger, A. [3 ]
机构：
[1] Fraunhofer Inst Laser Technol, Steinbachstr 15, D-52074 Aachen, Germany
[2] Rhein Westfal TH Aachen, Chair Laser Technol, D-52056 Aachen, Germany
[3] DILAS Diodenlaser GmbH, Galileo Galilei Str 10, D-55129 Mainz, Germany
来源：
HIGH-POWER DIODE LASER TECHNOLOGY XV | 2017年 / 10086卷
关键词：
Diode lasers; Diode laser arrays; Laser beam combining; DWDM; High brightness; Fiber coupling; Ultrasteep dielectric filters; Laser materials processing;
D O I：
10.1117/12.2252145
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a direct diode laser with an optical output power of more than 800 W ex 100 mu m with an NA of 0.17. The system is based on 6 commercial pump modules that are wavelength stabilized by use of VBGs. Dielectric filters are used for coarse and dense wavelength multiplexing. Metal sheet cutting tests were performed in order to prove system performance and reliability. Based on a detailed analysis of loss mechanisms, we show that the design can be easily scaled to output powers in the range of 2 kW and to an optical efficiency of 80%.
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页数：13
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