High brightness pumps for fiber lasers based on monolithically grating stabilized diode lasers

被引：0
|
作者：
Wilkens, M. [1 ]
Basler, P. S. [1 ]
Eppich, B. [1 ]
Fricke, J. [1 ]
Ginolas, A. [1 ]
Huebner, M. [1 ]
Crump, P. [1 ]
机构：
[1] Leibniz Inst Hochstfrequenztechn, Ferdinand Braun Inst GmbH, Gustav Kirchhoff Str 4, D-12489 Berlin, Germany
来源：
HIGH-POWER DIODE LASER TECHNOLOGY XXII | 2024年 / 12867卷
关键词：
laser stacks; fiber laser pump modules; DBR lasers; monolithic grating stabilization;
D O I：
10.1117/12.3002553
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Innovation in diode laser design and technology, assembly techniques and optical design are used to realize high-brightness pump modules for application in pumping of fiber lasers. In a first demonstration, monolithically grating-stabilized diode lasers with wavelength around 970 nm are integrated into prototype modules that deliver 500 W of continuous wave TE-polarized optical power at a conversion efficiency > 55% within a spectral width of 1.2 nm (95% power) in a narrow beam, suitable for low-loss coupling into a 200-mu m core fiber. An especially simple opto-mechanical configuration is developed, without need for external volume Bragg gratings.
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页数：8
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