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

M. Wilkens; P. S. Basler; B. Eppich; J. Fricke; A. Ginolas; M. Hübner; P. Crump

doi:10.1117/12.3002553

12 March 2024 High-brightness pumps for fiber lasers based on monolithically grating stabilized diode lasers

M. Wilkens, P. S. Basler, B. Eppich, J. Fricke, A. Ginolas, M. Hübner, P. Crump

Proceedings Volume 12867, High-Power Diode Laser Technology XXII; 128670L (2024) https://doi.org/10.1117/12.3002553
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

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-µm core fiber. An especially simple opto-mechanical configuration is developed, without need for external volume Bragg gratings.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

M. Wilkens, P. S. Basler, B. Eppich, J. Fricke, A. Ginolas, M. Hübner, and P. Crump "High-brightness pumps for fiber lasers based on monolithically grating stabilized diode lasers", Proc. SPIE 12867, High-Power Diode Laser Technology XXII, 128670L (12 March 2024); https://doi.org/10.1117/12.3002553

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