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Beam Quality Deterioration in Dense Wavelength Beam-Combined Broad-Area Diode Lasers

Haas, Matthias and Rauch, Simon and Nagel, Simon and Beibwanger, Rolf and Dekorsy, Thomas and Zimer, Hagen (2017) Beam Quality Deterioration in Dense Wavelength Beam-Combined Broad-Area Diode Lasers. IEEE Journal of Quantum Electronics, 53 (3), pp. 1-11. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/JQE.2017.2686358 ISSN 0018-9197

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Official URL: http://dx.doi.org/10.1109/JQE.2017.2686358

Abstract

We study various effects of beam quality deterioration in dense wavelength beam-combined direct diode laser systems based on broad-area laser diode bars of different filling factors. We mainly concentrate our research on external cavity architectures, where a transmission grating is used for simultaneous spectral stabilization and beam combining the emitters of a single laser diode bar. In this context, the residual spectral linewidth of the stabilized diode emitters, diode bar smile and spectral emitter crosstalk are the most relevant parameters which influence the resulting beam quality. On the basis of our results, we can deduce a lower limit for the beam quality of dense wavelength beam-combined broad-area diode lasers.

Item URL in elib:https://elib.dlr.de/111980/
Document Type:Article
Title:Beam Quality Deterioration in Dense Wavelength Beam-Combined Broad-Area Diode Lasers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Haas, MatthiasTRUMPF Laser GmbH, Schramberg, Germanyhttps://orcid.org/0000-0003-2375-4326
Rauch, SimonTRUMPF Laser GmbH, Schramberg, GermanyUNSPECIFIED
Nagel, SimonTRUMPF Laser GmbH, Schramberg, GermanyUNSPECIFIED
Beibwanger, RolfTRUMPF Laser GmbH, Schramberg, GermanyUNSPECIFIED
Dekorsy, Thomasinstitute of technical physics, dlrhttps://orcid.org/0000-0003-2257-2854
Zimer, HagenTRUMPF Laser GmbH, Schramberg, GermanyUNSPECIFIED
Date:June 2017
Journal or Publication Title:IEEE Journal of Quantum Electronics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:53
DOI :10.1109/JQE.2017.2686358
Page Range:pp. 1-11
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:0018-9197
Status:Published
Keywords:High-power diode lasers, semiconductor laser arrays, laser beam combining, wavelength-division multiplexing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Dekorsy, Prof. Dr. Thomas
Deposited On:20 Apr 2017 17:51
Last Modified:06 Sep 2019 15:16

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