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Phase measurement and far-field reconstruction on externally coupled laser diode arrays

  • Passive coherent combination of several discrete low power laser diodes is a promising way to overcome the issue of degrading beam quality when scaling single emitters to > 10W output power. Such systems would be an efficient alternative to current high power sources, yet they suffer from fatal coherence loss when operated well above threshold. We present a new way to obtain detailed coherence information for laser diode arrays using a spatial light modulator to help identify the underlying decoherence processes. Reconstruction tests of the emitted far-field distribution are conducted to evaluate the performance of our setup.

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Metadaten
Author details:Mario NiebuhrORCiDGND, Axel HeuerORCiDGND
DOI:https://doi.org/10.1364/OE.25.014317
ISSN:1094-4087
Pubmed ID:https://pubmed.ncbi.nlm.nih.gov/28789017
Title of parent work (English):Optics express
Publisher:Optical Society of America
Place of publishing:Washington, DC
Publication type:Article
Language:English
Date of first publication:2017/06/26
Publication year:2017
Publishing institution:Universität Potsdam
Release date:2017/10/19
Volume:25
Issue:13
First page:14317
Last Page:14322
Funding institution:Universität Potsdam, Publikationsfonds
Funding number:PA 2017_31
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
DDC classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Peer review:Referiert
Grantor:Publikationsfonds der Universität Potsdam
Publishing method:Open Access
License (German):License LogoKeine öffentliche Lizenz: Unter Urheberrechtsschutz
External remark:Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 383
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