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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
URN:urn:nbn:de:kobv:517-opus4-402140
Publication series (Volume number):Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (383)
Publication type:Postprint
Language:English
Date of first publication:2017/10/19
Publication year:2017
Publishing institution:Universität Potsdam
Release date:2017/10/19
Number of pages:6
Source:Optics express 25 (2017) Nr. 13, S. 14317-14322. - DOI: 10.1364/OE.25.014317
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
DDC classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Peer review:Referiert
Publishing method:Open Access
License (German):License LogoKeine öffentliche Lizenz: Unter Urheberrechtsschutz
External remark:Bibliographieeintrag der Originalveröffentlichung/Quelle
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