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.
Author details: | Mario NiebuhrORCiDGND, Axel HeuerORCiDGND |
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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): | Keine öffentliche Lizenz: Unter Urheberrechtsschutz |
External remark: | Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 383 |