TY  - GEN
A1  - Niebuhr, Mario
A1  - Heuer, Axel
T1  - Phase measurement and far-field reconstruction on externally coupled laser diode arrays
N2  - 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.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 383 
Y1  - 2017
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/40214
UR  - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-402140
ER  -