TY  - JOUR
A1  - Niebuhr, Mario
A1  - Heuer, Axel
T1  - Phase measurement and far-field reconstruction on externally coupled laser diode arrays
JF  - Optics express
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.
Y1  - 2017
U6  - https://doi.org/10.1364/OE.25.014317
SN  - 1094-4087
VL  - 25
IS  - 13
SP  - 14317
EP  - 14322
PB  - Optical Society of America
CY  - Washington, DC
ER  - 
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
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-402140
ER  -