TY  - JOUR
A1  - Niebuhr, Mario
A1  - Heuer, Axel
T1  - Phase measurement and far-field reconstruction on externally coupled laser diode arrays
T2  - 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
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/40213
SN  - 1094-4087
VL  - 25
IS  - 13
SP  - 14317
EP  - 14322
PB  - Optical Society of America
CY  - Washington, DC
ER  -