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research article
Eigenmode analysis of phased-coupled VCSEL arrays using spatial coherence measurements
2011
We apply the modal coherence theory to evaluate the spatial mode structure of a 2 × 2 phase-coupled array of vertical cavity surface emitting lasers (VCSELs). The eigenmode structure is extracted for different pump currents by measuring the degree of spatial coherence of all VCSEL pairs in the array. The results reveal the impact of optical disorder and spatial hole burning on the modal discrimination. The approach is useful more generally for the evaluation of spatial mode content of other laser array.
Use this identifier to reference this record
Type
research article
Web of Science ID
WOS:000293888000057
Authors
Publication date
2011
Published in
Volume
36
Issue
15
Start page
2916
End page
2918
Subjects
Peer reviewed
NON-REVIEWED
EPFL units
Available on Infoscience
August 10, 2011