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Optics Letters

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  • Vol. 36, Iss. 15 — Aug. 1, 2011
  • pp: 2916–2918

Eigenmode analysis of phased-coupled VCSEL arrays using spatial coherence measurements

Elodie Lamothe, Lars D. A. Lundeberg, and Eli Kapon  »View Author Affiliations


Optics Letters, Vol. 36, Issue 15, pp. 2916-2918 (2011)
http://dx.doi.org/10.1364/OL.36.002916


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Abstract

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.

© 2011 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(030.4070) Coherence and statistical optics : Modes
(140.3290) Lasers and laser optics : Laser arrays
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(140.3295) Lasers and laser optics : Laser beam characterization
(140.3325) Lasers and laser optics : Laser coupling

ToC Category:
Coherence and Statistical Optics

History
Original Manuscript: April 27, 2011
Revised Manuscript: July 4, 2011
Manuscript Accepted: July 4, 2011
Published: August 1, 2011

Citation
Elodie Lamothe, Lars D. A. Lundeberg, and Eli Kapon, "Eigenmode analysis of phased-coupled VCSEL arrays using spatial coherence measurements," Opt. Lett. 36, 2916-2918 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-15-2916


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