Transverse spatial structure of a high Fresnel number Vertical External Cavity Surface Emitting Laser

Transverse spatial structure of a high Fresnel number Vertical External Cavity Surface Emitting Laser

The transverse spatial structure of an optically-pumped, Vertical External Cavity Surface Emitting Laser is investigated experimentally. The Fresnel number of the laser cavity is controlled with an intracavity lens. We show how the emission profile changes when passing from a low to a high Fresnel n...

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Veröffentlicht in:Optics express 2008-06, Vol.16 (13), p.9519-9527
Hauptverfasser: Hachair, X, Barbay, S, Elsass, T, Sagnes, I, Kuszelewicz, R
Format: Artikel
Sprache:eng
Schlagworte:
Computer Simulation
Equipment Design
Equipment Failure Analysis
Lasers
Lenses
Light
Models, Theoretical
Refractometry - instrumentation
Scattering, Radiation
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Zusammenfassung:The transverse spatial structure of an optically-pumped, Vertical External Cavity Surface Emitting Laser is investigated experimentally. The Fresnel number of the laser cavity is controlled with an intracavity lens. We show how the emission profile changes when passing from a low to a high Fresnel number configuration and analyze the RF spectrum of the total laser intensity. Though the laser operates in a multi-longitudinal mode configuration, the transverse profile of the laser emission shows well organized patterns.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.16.009519