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Updated: Jul 4, 2026

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
Published on: April 24, 2014
Transverse spatial structure of a high Fresnel number Vertical External Cavity Surface Emitting Laser
X Hachair1, S Barbay, T Elsass
1Laboratoire de Photonique et de Nanostructures, CNRS UPR20, Rte de Nozay, 91460 Marcoussis, France.
Abstract:
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.
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