Volume 87, Number 4, August 2009
|Number of page(s)||5|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||15 September 2009|
Direct observation of the class-B to class-A transition in the dynamical behavior of a semiconductor laser
Thales Research & Technology France - RD 128, 91767 Palaiseau Cedex, France, EU
2 Institut de Physique de Rennes, CNRS-Université de Rennes I - 35042 Rennes Cedex, France, EU
3 Laboratoire de Photonique et de Nanostructures, CNRS - 91460 Marcoussis, France, EU
4 Laboratoire Aimé Cotton, CNRS-Université Paris Sud 11 - 91405 Orsay Cedex, France, EU
Corresponding author: Fabien.Bretenaker@lac.u-psud.fr
Accepted: 14 August 2009
The transition between the class-B and class-A dynamical behaviors of a semiconductor laser is directly observed by continuously controlling the lifetime of the photons in a cavity of sub-millimetric to centimetric length. It is experimentally and theoretically proved that the transition from a resonant to an overdamped behavior occurs progressively, without any discontinuity. In particular, the intermediate regime is found to exhibit features typical from both the class-A and class-B regimes. The laser intensity noise is proved to be a powerful probe of the laser dynamical behavior.
PACS: 42.55.Ah – General laser theory / 42.60.Mi – Dynamical laser instabilities; noisy laser behavior / 05.40.Ca – Noise
© EPLA, 2009
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