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Proceedings Paper

The dynamic behavior of a semiconductor ring laser
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Paper Abstract

We review theoretical results on the dynamics of solitary single longitudinal mode and single transversal mode semiconductor ring lasers. These analyses are based on a rate equation model for the slowly varying envelopes of the counter-propagating fields in the ring cavity which has been proposed by Sorel et al. [Opt. Lett. 27, 1992 (2002); IEEE J. Quantum Electron. 39, 1187 (2003)]. The model shows several operating regimes. The lasers are found to operate bidirectionally up to twice the threshold, where unidirectional operation starts. Just above threshold, the lasers operate in a regime where the two counterpropagating modes are continuous wave, while as the injected current is increased, a regime appears where the intensities of the two counterpropagating modes undergo alternate sinusoidal oscillations. To understand these dynamical features, we discuss a reduction of this basic rate equation model derived by Van der Sande et al. [accepted for publication in J. Phys. B (2008)]. The reduction has been achieved using asymptotic methods based on the typical relative scaling of the dynamical time scales of the system. Physical conditions for the emergence of the operating regimes are assessed quantitatively in terms of nonlinear (saturation processes) and linear coupling (backscattering) between the counter-propagating modes.

Paper Details

Date Published: 8 May 2008
PDF: 8 pages
Proc. SPIE 6997, Semiconductor Lasers and Laser Dynamics III, 699718 (8 May 2008); doi: 10.1117/12.781503
Show Author Affiliations
Guy Van der Sande, Univ. Illes Balears (Spain)
Vrije Univ. Brussel (Belgium)
Lendert Gelens, Vrije Univ. Brussel (Belgium)
Philippe Tassin, Vrije Univ. Brussel (Belgium)
Alessandro Scirè, Univ. Illes Balears (Spain)
Jan Danckaert, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 6997:
Semiconductor Lasers and Laser Dynamics III
Krassimir P. Panajotov; Marc Sciamanna; Angel A. Valle; Rainer Michalzik, Editor(s)

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