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Proceedings Paper

Mutual entrainment in delay-coupled nonidentical semiconductor lasers
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Paper Abstract

The dynamics of two mutually coupled but non-identical semiconductor lasers are studied experimentally, numerically and analytically for weak coupling. The lasers have dissimilar relaxation oscillation frequencies and intensities, and their mutual coupling strength is asymmetric. We find that the lasers may entrain to the relaxation oscillation frequency of either one of the lasers. The form of entrainment is a special form of synchronization, called localized synchronization, where one laser exhibits strong oscillations and the other one weak oscillations. We perform a bifurcation analysis to explain the mechanism of entrainment by taking advantage of the inherently large parameters in a semiconductor laser, the linewidth enhancement factor (alpha) and the ratio of the carrier and photon lifetime T.

Paper Details

Date Published: 6 June 1997
PDF: 17 pages
Proc. SPIE 2994, Physics and Simulation of Optoelectronic Devices V, (6 June 1997); doi: 10.1117/12.275615
Show Author Affiliations
Angela Hohl-AbiChedid, Air Force Phillips Lab. (United States)
Athanasios Gavrielides, Air Force Phillips Lab. (United States)
Thomas Erneux, Univ. Libre de Bruxelles (Belgium)
Vassilios Kovanis, Air Force Phillips Lab. (United States)


Published in SPIE Proceedings Vol. 2994:
Physics and Simulation of Optoelectronic Devices V
Marek Osinski; Weng W. Chow, Editor(s)

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