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Self-localized structures in vertical-cavity surface-emitting lasers with external feedback

Paulau, P.V. and Gomila, D. and Ackemann, T. and Loiko, N.A. and Firth, W.J. (2008) Self-localized structures in vertical-cavity surface-emitting lasers with external feedback. Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 78 (1). 016212-016212. ISSN 1063-651X

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Abstract

In this paper, we analyze a model of broad area vertical-cavity surface-emitting lasers subjected to frequency-selective optical feedback. In particular, we analyze the spatio-temporal regimes arising above threshold and the existence and dynamical properties of cavity solitons. We build the bifurcation diagram of stationary self-localized states, finding that branches of cavity solitons emerge from the degenerate Hopf bifurcations marking the homogeneous solutions with maximal and minimal gain. These branches collide in a saddle-node bifurcation, defining a maximum pump current for soliton existence that lies below the threshold of the laser without feedback. The properties of these cavity solitons are in good agreement with those observed in recent experiments.

Item type: Article
ID code: 19564
Keywords: vertical-cavity surface-emitting lasers, VCSELs, Optics. Light, Physics and Astronomy(all), Mathematical Physics, Statistical and Nonlinear Physics, Condensed Matter Physics
Subjects: Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Depositing user: Strathprints Administrator
Date Deposited: 01 Jun 2010 09:08
Last modified: 21 May 2015 11:48
URI: http://strathprints.strath.ac.uk/id/eprint/19564

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