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

Authors:Paulau, P. V.
Gomila, Damià
Ackemann, Thorsten
Loiko, N. A.
Firth, William J.
Keywords:Bifurcation, Laser cavity resonators, Laser feedback, Optical solitons, Spatiotemporal phenomena, Surface emitting lasers, [PACS] Optical solitons; nonlinear guided waves, [PACS] Optical propagation, scattering, and losses in fibers; solitons
Issue Date:28-Jul-2008
Publisher:American Physical Society
Citation:Physical Review E 78(1): 016212 (2008)
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.
Description:7 pages, 8 figures.-- PACS nrs.: 42.65.Tg; 42.81.Dp.
URI:http://hdl.handle.net/10261/12861
ISSN:1063-651X (Print)
1095-3787 (Online)
???metadata.dc.identifier.doi???:10.1103/PhysRevE.78.016212
Appears in Collections:(IFISC) Artículos

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