10 May 2012 Delay induces motion of multipeak localized structures in cavity semiconductors
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Abstract
We consider a broad area vertical-cavity surface-emitting laser (VCSEL) subject to injection and to time-delayed feedback. We show that near the nascent optical bistability regime, the space-time dynamics of this device is described by a generalized Swift-Hohenberg equation with delay. We classify different regime of stability of the homogeneous steady states in terms of dynamical parameters. We show that the delay modifies strongly the stability domain of both periodic and localized structures solutions. Finally, we show that the delay feedback induces a spontaneous motion of bright peaks in one and in two-dimenional transverse plane. Bifurcation diagram associated with these localized structures is constructed.
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E. Averlant, E. Averlant, M. Tlidi, M. Tlidi, A. G. Vladimirov, A. G. Vladimirov, H. Thienpont, H. Thienpont, K. Panajotov, K. Panajotov, } "Delay induces motion of multipeak localized structures in cavity semiconductors", Proc. SPIE 8432, Semiconductor Lasers and Laser Dynamics V, 84321D (10 May 2012); doi: 10.1117/12.921867; https://doi.org/10.1117/12.921867
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