https://doi.org/10.1140/epjd/e2010-00111-y
Spontaneous motion of cavity solitons in vertical-cavity lasers subject to optical injection and to delayed feedback
1
Department of Applied Physics and Photonics
(IR-TONA), Vrije Unversiteit Brussels, Pleinlaan 2, 1050 Brussels, Belgium
2
Optique Nonlinéaire Théorique, Université Libre de
Bruxelles (U.L.B.), CP 231, Campus Plaine, 1050 Bruxelles, Belgium
Corresponding author: a kpanajot@b-phot.org
Received:
27
November
2009
Revised:
11
February
2010
Published online:
26
April
2010
We consider a rate equation model describing broad area vertical-cavity surface-emitting lasers subject to injection and to time-delayed optical feedback. We show that the inclusion of an external cavity affects dramatically the space-time behavior of this system by modifying the instability threshold as well as the wavelength of the Turing instability. We show also that the delayed feedback is responsible for the appearance of traveling wave instability. Finally, we demonstrate that a single cavity soliton exhibits a spontaneous motion with a constant velocity. Without delayed feedback transition to the moving cavity soliton does not exist.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2010