We consider a hybrid system consisting of a centrosymmetric photorefractive crystal in contact with a vertical-cavity surface-emitting laser. We numerically investigate the generation and control of cavity solitons (CSs) by propagating a plane wave through electro-activated solitonic waveguides in the crystal. In such a compound scheme, which couples a propagative/conservative field dynamics to a bistable/dissipative one, we show that by changing the electro-activation voltage of the crystal, the CSs can be turned on and shifted with controlled velocity across the device section, on the scale of tens of nanoseconds. The configuration can be exploited for applications to optical information encoding and processing.
© 2012 Optical Society of America
Original Manuscript: August 21, 2012
Manuscript Accepted: September 29, 2012
Published: November 9, 2012
Lorenzo Columbo, Carlo Rizza, Massimo Brambilla, Franco Prati, and Giovanna Tissoni, "Controlling cavity solitons by means of photorefractive soliton electro-activation," Opt. Lett. 37, 4696-4698 (2012)