Observation of electro-activated localized structures in broad area   VCSELs
  We demonstrate experimentally the electro-activation of a localized optical structure in a coherently driven broad-area vertical-cavity surface-emitting laser (VCSEL) operated below threshold. Control is achieved by electro-optically steering a writing beam through a pre-programmable switch based on a photorefractive funnel waveguide. 
J. Parravicini, M. Brambilla, L. Columbo, F. Prati, C. Rizza, G.   Tissoni, A. J. Agranat, and E. DelRe
physics.optics