title: Feedback-enhanced bistability in grating coupling into InSb waveguides.
abstract: We show that the bistability obtained through grating coupling into a waveguide with a diffusive nonlinearity is enhanced in the presence of a second counterpropagating guided-wave beam. An integrated device in which a nonlinear distributed-feedback grating is used to retroreflect the incoupled beam is demonstrated.
authors.affiliation: Optical Sciences Center, University of Arizona, Tucson, Arizona 85721, USA.
authors.forename: G
authors.initials: G
authors.lastname: Assanto
authors.forename: J E
authors.initials: JE
authors.lastname: Ehrlich
authors.forename: G I
authors.initials: GI
authors.lastname: Stegeman