Feedback enhanced bistability in grating coupling into InSb waveguides

G. Assanto, J. E. Ehrlich, and G. I. Stegeman

Opt. Lett. 15, 411-413 (1990)


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.