Feedback-enhanced bistability in grating coupling into InSb waveguides.
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.
Assanto
G
G
Optical Sciences Center, University of Arizona, Tucson, Arizona 85721, USA.
Ehrlich
J E
JE
Stegeman
G I
GI