Butterfly bistability in grating coupled thin film waveguides

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

Opt. Commun. 75, 441-446 (1990)


A new form of butterfly bistability was obtained in InSb waveguides for the throughput signal when two grating couplers were used, one for in-coupling and one for out-coupling. The nonlinearity was thermal and diffusive.