Abstract

The nonlinear directional coupler (NLDC) can be used to achieve a number of all-optical signal processing functions that will be required in future switching and routing systems. Particularly attractive would be such a device operating at diode laser wavelengths with the possibility of integration with other optoelectronic components. Previous work on GaAs-based material has demonstrated nonlinear switching in NLDCs at wavelengths near 1 μm.^1,2 In this paper we present results of measurements made on a NLDC fabricated in InP-based material operating close to 1.55 μm, which is to our knowledge the first demonstration of a NLDC suitable for integration at this important wavelength for optical fiber transmission.

© 1990 Optical Society of America