Abstract
All-optical switching devices are of considerable interest for future high-bit-rate systems applications. Ultrafast switching rates can be achieved by utilizing very rapid (electronic) optical nonlinearities, but these nonlinearities are relatively weak and require high power. By using waveguide geometries, peak power requirements can be reduced; and by fabricating switches from transparent materials, thermal limitations can be avoided. One promising device concept which satisfies these criteria is the nonlinear directional coupler,1,2 We report the first demonstration of femtosecond switching in such a nonlinear coupler switch.
© 1988 Optical Society of America
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