All-optical Switching in Prism Coupling to Semiconductor-Doped Glass Waveguides

G. Assanto, A. Gabel, C. T. Seaton, G. I. Stegeman, C. Ironside, and T. J. Cullen

Electron. Lett. 23, 484-485 (1987)


Optical switching was observed within a pulse train during prism coupling into a nonlinear potassium-ion-exchanged semiconductor-doped-glass waveguide with modified composition. An interpretation of the observed phenomenon is given in terms of a slow (probably thermal) nonlinearity.