Abstract

Recently, we reported our experimental results on the nonbiased optical bistable devices (NOBDs) using extremely shallow quantum wells (ESQWs) in asymmetric Fabry-Perot (AFP) cavity structure [1,2] and face-to-face double p-i(ESQW)-n diode structure[3], both of which are in symmetric-self electrooptic effect device geometry. We showed many advantageous features of NOBDs, such as low switching energy, high switching speed, simple layout, and perfect electrical isolation in 2-D array. In this study we employ the NOBDs to realise optical logic functional operations. Moreover, we demonstrate the enhanced optical logic functionality utilising feedback signals, which implies the potential applications of NOBDs in optical packet switching system of asynchronous transfer mode.[4]

© 1996 Optical Society of America