Title :
Optical tristability and associated ternary digital functions using a twin-stripe laser diode
Author :
Watanabe, Masanobu ; Mukai, Seiji ; Itoh, Hayato ; Yajima, Hiroyoshi
Author_Institution :
Electrotech. Lab., Tsukuba, Japan
fDate :
2/1/1988 12:00:00 AM
Abstract :
Optical tristability and associated ternary digital functions are demonstrated with positive feedback circuit composed of a twin-stripe laser diode, a p-i-n photodiode, and a transistor. Desired functions can be selected without changing the basic structure simply by adjusting circuit parameters. A novel nonlinearity in the light-current characteristics of the twin-stripe laser diode is the key point in realising the ternary digital functions
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; optical bistability; optical information processing; semiconductor junction lasers; GaAs-AlGaAs; light-current characteristics; optical tristability; p-i-n photodiode; positive feedback circuit; semiconductor; ternary digital functions; transistor; twin-stripe laser diode;
Journal_Title :
Optoelectronics, IEE Proceedings J
