Title :
Optoelectronic exclusive-OR using hybrid integration of phototransistors and vertical cavity surface emitting lasers
Author :
Beyette, Fred R., Jr. ; Geib, K.M. ; St.Clair, C.M. ; Feld, S.A. ; Wilmsen, C.W.
Author_Institution :
Dept. of Electr. Eng., Colorado State Univ., Fort Collins, CO, USA
Abstract :
Heterojunction phototransistors and surface-emitting lasers were used to demonstrate two new optoelectronic circuits that implement the exclusive-OR (XOR) function. One of the circuits also determines which of the two inputs is greater than the other. The XOR gates have high ON/OFF contrast ratios (>28:1) and optical gate gain approximately=3.<>
Keywords :
integrated optoelectronics; laser cavity resonators; optical logic; phototransistors; semiconductor lasers; ON/OFF contrast ratios; XOR function; heterojunction phototransistors; hybrid integration; optical gate gain; optoelectronic exclusive-OR; phototransistors; vertical cavity surface emitting lasers; Circuits; Laser applications; Optical arrays; Optical computing; Phototransistors; Printing; Stimulated emission; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
