Title :
Dynamic set and reset operations with a single optical beam for an InGaAsP/InP optoelectronic latching device
Author :
Matsuda, Kenichi ; Shibata, Jun
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
fDate :
5/1/1992 12:00:00 AM
Abstract :
A novel optoelectronic latching device is proposed and demonstrated. The device has a stacked structure consisting of a light-emitting diode (LED) and two heterojunction phototransistors (HPTs). The LED and one of the HPTs are connected electrically in series to form a bistable switch based on optical positive feedback. The other HPT is connected in parallel to the switch for reset operation. A single optical beam modulated with pulse signals is input to both HPTs simultaneously. The optical pulse with a peak power ranging from 7 to 30 mu W turns on the switch, and the pulse with higher optical power turns it off.<>
Keywords :
III-V semiconductors; feedback; gallium arsenide; gallium compounds; indium compounds; integrated optoelectronics; light emitting diodes; optical bistability; optical logic; optical switches; phototransistors; semiconductor switches; 7 to 30 muW; InGaAsP-InP; LED; bistable switch; heterojunction phototransistors; in parallel; in series electrical connections; light-emitting diode; optical modulation; optical positive feedback; optical switches; optoelectronic latching device; peak power; pulse signals; semiconductors; set and reset operations; single optical beam; stacked structure; Heterojunctions; Light emitting diodes; Optical beams; Optical bistability; Optical feedback; Optical modulation; Optical pulses; Optical switches; Phototransistors; Pulse modulation;
Journal_Title :
Photonics Technology Letters, IEEE
