Title :
High gain and very sensitive light-to-light transducer
Author :
Sasaki, A. ; Noda, S.
Author_Institution :
Dept. of Electr. Eng., Kyoto Univ., Japan
Abstract :
A light-to-light transducer with a very high optical gain of -6*10/sup 15/ and high sensitivity with a minimum detectable power of 7 nW has been achieved by the direct and vertical integration of a heterojunction phototransistor and a laser diode and by the utilization of internal optical feedback. The device can be utilized as a very sensitive sensor which can emit a large optical output. It will also be a key device for future optical signal processing and optical computing.<>
Keywords :
feedback; integrated optoelectronics; optical bistability; optical information processing; optical switches; photodetectors; phototransistors; 7 nW; direct integration; heterojunction phototransistor; high optical gain; high sensitivity; internal optical feedback; laser diode; light-to-light transducer; minimum detectable power; optical computing; optical signal processing; optoelectronic integrated device; vertical integration; Diode lasers; Heterojunctions; Integrated optics; Optical devices; Optical feedback; Optical sensors; Optical signal processing; Phototransistors; Stimulated emission; Transducers;
Conference_Titel :
Solid-State Sensors and Actuators, 1991. Digest of Technical Papers, TRANSDUCERS '91., 1991 International Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-87942-585-7
DOI :
10.1109/SENSOR.1991.148862
