Title :
Differential and direction-sensitive detector based on self-electro-optic effect in GaAs multiple quantum well
Author :
Aquino, J.F. ; De Souza, E.A.
Author_Institution :
Inst. de Fisica, Univ. de Brasilia, Brasilia, Brazil
Abstract :
A differential and direction-sensitive device capable of detecting and locating intensity variations with angular resolution is presented. The device consisting of four conventional photodetectors integrated with a pair of GaAs quantum-well modulators measures intensity variations at angles of nπ/4 (n=1, 3, 5, ...) with respect to the x-direction.
Keywords :
III-V semiconductors; angular measurement; electro-optical effects; gallium arsenide; photodetectors; semiconductor quantum wells; GaAs; angular intensity variation; differential detector; direction-sensitive detector; multiple quantum well; photodetectors; quantum-well modulators; self-electro-optic effect;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20053476
