Title :
Optimisation of MQW structures for acousto-optic absorption modulators
Author :
Gryba, T. ; Lefebvre, J.E.
Author_Institution :
Dept. OAE, Valenciennes Univ., France
fDate :
2/1/1994 12:00:00 AM
Abstract :
A systematic study is presented of a multiple-quantum-well (MQW) acousto-optic modulator. The device utilises the electro-absorptive effects in quantum wells and the electric field induced by surface acoustic waves (SAW). The propagation of SAW in multilayered piezoelectric structures is studied and the electric field is calculated. The optical absorption coefficient in a MQW is calculated as a function of the applied electric field and the MQW parameters. A systematic approach for optimising the performance of a MQW acousto-optic modulator is presented
Keywords :
acousto-optical devices; electroabsorption; integrated optics; optical modulation; optimisation; semiconductor quantum wells; surface acoustic wave devices; surface acoustic waves; MQW acousto-optic modulator; MQW structure optimisation; SAW induced electric field; acousto-optic absorption modulators; electric field; electro-absorptive effects; multilayered piezoelectric structures; multiple-quantum-well; optical absorption coefficient; surface acoustic waves;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19949913
