Accession Number : ADP007414

Title :   All-Optical, High-Contrast Asymmetric Fabry-Perot Modulator,

Corporate Author : TRINITY COLL DUBLIN (IRELAND)

Personal Author(s) : Heffernan, J. F. ; Moloney, M. H. ; Hegarty, J.

Report Date : 22 MAY 1992

Pagination or Media Count : 4

Abstract : We have demonstrated all-optical modulation of a normally off asymmetric Fabry-Perot etalon with a nonlinear GaAs/AlGaAs multiple quantum well spacer. Large changes in reflectivity were observed giving an extremely high contrast ratio of 160:1 with less than 1 dB insertion loss. We have determined the nature of this modulation to be due to strong absorption and refractive index changes in the non-linear spacer.

Descriptors :   *LIGHT MODULATORS, ABSORPTION, CONTRAST, INSERTION LOSS, MODULATION, RATIOS, REFLECTIVITY, REFRACTIVE INDEX, SPACERS, GALLIUM ARSENIDES, ALUMINUM GALLIUM ARSENIDES, HETEROJUNCTIONS, LOW LOSS, ICELAND.

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE