Accession Number : ADP007413

Title :   Quantum-Well Fabry-Perot Electro-Absorption and Refraction Modulators and Bistability,

Corporate Author : AT AND T BELL LABS HOLMDEL NJ

Personal Author(s) : Boyd, G. D. ; Livescu, Gabriela ; Chirovsky, L. M. ; Fox, A. M.

Report Date : 22 MAY 1992

Pagination or Media Count : 5

Abstract : Following the demonstration of the absorption reflection modulator 1, many workers 2-10 have used Fabry-Perot resonators to improve the limited contrast ratio of these multiple quantum well light modulators. Most experiments have been in the normally on (Non), spectral region where absorption increases with field. Using field dependent GaAs/AlGaAs quantum well absorption data, we have created a model that calculates the reflectivity and contrast ratio of resonant and non-resonant modulators in both the normally off (Noff), region where absorption decreases with field, and the normally on (Non) spectral regions for use with photonic devices such as the self-electrooptic effect device (SEEDs). ne calculations include both electro-absorption and electro-refraction effects.

Descriptors :   *LIGHT MODULATORS, *PHOTONICS, ABSORPTION, CONTRAST, DEMONSTRATIONS, ELECTROOPTICS, MODELS, RATIOS, REFLECTION, REFLECTIVITY, REFRACTION, REGIONS, CAVITY RESONATORS, HETEROJUNCTIONS, GALLIUM ARSENIDES, ALUMINUM GALLIUM ARSENIDES.

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE