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 GaAsAlGaAs 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.
This article is from 'OSA Proceedings of the International Topical Meeting on Photonic Switching Held in Salt Lake City, Utah on 6-8 March 1992. Volume 8,' AD-A253 026, p222 thru p226.