Title :
Effect of electroabsorption on electrorefractive intensity modulators
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
fDate :
6/1/1992 12:00:00 AM
Abstract :
A theoretical analysis of the effect of electroabsorption on intensity modulation in Mach-Zehnder interferometers and directional couplers using the quantum-confined Stark effect (QCSE) and the bandfilling (BF) effect is presented. The achievable contrast ratios in the two types of electrorefractive modulators depend differently on the relative strength of the phase versus the amplitude modulation. QCSE is more suitable for directional couplers, while BF is more suitable for Mach-Zehnder interferometers.<>
Keywords :
directional couplers; electro-optical devices; electroabsorption; light interferometers; optical couplers; optical modulation; Mach-Zehnder interferometers; amplitude modulation; bandfilling; contrast ratios; directional couplers; electroabsorption; electrorefractive intensity modulators; intensity modulation; phase modulation; quantum-confined Stark effect; Absorption; Amplitude modulation; Chromium; Directional couplers; Electrooptic effects; Intensity modulation; Optical interferometry; Phase modulation; Quantum well devices; Stark effect;
Journal_Title :
Photonics Technology Letters, IEEE
