Effect of electroabsorption on electrorefractive intensity modulators

Author

Chin, M.K.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA

Volume

4

Issue

6

fYear

1992

fDate

6/1/1992 12:00:00 AM

Firstpage

583

Lastpage

585

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.141975

Filename

141975