Optical modulators using fibreoptic Sagnac interferometers

Author

Yu, A. ; Siddiqui, A.S.

Author_Institution

Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK

Volume

141

Issue

1

fYear

1994

fDate

2/1/1994 12:00:00 AM

Firstpage

1

Lastpage

7

Abstract

We propose, and present a theoretical and experimental investigation of optical modulators using fibreoptic Sagnac interferometers. Several possible modulator configurations have been investigated and compared. An optical modulator using the ceramic material PLZT as the electrooptic modulating element has been experimentally demonstrated to show the feasibility of this new type of modulator structure. Preliminary experimental results show that the optical modulators using fibre Sagnac interferometer have a number of useful features such as input polarisation independence, readily adjustable phase bias, and suitability for forming fibre-to-fibre devices

Keywords

electro-optical devices; fibre optic sensors; lanthanum compounds; lead compounds; light interferometers; optical materials; optical modulation; PLZT; PbLaZrO3TiO3; adjustable phase bias; ceramic material PLZT; electrooptic modulating element; fibre couplers; fibre-to-fibre devices; fibreoptic Sagnac interferometers; input polarisation independence; modulator configurations; modulator structure; optical modulators;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:19949806

Filename

278108