Integrated-optic acoustically-tunable filters for WDM networks

Author

Smith, David A. ; Baran, Jane E. ; Johnson, John J. ; Cheung, Kwok-Wai

Author_Institution

Bellcore, Red Bank, NJ, USA

Volume

8

Issue

6

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

1151

Lastpage

1159

Abstract

The background needed to understand the integrated-optic collinear acoustically tunable optical filters (ATOFs) and the fabrication and performance of both simple and multielement acoustooptic tunable filters is presented. The most important sources of crosstalk between channels simultaneously selected by a single device are discussed. ATOFs have the combined virtues of narrow passband (subnanometer bandwidth), broad tuning range (hundreds of nanometers have been demonstrated), and simultaneous independent multiple-channel filtering. The theory and practice of collinear integrated optic acoustooptic filters is presented. Devices which involve higher-order integration are discussed, including multiple-state filters for enhanced sidelobe suppression and polarization-independent configurations. Various sources of interchannel crosstalk are derived and demonstrated in multiwavelength filtering experiments

Keywords

acousto-optical devices; frequency division multiplexing; integrated optics; optical communication equipment; optical filters; tuning; WDM networks; acoustically tunable optical filters; broad tuning range; crosstalk; fabrication; integrated optic acoustooptic filters; integrated optic collinear filter; multiple-channel filtering; multiple-state filters; multiwavelength filtering experiments; narrow passband; performance; sidelobe suppression; subnanometer bandwidth; Band pass filters; Bandwidth; Crosstalk; Filtering; Integrated optics; Optical device fabrication; Optical filters; Optical tuning; Passband; WDM networks;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.57821

Filename

57821