Time-dependent analysis of acousto-optic tunable filters for multichannel optical switching

Author

Song, G. Hugh

Author_Institution

Dept. of Inf. & Commun., Kwangju Inst. of Sci. & Technol., South Korea

Volume

15

Issue

3

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

519

Lastpage

528

Abstract

A time-dependent analysis of acousto-optic tunable filters (AOTF´s) for multiwavelength optical-switching operations is presented, it explains the reason for the observed nonlinear behavior such as passband-pulling and quantifies the associated crosstalk performance degradation. The degradation of the filter performance is found to be due to copresence of the acousto-optic interaction profiles for different channels. Along with extensive Poincare-sphere analysis, the model also reveals time-dependent fluctuation of switching spectral responses, which calls for attention to the worst instances in the fluctuation for the wavelength division multiplexer (WDM) optical-switch application

Keywords

acousto-optical filters; acousto-optical switches; band-pass filters; optical crosstalk; telecommunication channels; tuning; wavelength division multiplexing; WDM; acousto-optic interaction profiles; acousto-optic tunable filters; crosstalk performance degradation; extensive Poincare-sphere analysis; multichannel optical switching; multiwavelength optical-switching operations; nonlinear behavior; passband-pulling; switching spectral responses; time-dependent analysis; time-dependent fluctuation; wavelength division multiplexer; Degradation; Fluctuations; Nonlinear optics; Optical attenuators; Optical crosstalk; Optical filters; Optical network units; Optical switches; Passband; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.557568

Filename

557568