Multichannel operation of AOTF switches: reducing channel-to-channel interaction

Author

Jackel, Janet L. ; Baran, Jane E. ; Chang, G.K. ; Iqbal, M. Zafar ; Song, G. Hugh ; Tomlinson, W.J. ; Fritz, Daniel ; Ade, Robert

Author_Institution

Bellcore, Red Bank, NJ, USA

Volume

7

Issue

4

fYear

1995

fDate

4/1/1995 12:00:00 AM

Firstpage

370

Lastpage

372

Abstract

An acoustooptic tunable filter (AOTF) can be used as a multichannel wavelength-routing switch; however, switching efficiency decreases and the switched wavelength channels shift toward each other when neighboring channels are selected simultaneously. We explain the cause of this behavior and show how to reduce the degradation in switch characteristics using a combination of passband flattening and counterpropagating acoustic waves.<>

Keywords

acousto-optical filters; acousto-optical switches; optical communication equipment; telecommunication network routing; tuning; wavelength division multiplexing; AOTF switches; acoustooptic tunable filter; channel-to-channel interaction; counterpropagating acoustic waves; multichannel operation; multichannel wavelength-routing switch; neighboring channels; passband flattening; switched wavelength channel shift; switching efficiency; Acoustic waves; Crosstalk; Degradation; Filters; Frequency; Optical switches; Passband; Tunable circuits and devices; Wavelength routing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.376805

Filename

376805