Large N x N waveguide grating routers

Author

Bernasconi, P. ; Doerr, C. ; Dragone, C. ; Cappuzzo, M. ; Laskowski, E. ; Paunescu, A.

Author_Institution

Lucent Technol. Bell Labs., Holmdel, NJ, USA

Volume

18

Issue

7

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

985

Lastpage

991

Abstract

We show how the grating diffraction properties of a N/spl times/N waveguide grating router (WGR) can limit the size of N when the device operates with a unique set of N wavelengths as a strict-sense nonblocking N/spl times/N cross connect. We motivate why for large N, the N optical channels should be chosen equally spaced in wavelength and not in frequency. Two different approaches to increase N are presented. We report on results obtained in a 40/spl times/40 and a 80/spl times/80 WGR.

Keywords

diffraction gratings; optical communication equipment; optical interconnections; optical waveguide theory; optical waveguides; telecommunication network routing; wavelength division multiplexing; N/spl times/N waveguide grating router; grating diffraction properties; large N x N waveguide grating routers; optical channels; strict-sense nonblocking N/spl times/N cross connect; Couplers; Diffraction gratings; Dispersion; Frequency; Optical crosstalk; Optical propagation; Optical refraction; Optical variables control; Optical waveguides; Space technology;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.850744

Filename

850744