Title :
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
fDate :
7/1/2000 12:00:00 AM
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;
Journal_Title :
Lightwave Technology, Journal of
