Large N x N waveguide grating routers

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 b...

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Veröffentlicht in:	Journal of lightwave technology 2000-07, Vol.18 (7), p.985-991
Hauptverfasser:	Bernasconi, P., Doerr, C., Dragone, C., Cappuzzo, M., Laskowski, E., Paunescu, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Channels Circuit properties Couplers Devices Diffraction gratings Dispersion Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Frequency Gratings (spectra) Integrated optics. Optical fibers and wave guides Neural networks Optical and optoelectronic circuits Optical crosstalk Optical propagation Optical refraction Optical variables control Optical waveguides Optical waveguides and couplers Routers Space technology Waveguides Wavelengths
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Beschreibung
Zusammenfassung:	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.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/50.850744