Abstract
We investigate the problem of designing scalable wavelength division multiplexing
(WDM) optical interconnects with reduced hardware complexity. We present a
new WDM interconnect based on the well-known three-stage Clos network. For
scalability purposes, any wavelength conversion occurs between two predefined
wavelengths, eliminating the need for any full- or wide-range wavelength converters.
We show that the new design provides better scalability at a reduced hardware
complexity compared with most of the recent best interconnect designs. We
also show that the proposed interconnect admits existing routing algorithms
for the three-stage space Clos network with simple extensions.
© 2006 Optical Society of America
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