This paper appears in: Spectrum, IEEE
Publication Date: Aug 2002
Volume: 39,
Issue: 8
On page(s): 21, 24-
ISSN: 0018-9235
INSPEC Accession Number: 7357460
Digital Object Identifier: 10.1109/MSPEC.2002.1022024
Current Version Published: 2002-11-07
Abstract
The International Telecommunication Union (ITU) has removed a barrier to better short-haul optical communication networks in urban centers with the approval of a new standard. Officially known as ITU-T Recommendation G.694.2, the new standard specifies a set of wavelengths for use in what are known as coarse wavelength-division multiplexing (CWDM) systems. Unlike dense wavelength-division multiplexing (DWDM), in which wavelengths are spaced less than a nanometer apart, the new standard for CWDM specifies 20-nm spacing.
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