Patent ID: 7221820
Filing Date: 2007-05-22
Classification: H04B,H04J

Abstract:
1. An optical node comprising: a group-band component having a first plurality of group ports and a band port, wherein each of said group ports couples to a waveguide which carries a group of multiplexed channels, and wherein said band port couples to a waveguide which carries an optical signal having a plurality of multiplexed groups; a corresponding first plurality of group-channel components, each having a second plurality of channel ports and a group port, wherein each of said channel ports couples to a waveguide which carries a single channel, and wherein said group port couples to a waveguide which carries a group of multiplexed channels; and a first plurality of group dispersion compensation modules, each of said modules interposed between one of the group ports of said group-band component and the group port of a corresponding one of said group-channel components; wherein said groups of multiplexed channels have an associated characteristic for separating said groups from an optical signal having a plurality of multiplexed groups and wherein each of said corresponding first plurality of group-channel components operate identically for each group of multiplexed channels.