Wavelength division multiplexed system for optical access rings

Details Wavelength division multiplexed system for optical access rings Wavelength division multiplexed system for optical access rings

H - Electricity

04

J

H04J 14/02 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2300235

A Wavelength Division Multiplexed (WDM) ring architecture includes central node which generates a plurality of continuous wave (unmodulated) optical wavelengths which are sent as a WDM signal over an optical facility to a plurality of access nodes of the system. At the access nodes, one or more of these unmodulated optical wavelengths are demultiplexed from the WDM signal received over the optical facility and modulated with the user's or customer's signals and then multiplexed to the WDM signal on the optical facility.

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