Patent ID: 7027733
Filing Date: 2006-04-11
Classification: H04Q

Abstract:
1. A method for multicasting data services on an optical network, the method comprising steps of: receiving a wavelength division multiplexed (WDM) signal from a hub node of the optical network, the WDM signal including a plurality of wavelengths; separating at least one wavelength from the plurality of wavelengths of the WDM signal; switching each separated wavelength for multicast data from the optical network to a modulator loop, modulating each separated wavelength with multicast data; recombining each separated wavelength with each wavelength of the WDM signal that was not separated from the WDM signal; switching each modulated wavelength from the modulator loop to the optical network, and sending the modulated WDM signal to a plurality of subscriber nodes of the optical network for delivering the multicast data.