Patent ID: 6414767
Filing Date: 2002-07-02
Classification: H04J,H04L

Abstract:
An optical network comprising:N nodes, N optical waveguide transmission rings, and N optical waveguide reception rings; each of said nodes comprising an optical transmitter operative on a WDM of N wavelengths and an optical receiver operative on a WDM of N wavelengths each of said transmission rings being connected to a WDM transmitter of one of said nodes and each of said reception rings being connected to a WDM receiver of one of said nodes, wherein the optical network also comprises a wavelength responsive NÃ—N WDM router having N input ports and N output ports, each of said input ports being connected to one of said transmission rings and each of said output ports being connected to one of said reception rings, said WDM router providing a path determined by wavelength from each of said input ports to each of said output ports.