Patent ID: 8155521
Filing Date: 2012-04-10
Classification: H04J,H04Q

Abstract:
1. A multi-degree cross-connection system comprising: an optical coupler which splits an input optical signal comprising a plurality of wavelengths into a plurality of paths; a wavelength selective switch (WSS) which extracts a plurality of wavelengths from the split optical signal and selectively transmits the extracted wavelengths to at least one output port; and a plurality of optical receivers, each optical receiver converting a predetermined wavelength that is selected from among the extracted wavelengths into an electrical signal; an electrical cross-connection/grooming switch which outputs an electrical signal to be transmitted to a local network and grooms the electrical signal to be transmitted to the local network by combining it with a signal input from the local network; a cross-connection control system which controls wavelengths of the optical signals input to the WSS and output from the at least one output port.