Patent ID: 7194206
Filing Date: 2007-03-20
Classification: G02B,H04Q

Abstract:
1. An optical cross connect for receiving a plurality of input optical signals each having a plurality of spectral bands and transmitting a plurality of output optical signals each having one or more of the spectral bands, the optical cross connect comprising: a concentrator disposed to redistribute the spectral bands included on the plurality of input optical signals among a plurality of first intermediate optical signals, each of the input optical signals having a plurality of the spectral bands; a core cross connect disposed to redistribute the spectral bands included on the plurality of first intermediate optical signals among a plurality of second intermediate optical signals; and an expander disposed to redistribute the spectral bands included on the plurality of second intermediate optical signals among the plurality of output optical signals, wherein the first intermediate optical signals are less in number than the input optical signals and the second intermediate optical signals are less in number than the output optical signals.