Patent ID: 9223090
Filing Date: 2015-12-29
Classification: G02B,H04J,H04Q

Abstract:
1. A K×K bidirectional wavelength cross connect, comprising: a plurality K of 1:(K−1) optical couplers, each configured to receive one of a plurality of input optical signals, each of the plurality of input optical signals comprising a plurality of spectral bands; and a plurality (K(K−1))/2 of wavelength blockers, each wavelength blocker having at least two wavelength blocker ports; wherein each optical coupler is configured to transmit (K−1) substantial equivalents of one of the plurality of input optical signals to (K−1) wavelength blockers, to receive an output optical signal from each of the (K−1) wavelength blockers, and to transmit a composite output signal; and wherein the wavelength blockers are configured to receive two of the substantial equivalents of the plurality of input optical signals from two different optical couplers, selectively to block spectral bands from the substantial equivalents of the plurality of input optical signals, and to transmit output optical signals to the two different optical couplers.