Patent ID: 8270792
Filing Date: 2012-09-18
Classification: G02B,H04J

Abstract:
1. An apparatus for frequency channelization, said apparatus comprising: (a) an input for receiving a multi-frequency optical signal and a single delay-line for propagating said optical signal; (b) a first waveguide layer comprising a first waveguide and a second waveguide layer comprising a second waveguide; (c) in said first waveguide layer, a plurality of filter-taps from said single delay-line; (d) in said second waveguide layer, a slab waveguide coupler with output ports for spatially separating signals from said filter-taps; and (e) an optical interconnect traversing from said first waveguide layer to said second waveguide layer, wherein said optical interconnect guides signals from said filter-taps to said slab waveguide coupler.