Patent ID: 6643421
Filing Date: 2003-11-04
Classification: G02B,G02F,H04J

Abstract:
A demultiplexing device for selectively demultiplexing a multi-channel light signal having a channel spacing characteristic, said device comprising:a first waveguide; a second waveguide; a first resonator disposed between said first waveguide and said second waveguide, said first resonator defining a first free spectral range; a third waveguide; and, a second resonator disposed between said second waveguide and said third waveguide, said second resonator defining a second free spectral range, said second free spectral range being an even multiple of said first free spectral range to divide said multi-channel light signal into a second signal and a third signal, said second signal and said third signal having a channel spacing, said channel spacing of said second signal being the same as the channel spacing of said third signal.