Patent ID: 7171067
Filing Date: 2007-01-30
Classification: G02B,H04J

Abstract:
1. An interleaver of optical channels, comprising: an input Y-branch waveguide having a first output and a second output; a first phase shifter, disposed between the first Y-branch waveguide output and a first input of a first multi-sectional coupler, the first multi-sectional coupler comprising at least two couplers connected in series; a second phase shifter, disposed between the second Y-branch waveguide output and a second input of the first multi-sectional coupler; a third phase shifter, disposed between a first output of the first multi-sectional coupler a first input of a second multi-sectional coupler, the second multi-sectional coupler comprising at least two couplers connected in series; and a fourth phase shifter, disposed between a second output of the first multi-sectional coupler a second input of the second multi-sectional coupler; wherein a first output of the second multi-sectional coupler is associated with a first group of optical channels; and a second output of the second multi-sectional coupler is associated with a second group of optical channels.