Multi-channel, multi-port mono-directional and bi-directional optical tap coupler

摘要

A multi-channel, multi-port bi-directional optical tap coupler with an alignment base element (112), a pair of sub-assemblies (100, 118) located at opposite ends of the alignment base element, focusing elements (114, 115) located next to each sub-assembly, and an optical filter (116) adjacent to, and in-between the focusing elements is described. The first sub-assembly has an array of waveguides (103-106) with each waveguide having a radial offset and an azimuthal position with respect to a center axis of the array. The first array includes transmission waveguides and receiving waveguides and each receiving waveguide has a corresponding transmission wave guide that is separated by an azimuthal angle of 180 degrees. The second sub-assembly has a second array of waveguides (107-110) including a wave guide having the same radial offset and the same azimuthal position for each of the transmission wave and receiving guides of the first array.