An optical network, in the form of a 12N splitter, includes a
series of interconnected distribution devices of varying size. Each distribution
device may be an H-tree distribution device having an input waveguide and four
output waveguides that provide in-phase, equal intensity copies of a signal received
on the input waveguide. The network may include a primary H-tree distribution device
and a plurality of secondary H-tree distribution devices each of a smaller size
than the primary H-tree distribution device. Individual H-tree distribution devices
may have a first stage Y-branch and a second stage Y-branch each of different radii
of curvature. Further still, progressively smaller radius of curvature Y-branches
may be used to form the 12N splitter, where N may be an even or
odd integer.
