Floor plan optimization techniques for integrated optic photonic switching architectures

We propose several methods by which more optimal directional-coupler based switch placement may be achieved in integrated optic switching architectures. First, we propose a method to remove waveguide crossovers, thus making for a planar realization. We illustrate this on tw o fundamental non-planar graphs K5 and K3, 3 and on the Beneš network. Next we discuss switch placement on an annular optical substrate, and the advantage gained by this technique. Lastly, we propose two techniques for achieving acute bends in light-paths, thus allowing fold-over architectural implementations.