Patent ID: 8588556
Filing Date: 2013-11-19
Classification: G02B,G02F,H04B

Abstract:
1. An apparatus, comprising: a substrate with a planar surface; an optical power splitter on the surface; an optical power combiner on the surface; pairs of optical waveguides located on the planar surface, each waveguide of the pairs connecting a corresponding output of the optical power splitter to a corresponding input of the optical power combiner; a plurality of optical resonators located on the surface, each of the resonators of the plurality being evanescently coupled to a corresponding one of the waveguides; and wherein for each particular one of the pairs, resonant frequencies of the optical resonators coupled to the waveguides of the particular one of the pairs are about the same; and wherein resonant frequencies of each pair of the optical resonators coupled to two of the waveguides in different ones of the pairs of optical waveguides are different.