A system (100) for routing optical signals (235) includes a waveguide array (102, 202) and a cylindrical resonator (115) lying across the waveguide array (102, 202), the cylindrical resonator (115) having independently controllable tangential interfaces with each of the waveguides within the waveguide array (102, 202). A method of selectively routing an optical signal (430) between waveguides (415, 425) includes selecting a optical signal (430) to route; determining the desired path the optical signal (430); tuning a first controllable interface between a cylindrical resonator (301) and a source waveguide (415) to extract the optical signal (430) from the source waveguide (415); and tuning a second independently controllable interface between the cylindrical resonator (301) and a destination waveguide (425) to deposit the optical signal into the destination waveguide (425).