Ultra-small Silicon photonic wire waveguide devices

Silicon photonic devices based on silicon photonic wire waveguides are especially attractive devices, since they can be ultracompact and low-power consumption. In this paper, we demonstrated various devices fabricated on silicon photonic wire waveguides. They included optical directional couplers, reconfigurable optical add/drop multiplexers, 1 × 2, 1 × 4, 1 × 8 and 4 × 4 optical switches, ring resonators. The characteristics of these devices show that silicon photonic wire waveguides offer promising platforms in constructing compact and power-saving photonic devices and systems.