Slow light III V on silicon hybrid modulator
A compact optical modulator based on the hybrid integration of a III V photonic crystal based active region in a silicon on insulator waveguide is proposed and designed. An extinction ratio up to 20 dB is obtained in a 18.75 mm long device. A 3 dB cut off frequency of 15 GHz, and an energy consumption of 19 fJ/bit are estimated by an equivalent small signal electrical circuit, while the optical bandwidth is larger than 10 nm, which is higher than for typical low power consumption silicon modulators.
2016 Photonics North (PN)