부산대학교 도서관

Optical interconnects require compact, high-speed, low-power optical transceivers with hybrid integration of silicon photonic devices and electronic circuits. Electro-optic co-simulation is necessary for the design of such transceivers. The accuracy of photonic device models is still insufficient for high-frequency circuit design. This paper proposes an accurate model for Si rib waveguide and photonic crystal waveguide (PCW) Mach-Zehnder optical modulators, which includes high-frequency losses in the electrodes and the slow light effect of the PCW phase shifter. The operation of the optical device was described in Verilog-A which is compatible with the circuit design platform. The accuracy of the developed model was verified by S-parameter analysis and transient analysis with Keysight's Advanced Design System circuit simulator. The simulation results agreed well with the measurements up to 64 Gbaud.