Bit error rate analysis of a silicon optical interposer using its equivalent circuit

We analyzed the bit error rate of optical data links in a silicon optical interposer using an equivalent-circuit model. Both optical and electrical signals can be simultaneously simulated in a circuit model where optical signals are expressed as equivalent currents. The modeled silicon optical interposer consisted of a laser diode, an optical modulator, an optical waveguide, and a photodiode. The electrical parameters of the devices were obtained from experimental results. The calculated 12.5-Gbps eye diagram and minimum sensitivity of −5.6 dBm were consistent with the experimental results.