Fast-Tuning Adiabatic Microrings for CROW Filters and Athermal WDM Receivers in a 45 nm SOI CMOS Process

Adiabatic microrings with opposing p/n contacts achieve full carrier sweepout in reverse bias and energy-efficient carrier injection in forward bias, exhibiting 200GHz/V peak shift in C-band for athermal tuning over a 220 GHz range.