Sub nanosecond silicon on insulator optical micro ring switch with low crosstalk

We demonstrate a sub-nanosecond electro-optical switch with low crosstalk in a silicon-on-insulator (SOI) dual-coupled micro-ring embedded with p-i-n diodes. A crosstalk of -23 dB is obtained in the 20 \mu m-radius micro-ring with the well-designing asymmetric dual-coupling structure. By optimizatio