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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-μm-radius micro-ring with the well-designing asymmetric dual-coupling structure.By optimizations of the doping profiles and the fabrication processes,the sub-nanosecond switch-on/off time of<400 ps is finally realized under an electrical pre-emphasized driving signal.This compact and fast-response micro-ring switch,which can be fabricated by complementary metal oxide semiconductor(CMOS) compatible technologies,have enormous potential in optical interconnects of multicore networks-on-chip.
We demonstrate a sub-nanosecond electro-optical switch with low crosstalk in a silicon-on-insulator (SOI) dual-coupled micro-ring embedded with pin diodes. A crosstalk of -23 dB is obtained in the 20-μm-radius micro -ring with the well-designing asymmetric dual-coupling structure. By optimizations of the doping profiles and the fabrication processes, the sub-nanosecond switch-on / off time of <400 ps is finally realized under an electrical pre-emphasized driving signal. This compact and fast-response micro-ring switch, which can be fabricated by complementary metal oxide semiconductor (CMOS) compatible technologies, have enormous potential in optical interconnects of multicore networks-on-chip.