100-Gbit/s optical TDM add/drop multiplexer based on photonic downconversion and four-wave mixing

Summary form only given. Future ultrahigh-speed optical transparent networks require optical time-division multiplexed (TDM) signal processing nodes that can control optical short pulses of several picoseconds. We have proposed an add/drop multiplexer based on optical wavelength conversion by four-wave mixing (FWM), and confirmed its operation with synchronized signals. In this report, we propose an optical TDM add/drop multiplexer using a phase-lock loop timing extraction circuit and demultiplexer based on photonic downconversion for a stable add/drop operation with a simple configuration.