The optical module SerDes chip (Serializer/Deserializer, SerDes) is a fundamental enabling component in high-speed optical communication systems. Inside optical modules, host systems typically generate multi-channel. In this paper, we demonstrate the first optical serial-to-parallel conversion in a silicon device using four-wave mixing (FWM) based time-domain optical Fourier transformation (OFT). We demonstrate all 32-channel simultaneous OTDM to WDM conversion of 320-Gbit/s DPSK and of 640-Gbit/s DQPSK signal, respectively. There are not so many applications where independent control over more than 50 different voltages could be required.
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