Digital-to-analog converters (DACs) with very high conversion rates and bandwidth are of special interest for optical coherent transceiver systems and arbitrary waveform generators. An attractive solution to provide several channels with very high data rates of tens of Gbit/s is to use a high speed serializer. We present a CMOS serializer consisting of a 19 channel 16:1 multiplexer (MUX) for output data rates up to 64 Gbit/s per channel and a low skew clock distribution network.

We present a novel silicon-organic hybrid modulator based on an single waveguide interferometer, which can be used for optical communications. A prototype modulator showing a voltage dependent transmission spectrum is obtained by cladding a dual-mode waveguide in a 250 nm silicon-on-insulator technology with a customized organic electro-optic layer. The presented prototype is to the best of the authors’ knowledge the first integrated single waveguide silicon-organic hybrid modulator.