van Erps, JurgenLuan, FPelusi, MarkIredale, TimMadden, SteveBulla, DouglasLuther-Davies, BarryThienpont, HugoEggleton, Benjamin JChoi, Duk-Yong2015-12-10October 4-9781424436811http://hdl.handle.net/1885/54882We demonstrate a photonic-chip-based optical sampling system with temporal resolution <500-fs, making use of four-wave mixing in a 7-cm chalcogenide planar waveguide. We use such a short, dispersion-shifted waveguide with ultrahigh nonlinearity (104/W/km) to monitor a 640-Gb/s datastream.Keywords: Datastream; High resolution; Highly nonlinear; Non-Linearity; Optical sampling; Temporal resolution; Waveguides; Four wave mixing200910.1109/LEOS.2009.53431392016-02-24