Vo, T. D.Hu, H.Galili, M.Palushani, E.Xu, J.Oxenløwe, L. K.Madden, S. J.Choi, Duk-YongBulla, DouglasPelusi, M. D.Schröder, J.Luther-Davies, B.Eggleton, B. J.2016-06-162016-06-161094-4087http://hdl.handle.net/1885/104127We demonstrate chip-based Tbaud optical signal processing for all-optical performance monitoring, switching and demultiplexing based on the instantaneous Kerr nonlinearity in a dispersion-engineered As(2)S(3) planar waveguide. At the Tbaud transmitter, we use a THz bandwidth radio-frequency spectrum analyzer to perform all-optical performance monitoring and to optimize the optical time division multiplexing stages as well as mitigate impairments, for example, dispersion. At the Tbaud receiver, we demonstrate error-free demultiplexing of a 1.28 Tbit/s single wavelength, return-to-zero signal to 10 Gbit/s via four-wave mixing with negligible system penalty (< 0.5 dB). Excellent performance, including high four-wave mixing conversion efficiency and no indication of an error-floor, was achieved. Our results establish the feasibility of Tbaud signal processing using compact nonlinear planar waveguides for Tbit/s Ethernet applications.This work was supported by an Australian Research Council (ARC) under the ARC Centres  of Excellences and Linkage Programs.10 pages© 2010 Optical Society of America. This is an open access journal https://www.osapublishing.org/oe/journal/oe/about.cfm (Publisher journal website 16/6/2016).equipment designfiber optic technologyphotonssignal processing, computer-assistedspectrum analysistelecommunicationsmicrowavesoptical devicesradio waves2010-08-0210.1364/OE.18.017252