Vo, Trung D.; Schroder, Jochen; Pelusi, Mark; Madden, Steve; Choi, Duk-Yong; Bulla, Douglas; Luther-Davies, Barry; Eggleton, Benjamin J
We report the first experimental demonstration of simultaneous multi-impairment monitoring of phase-modulated 40 Gbit/s nonreturn to zero differential phase-shift keying (NRZ-DPSK) and 640 Gbit/s return-to-zero (RZ)-DPSK optical signals. Our approach exploits the femtosecond response time of the Kerr nonlinearity in a centimeter-scale, highly nonlinear, dispersion engineered chalcogenide planar waveguide to perform THz bandwidth RF spectrum analysis. The features observed on the radio-frequency...[Show more]
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