Aamer, MariamThomson, D. J.Gutiérrez Campo, Ana MaríaBrimont, Antoine Christian JacquesGardes, F. Y.Reed, G. T.Fedeli, J. M.Håkansson, Ola AndreasSanchis Kilders, Pablo2014-05-132013-09-010030-4018https://riunet.upv.es/handle/10251/37451[EN] We experimentally demonstrate a high-speed differential phase shift keying (DPSK) modulation using a silicon push-pull operated dual-drive Mach Zehnder modulator (MZM) based on carrier depletion. 5 Gbit/s and 10 Gbit/s error-free modulation is demonstrated by demodulating the generated DPSK modulated signal using a demodulation circuit based on a polarization delay interferometer through the use of a differential group delay (DGD). Furthermore, the potential for higher DPSK modulation speeds up to 20 Gbit/s is also demonstrated. The obtained results validate the potential to achieve higher order modulation formats, such as quadrature phase shift keying (QPSK), by arranging the MZM in a nested configuration. (C) 2013 Elsevier B.V. All rights reserved.4Reserva de todos los derechosSilicon photonicsPhotonic integrated circuitsPhase modulationWaveguide modulatorsTEORIA DE LA SEÑAL Y COMUNICACIONESArtículo10.1016/j.optcom.2013.04.051Abierto