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    Electrode-free optical sensor for high voltage using a domain-inverted LiNbO3 waveguide near cut-off

    We present a novel all-optical electric field sensor based on a proton-exchange waveguide near cut-off, centered on a few microns wide domain-inverted region in a z-cut LiNbO3 substrate. The output intensity from...

    D. Tulli, D. Janner, M. Garcia-Granda, R. Ricken, V. Pruneri in Applied Physics B (2011)