Backward Second-Harmonic Generation in Optically Poled Silicon Nitride Waveguides

Yakar, OzanHu, JianqiNitiss, EdgarsBrès, Camille Sophie2023-02-072023-02-072023-02-072022-05-1610.1364/CLEO_SI.2022.SM4K.4https://infoscience.epfl.ch/handle/20.500.14299/194685We report the inscription of quasi-phase-matching gratings in silicon nitride waveguides for backward second-harmonic-generation enabled by all-optical poling, therefore, circumventing the difficulties in inscribing poled domains with ultra-short periods.Backward Second-Harmonic Generation in Optically Poled Silicon Nitride Waveguidestext::conference output::conference proceedings::conference paper