All-optically induced quasi phase matching in SiN waveguides for second harmonic generation enhancement

Grassani, DavideBillat, AdrienPfeiffer, Martin Hubert PeterKharitonov, SvyatoslavKippenberg, TobiasBrès, Camille-Sophie2017-08-312017-08-312017-08-31201710.1364/CLEO_SI.2017.SM1M.4https://infoscience.epfl.ch/handle/20.500.14299/139922We report more than 30dB second harmonic generation enhancement in SiN waveguide by all-optical writing of a persistent χ(2) grating. Phase matching peaks are observed for different writing wavelengths.All-optically induced quasi phase matching in SiN waveguides for second harmonic generation enhancementtext::conference output::conference proceedings::conference paper