• Second-order quasi-phase matched second harmonic generation in annealed proton-exchanged LiNbO3 channel waveguides

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      https://www.ias.ac.in/article/fulltext/sadh/017/03-04/0451-0457

    • Keywords

       

      Harmonic generation; optical waveguides; LiNbO3 waveguides; quasi-phase matched waveguides

    • Abstract

       

      We report the first efficient blue second harmonic generation (SHG) in a second-order quasi-phase matching (QPM) LiNbO3 waveguide. We show both theoretically and experimentally that the second-orderQPM grating is the optimum structure for waveguideSHG in LiNbO3 waveguides. Using such a structure, we have demonstrated blue light generation with a conversion efficiency of 65%/W-cm2, the highest reported so far in LiNbO3 waveguides.

    • Author Affiliations

       

      R V Ramaswamy1 Xiaofan Cao1

      1. Photonics Research Laboratory, Department of Electrical Engineering, University of Florida, Gainesville, FL - 32611, USA
    • Dates

       
  • Sadhana | News

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