Symmetry breaking of the χ(2) polarization in poled thin film lithium niobate waveguides enabling phase matching

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Author
Hefti, Olivia
Tremblay, Jean-Etienne
Volpini, Andrea
Zarebidaki, Homa
Prieto, Ivan
Dubochet, Olivier
Despont, Michel
Lecomte, Steve
Brès, Camille-Sophie
Sattari, Hamed
Abstract
Poling the bottom of etched LNOI waveguides enables modal phase matching with an anti-symmetric mode and a measured second harmonic generation efficiency of 1980 %W-1cm-2. The simple design allows for reproducible on-chip frequency conversion.
Publication Reference
CLEO 2024, Technical Digest Series (Optica Publishing Group, 2024), paper STu3E.4.
Year
2024-05-24
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