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  • Title: Second-harmonic generation in periodically-poled thin film lithium niobate wafer-bonded on silicon.
    Author: Rao A, Malinowski M, Honardoost A, Talukder JR, Rabiei P, Delfyett P, Fathpour S.
    Journal: Opt Express; 2016 Dec 26; 24(26):29941-29947. PubMed ID: 28059378.
    Abstract:
    Second-order optical nonlinear effects (second-harmonic and sum-frequency generation) are demonstrated in the telecommunication band by periodic poling of thin films of lithium niobate wafer-bonded on silicon substrates and rib-loaded with silicon nitride channels to attain ridge waveguide with cross-sections of ~2 µm2. A nonlinear conversion of 8% is obtained with a pulsed input in 4 mm long waveguides. The choice of silicon substrate makes the platform potentially compatible with silicon photonics, and therefore may pave the path towards on-chip nonlinear and quantum-optic applications.
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