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Enhanced nonlinearity in lithium niobate on insulator (LNOI) waveguides through engineering of lateral leakage

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Abstract

We present that the nonlinear optical conversion efficiency in LNOI ridge/rib waveguides can be improved by considering the lateral leakage at the second harmonic wavelength, enabling an improved nonlinear optical conversion efficiency of ~780% W−1cm−2.

© 2019 The Author(s)

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