Phase‐matched second‐harmonic generation in novel corona poled glass waveguides

Second‐order optical nonlinearity χ(2) is induced in glass films by corona poling. The glass films are fabricated by radio‐frequency sputtering Corning7059 onto Pyrex glass substrates. The values of second‐order nonlinear coefficient d33 of the corona‐poled glass films are estimated to be ∼0.5 pm/V. Using the corona‐poled glass films as a waveguide, phase‐matched second‐harmonic generation has been demonstrated in the glass films for the first time. The origin of the χ(2) is considered to be related to the defects in the glass films.

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