Abstract

We report what is believed to be the first observation of second-harmonic generation by type I phase matching the bulk χxyz(2) (d14) nonlinear coefficient using Bragg reflection waveguides. Second-harmonic power of 0.7μW was observed for a pump wavelength of 1587.8nm with an average power of 25.2mW and a pulse width of 2ps at a repetition rate of 75.6MHz. An order of magnitude enhancement between the phase-matched and un-phase-matched second-harmonic conversion efficiency has been observed. Conversion efficiency at the phase-matched wavelengths was 0.001%. The bandwidth of the second harmonic was found to be equal to 0.43nm, agreeing with the theoretical predictions.

© 2007 Optical Society of America

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