Integrated quasi-phase-matched second-harmonic generator and electrooptic scanner on LiTaO3 single crystals

We report the first integrated quasi-phase-matched second-harmonic generator and electrooptic scanner on ferroelectric Z-cut LiTaO3. The quasi-phase-matched second-harmonic generation device frequency doubles the infrared light at 829.7 mn into blue at 414.85 nm with a bulk coversion efficiency of 0.52%/W-cm. The blue light generated in the bulk then passes through an electrooptic scanner, consisting of a series of lithographically defined triangular-shaped domain-inverted regions extending through the thickness of the crystal, A deflection of 12 mrad/kv for the output blue light and 7.4 mrad/kv for the infrared light was observed at the scanner output.