Quasi-velocity-matched LiTaO 3 guided-waveoptical phasemodulator for integrated ultrashort optical pulse generators

Abstract
A quasi-velocity-matched guided-wave optical phase modulator using periodically domain inverted LiTaO3 is fabricated and demonstrated for the first time to the best of the authors' knowledge. Band modulation characteristics and the generation of optical side-bands of ~100 GHz are confirmed successfully. This modulator can be used to construct an integrated ultrashort optical pulse generator.