Harmonic blue light generation in bulk periodicallypoled MgO:LiNbO ₃

Abstract

A periodically domain-inverted structure for a first-order bulk quasi-phasematched second harmonic generation was fabricated in a 0.3 mm thick MgO:LiNbO3 crystal via the application of a high-voltage pulse. A blue output power of 1 mW was achieved with 330 mW of fundamental infrared light in a single pass through the 10 mm interaction length.