Strong Self-Phase Modulation in Periodically Poled Lithium Niobate Under Subpicosecond Pump Pulses

Abstract

Recent progress in fabrication of PPLN offers new effects, the observation of which is very difficult in traditional materials. So far the main activity has been focussed on efficient second harmonic generation and parametric oscillation. Here we present results on strong nonlinear interactions in PPLN, which have to date received little attention, but offer very interesting applications requiring relatively low powers.