OPTICAL PARAMETRIC OSCILLATION USING KTA NONLINEAR CRYSTALS

摘要

A continuous wave tunable femtosecond optical parametric oscillator (10) includes an oscillator cavity including a pumping cavity (20). A nonlinear KTiOAsO crystal (KTA) (24) is located in the pumping cavity (20) and is pumped by a Ti:sapphire laser (30) to produce output pulses having widths as short as 85 femtoseconds at wavelengths in the range 1.0 mu m to 5.0 mu m.