Abstract
Potassium Titanyl Arsenate (KTA) has the advantage of enhanced transparency in the mid-infrared region (~3 μm) over KTP, which is the well established material for up-converting 1-μm laser radiation into the 1.5-μm region.1 Although parametric oscillation in KTP at 3.26 μm has been demonstrated,2 the absorption of the idler wavelength is critical in high-repetition-rate KTP/KTA-OPOs, as longer crystals are used to compensate for the lower pulse energies of the cw pumped laser.
© 1996 Optical Society of America
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