Abstract
Diffusion bonded (DB) walk-off compensated KTP crystals offer an alternative nonlinear medium for efficient conversion within optical parametric oscillators (OPOs) at low pulse energies. Spatial variations in optical absorption and transmission values measured at are reported for two DB-KTP crystals. Finally, a comparison is made between the conversion efficiency obtained from a degenerate 1 μm pumped OPO using a single KTP crystal and an equivalent length DB-KTP crystal consisting of two bonded 10 mm crystals.
© 2006 Optical Society of America
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