Abstract

We grew KTP crystals of which size is over 8.5 cm in the c-axis from flux, and measured distribution of refractive indices which affects on the phase matching angle in the grown crystal. As a result, we have found that the phase matching angle in the crystal changed considerably corresponding to the change in the refractive indices. As the refractive indices of KTP crystal grown by flux change due to the growth condition, it seems to be difficult to determine the phase matching angle precisely.

© 1993 Optical Society of America