Abstract

KTP (KTiOPO₄) is a new class of nonlinear optical crystal which has been recently developed. The crystal exhibits several unique and interesting properties including a high nonlinear coefficient (comparable with that of Ba₂NaNb₅O₁₅), a high damage threshold, and a low degree of sensitivity to the thermally induced phase-mismatch. In the present work, we describe the recent development in the growth of optical quality crystals and a study of nonlinear phase-matching properties of KTP at 1.06 µm. The nonlinear optical figure of merits of KTP will be compared with several other nonlinear crystals such as CDA, KDP, LilO₃, and LiNbO₃. its applications for other nonlinear optical devices will be discussed.

© 1981 Optical Society of America