Temperature-dependent dispersion relations for nonlinear optical materials of the KTP family

摘要

We have measured the temperature dependence of z and y components of the refractive index for the nonlinear optical materials family of KTP: KTiOPO/sub 4/ (KTP), KTiOAsO/sub 4/ (KTA), RbTiOPO/sub 4/ (RTP) and RbTiOAsO/sub 4/ (RTA). The measurements were done using an interferometric setup in the wavelength range of 532-1580 nm and in the temperature range of 25-200/spl deg/C. In addition, the thermal expansion coefficients were measured in the x direction. For RTA, the accuracy of the equation of dnz/dT was further improved in the mid-infrared using frequency conversion measurements.