The thermo-optic coefficient of lithium niobate (LiNbO₃) has been measured in the temperature range from 10 to 160 °C using an interferometric setup. Undoped and magnesium-doped congruently melting LiNbO₃ and undoped stoichiometric LiNbO₃ were studied over a wide wavelength range in the visible and near infrared (450 – 600 nm and 900 – 1130 nm) using a frequency-doubled cw optical parametric oscillator. Experimental results for congruently grown lithium niobate were aggregated using a Schott equation to describe the wavelength and temperature dependence of the thermo-optic coefficient.

Date Published: 24 March 2015
PDF: 9 pages
Proc. SPIE 9347, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIV, 93471C (24 March 2015); doi: 10.1117/12.2077493

Published in SPIE Proceedings Vol. 9347:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIV
Konstantin L. Vodopyanov, Editor(s)