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Opt Lett. 2003 Feb 1;28(3):194-6.

Temperature-dependent Sellmeier equation for the refractive index of stoichiometric lithium tantalate.

Author information

1
Electro-Optics Division, Soreq Nuclear Research Center, Yavne 81800, Israel. bruner@soreq.gov.il

Abstract

We present a temperature-dependent Sellmeier equation for the refractive index of stoichiometric LiTaO3. The extraordinary refractive index, for the range 0.39-4.1 microm and for temperatures of 30-200 degrees C, are based on previously published data [Jpn. J. Appl. Phys. 41, 465 (2002)] and on measured data derived from quasi-phase-matched (QPM) resonances. We used the new Sellmeier coefficients that we obtained to calculate the QPM wavelengths for an optical parametric oscillator (OPO) based on periodically poled stoichiometric LiTaO3 pumped at 1064 nm. The measured wavelengths of the OPO were in good agreement with our predictions.

PMID:
12656329
DOI:
10.1364/ol.28.000194

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