Abstract
Rubidium titanyl arsenate (RTA), a crystallographic isomorph of potassium titanyl phosphate, shows promise for nonlinear-frequency generation throughout the 1–5-µm spectral region. Difference-frequency generation in an RTA crystal produced tunable output in the 3.2–4.2-µm wavelength range. A single 1.064-µm Nd:YAG laser pumped both a LiNbO3 optical parametric oscillator used to generate a tunable signal beam and the RTA crystal used for difference-frequency generation. Conversion efficiencies were limited to 4% primarily by the large beam divergence of the signal beam. Phase-matching measurements were in excellent agreement with new IR-corrected RTA Sellmeier equations based on refractive-index measurements.
© 1996 Optical Society of America
Full Article | PDF ArticleMore Like This
Jean-Philippe Fève, Benoı̀t Boulanger, Olivier Pacaud, Isabelle Rousseau, Bertrand Ménaert, Gérard Marnier, Philippe Villeval, Christophe Bonnin, G. M. Loiacono, and D. N. Loiacono
J. Opt. Soc. Am. B 17(5) 775-780 (2000)
D. L. Fenimore, K. L. Schepler, U. B. Ramabadran, and S. R. McPherson
J. Opt. Soc. Am. B 12(5) 794-796 (1995)
Takamasa Momose, Tomonari Wakabayashi, and Tadamasa Shida
J. Opt. Soc. Am. B 13(8) 1706-1712 (1996)