Summary: Appl Phys B (2009) 96: 423­432
DOI 10.1007/s00340-009-3502-3
Linear and nonlinear optical properties of MgO:LiTaO3
I. Dolev · A. Ganany-Padowicz · O. Gayer · A. Arie ·
J. Mangin · G. Gadret
Received: 16 December 2008 / Published online: 3 April 2009
© Springer-Verlag 2009
Abstract We derive new temperature dependent Sellmeier
equations for the extra-ordinary and ordinary refractive in-
dices of 0.5% MgO-doped stoichiometric LiTaO3 crystal.
The equations are based on quasi phase-matched frequency
conversion measurements, as well as on interferometric
measurements of the thermal expansion and thermal dis-
persion. These equations fit experimental data over wide
spectral ranges: 0.35­6 µm for the extra-ordinary wave and
0.375­3.75 µm for the ordinary wave, from room tempera-
ture up to 200°C. The nonlinear optical measurements set
lower-limit values for the d33, d22, and d24 elements of the
second-order susceptibility tensor (2) of 12.9, 1.54, and
0.46 pm/V, respectively. The interferometric measurements

Source: Arie, Ady - Department of Electrical Engineering-Physical Electronics, Tel Aviv University

Collections: Engineering