Open AccessSoft proton exchanged channel waveguides in congruent lithium tantalate for frequency doubling
Author(s) -
Alessandro Busacca,
Salvatore Stivala,
Luciano Curcio,
P. Minzioni,
Giovanni Nava,
Ilaria Cristiani,
Gaetano Assanto
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.025967
Subject(s) - lithium tantalate , optics , tantalate , materials science , wavelength , lithium niobate , nonlinear optics , lithium (medication) , phase (matter) , proton , optoelectronics , laser , ferroelectricity , physics , medicine , quantum mechanics , dielectric , endocrinology
We report on stable optical waveguides fabricated by soft-proton exchange in periodically-poled congruent lithium tantalate in the α-phase. The channel waveguides are characterized in the telecom wavelength range in terms of both linear properties and frequency doubling. The measurements yield a nonlinear coefficient of about 9.5 pm/V, demonstrating that the nonlinear optical properties of lithium tantalate are left nearly unaltered by the process.