Soft proton exchanged channel waveguides in congruent lithium tantalate for frequency doubling
- Authors: Busacca, A; Stivala, S; Curcio, L; Minzioni, P; Nava, G; Cristiani, I; Assanto, G
- Publication year: 2010
- Type: Articolo in rivista (Articolo in rivista)
- OA Link: http://hdl.handle.net/10447/57522
Abstract
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 9.5pm/V, demonstrating that the nonlinear optical properties of lithium tantalate are left nearly unaltered by the process.