Title :
Random quasi-phase matching in congruent lithium tantalate waveguides by proton exchange
Author :
Busacca, A.C. ; Stivala, S. ; Curcio, L. ; Livreri, P.
Author_Institution :
DIEETCAM, Univ. of Palermo, Palermo, Italy
Abstract :
A report is presented on broadband second-harmonic generation in the range between 930 and 970 nm using random quasi-phase matching in a planar waveguide fabricated by soft proton exchange in congruent lithium tantalate. Bulk and waveguide measurements are compared, outlining the averaging role of guided-wave modes and their interactions with respect to spectral acceptance and near-field profile.
Keywords :
ion exchange; lithium compounds; optical phase matching; optical planar waveguides; broadband second-harmonic generation; congruent lithium tantalate waveguides; guided-wave modes; near-field profile; planar waveguide; random quasi-phase matching; soft proton exchange; spectral acceptance; wavelength 930 nm; wavelength 970 nm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.4018
