Open AccessSecond harmonic generation in reverse proton exchanged Lithium Niobate waveguides
Author(s) -
A. Di Lallo,
Alfonso Cino,
Claudio Conti,
Gaetano Assanto
Publication year - 2001
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.8.000232
Subject(s) - lithium niobate , optics , second harmonic generation , planar , materials science , nonlinear optics , proton , sum frequency generation , waveguide , high harmonic generation , lithium (medication) , optoelectronics , physics , laser , computer graphics (images) , quantum mechanics , computer science , medicine , endocrinology
We investigate efficient second harmonic generation in reverse proton exchanged Lithium Niobate waveguides. In z-cut crystals, the resulting buried and surface guides support TM and TE polarizations, respectively, and are coupled through the d 31 nonlinear element. Numerically estimated conversion efficiencies in planar structures operating at 1.32microm reach 90% in 2cm or a normalized 14% microm/Wcm.