Nonlinear optical properties of (H+,He+)-implanted planar waveguides in z-cut lithium niobate: annealing effect
2001 (English)In: Journal of the Optical Society of America. B, Optical physics, ISSN 0740-3224, Vol. 18, no 12, 1832-1840 p.Article in journal (Refereed) Published
Reflection second-harmonic generation from the polished waveguide end face was used to investigate the nonlinear properties of LiNbO3-implanted waveguides fabricated by use of 2-MeV He+ and 1.5-Mev H+ beams. Results were compared with waveguides obtained by protonic exchange in benzoic acid, In contrast to the exchanged sample where the nonlinearity is strongly reduced, the implanted samples showed that the guiding region presents rather the same response as the substrate. The area where the optical barrier is located showed a strongly enhanced second-harmonic signal that was likely to be due to structural modifications in this area. Moreover, the investigation of the annealing effect showed strong interaction of protons with the lattice compared with that of He+ ions.
Place, publisher, year, edition, pages
2001. Vol. 18, no 12, 1832-1840 p.
proton-exchanged linbo3, knbo3 wave-guides, refractive-index profiles, implantation, coefficient, parameters
IdentifiersURN: urn:nbn:se:kth:diva-21167ISI: 000172669400009OAI: oai:DiVA.org:kth-21167DiVA: diva2:339864
QC 201005252010-08-102010-08-102015-03-30Bibliographically approved