Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1540464 | Optics Communications | 2007 | 5 Pages |
Abstract
A comprehensive technique has been used to detect diffraction from the second and the third nonlinear spatial harmonic components, along with the fundamental harmonic of volume photorefractive gratings recorded in a channel waveguide in a LiNbO3 substrate. For the first time to our knowledge, efficient diffraction from the higher spatial harmonic components of a photorefractive grating has been detected in reflection geometry. The dependence of a Bragg wavelength shift on the order of nonlinearity is also reported.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
P. Arora, V.M. Petrov, J. Petter, T. Tschudi,