Share Email Print

Proceedings Paper

Nonlinear photonic structures for all-optical deflection
Author(s): Tal Ellenbogen; Ayelet Ganany-Padowicz; Ady Arie
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We demonstrate both experimentally and numerically continuous all-optical deflection achieved in specially designed photonic structures in quadratic nonlinear materials and discuss their special properties using Fourier space analysis. We designed and manufactured the proposed structures in a Stoichiometric Lithium Tantalate crystal. The inverted domains consist of a set of arcs arranged in the propagation direction. This arrangement results in a periodic pattern in the propagation direction and a chirped pattern in the transverse direction. A second harmonic generation experiment was performed on the crystal structures to examine the phase matching properties. Varying the pump wavelength from 1545 nm to 1536 nm at 150°C resulted in continuous angular deflection of the second harmonic wave up to ~2.5°. Continuous deflection was also obtained by varying the crystal temperature at a fixed pump wavelength. These structures can be used for various all-optical deflection applications, e.g. all-optical router using two cascaded nonlinear processes: an up-conversion process of signal and control beams, where the output channel is controlled by the frequency of the controlling beam, followed by a down conversion process, creating a beam at the signal frequency in the desired channel.

Paper Details

Date Published: 21 April 2008
PDF: 8 pages
Proc. SPIE 6989, Photonic Crystal Materials and Devices VIII, 698916 (21 April 2008); doi: 10.1117/12.780808
Show Author Affiliations
Tal Ellenbogen, Univ. of Tel-Aviv (Israel)
Ayelet Ganany-Padowicz, Univ. of Tel-Aviv (Israel)
Ady Arie, Univ. of Tel-Aviv (Israel)

Published in SPIE Proceedings Vol. 6989:
Photonic Crystal Materials and Devices VIII
Richard M. De La Rue; Ceferino López; Michele Midrio; Pierre Viktorovitch, Editor(s)

© SPIE. Terms of Use
Back to Top