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Nonlinear photonic structures for all-optical Tal Ellenbogen*
 

Summary: Nonlinear photonic structures for all-optical
deflection
Tal Ellenbogen*
, Ayelet Ganany-Padowicz, Ady Arie
Department of Physical Electronics, Faculty of Engineering, University of Tel-Aviv, Tel-Aviv 69978, Israel
*Corresponding author: ellenbog@post.tau.ac.il
Abstract: We present a new type of photonic structures in quadratic
nonlinear materials that enable efficient and continuous all-optical
deflection. The structures are based on two-dimensional modulation of the
nonlinear coefficient and consist of a set of symmetric or anti-symmetric
arcs that form a periodic pattern in the propagation direction and a chirped
pattern in the transverse direction. Stoichiometric lithium tantalite structures
were tested by second harmonic generation. Varying the pump wavelength
from 1545 nm to 1536 nm resulted in continuous angular deflection of the
second harmonic wave up to ~2.3. Continuous deflection was also obtained
by varying the crystal temperature at a fixed pump wavelength.
2008 Optical Society of America
OCIS codes: (230.1150) All-optical devices; (190.4223) Nonlinear wave mixing;
(190.4360) Nonlinear optics, devices; (060.1155) All-optical networks.
References and links

  

Source: Arie, Ady - Department of Electrical Engineering-Physical Electronics, Tel Aviv University

 

Collections: Engineering