Two Dimensional Counterpropagating Spatial Solitons in Photorefractive Crystals

M. Petrović, D. Jović, M. Belić, J. Schröder, Ph. Jander, and C. Denz

Phys. Rev. Lett. 95, 053901 – Published 25 July 2005

Abstract

We demonstrate experimentally the existence of two transverse-dimensional counterpropagating (CP) incoherent spatial solitons in a $5 \times 5 \times 23 mm$ SBN:60Ce photorefractive crystal and investigate their dynamical behavior. We carry out numerical simulations that confirm our experimental findings. Substantially different behavior from the copropagating incoherent solitons is found. A symmetry breaking transition from stable overlapping CP solitons to unstable transversely displaced CP solitons is observed. We perform linear stability analysis that predicts the threshold for the splitup transition, in qualitative agreement with numerical simulations and experimental results.

Received 16 September 2004

DOI:https://doi.org/10.1103/PhysRevLett.95.053901

Authors & Affiliations

M. Petrović¹, D. Jović¹, M. Belić^1,2, J. Schröder³, Ph. Jander³, and C. Denz³

¹Institute of Physics, Post Office Box 57, 11001 Belgrade, Serbia
²Texas A&M University at Qatar, Post Office Box 5825, Doha, Qatar
³Institute of Applied Physics, Westfälische Wilhelms-Universität Münster Corrensstr., 2/4, D-48149 Münster, Germany

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Issue

Vol. 95, Iss. 5 — 29 July 2005

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