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Self-trapping and self-deflection of a light beam in LiNbO$_{3}$ crystal
LIU Yong-Qi 1,QI Xin-Yan 1 * #,LU Yang 1,LI Sha-Sha 1,CAO Zheng 2,KONG Yong-Fa 3,ZHANG Guo-Quan 3,BAI Jin-Tao 2
1.School of Physics, Northwest University, Xi’an 710069
2.School of Physics, Northwest University, Xi’an 710069;Institute of Photonics & Photon-Technology, Northwest University, Xi’an 710069
3.The MOE Key Laboratory of Weak Light Nonlinear Photonics, Nankai University, Tianjin 300457
*Correspondence author
#Submitted by
Subject:
Funding: HSSRFDPFI Foundation (No.20116101120008), NSFC Foundation(No.11104221,11174153,61108006)
Opened online:26 December 2014
Accepted by: none
Citation: LIU Yong-Qi,QI Xin-Yan,LU Yang.Self-trapping and self-deflection of a light beam in LiNbO$_{3}$ crystal[OL]. [26 December 2014] http://en.paper.edu.cn/en_releasepaper/content/4624709
 
 
We investigated the self-trapping and the self-deflection of a laser beam in a bulk and a photo-induced one-dimensional (1D) photonic lattice (PL) in pure LiNbO$_3$ crystal, respectively. The study results demonstrate that the probe beam will be self-trapped under the pyroelectric effect. The thermo-optic effect will speed up the focusing procedure of the light beam in the sample with low concentration of deep traps and result into the beam deflection. The probe beam can form a deflected discrete soliton in the PL. The waveguide coupling effect can strengthen the deflection. The experimental results are in agreement with the numerical simulations.
Keywords:photonic lattice; solitons; beam deflection
 
 
 

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