Ye Zhuo-Yi (叶卓艺)a b, Xia Shi-Qiang (夏世强)a, Song Dao-Hong (宋道红)a, Tang Li-Qin (唐莉勤)a, Lou Ci-Bo (楼慈波)a
a The MOE Key Laboratory of Weak Light Nonlinear Photonics, TEDA Applied Physics School and School of Physics, Nankai University, Tianjin 300457, China; b Innovation Center, Bureau of Economic Development and Administrative Approval, Ningbo–Hangzhou Bay New Zone Administrator Committee, Ningbo 315336, China
Abstract We report on theoretical investigations of beam control in one-dimensional tri-core photonic lattices (PLs). Linear splitting is illustrated in tri-core PLs; the effect of defect strength on the splitting is discussed in depth for single-wavelength light. We reveal that splitting disappears when the defect strength trends to zero, while reoccurring under nonlinearity. Multi-color splitting and active control are also proposed in such photonic structures.
Fund: Project supported by the State Key Program for Basic Research of China (Grant Nos. 2013CB632703 and 2010CB934101), the National Natural Science Foundation of China (Grant Nos. 10904078 and 60908002), the International Science & Technology Cooperation Program of China (Grant No. 2011DFA52870), the International Cooperation Program of Tianjin (Grant No. 11ZGHHZ01000), the "111" Project (Grant No. B07013), the Program for New Century Excellent Talents in University of China (Grant No. NCET-10-0507), and the Specialized Research Fund for the Doctorial Program of Higher Education of China (Grant No. 20120031120031).
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