Competition of frequency conversion and polarization coupling in periodically poled lithium niobate |
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| Authors: | Y Kong X Chen Y Xia |
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| Institution: | 1. Department of Physics, The State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication System, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, P.R. China
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| Abstract: | In this paper wave-coupling equations including polarization coupling and frequency doubling in periodically poled lithium niobate (PPLN) is proposed. Numerical solutions of the coupling equations show that there is a competition between the polarization coupling and second-harmonic generation in a PPLN under the phase-matching condition. The influences of the external electric field on the polarizations and amplitudes of three interactive waves are studied. |
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