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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50972


    Title: Engineered multiwavelength conversion using nonperiodic optical superlattice optimized by genetic algorithm
    Authors: Lai,JY;Liu,YJ;Wu,HY;Chen,YH;Yang,SD
    Contributors: 光電科學與工程學系
    Date: 2010
    Issue Date: 2012-03-27 18:14:16 (UTC+8)
    Publisher: 國立中央大學
    Abstract: We propose and experimentally demonstrate a new scheme for flexible multiwavelength conversion that uses the genetic algorithm with two target functions to optimize the nonperiodic optical superlattice (NOS). Compared to the widely used aperiodic optical superlattice approach, our scheme can achieve similar to 15% higher overall conversion efficiency, better spectral fidelity, and allows for further improvement of the performances if a larger genetic pool is used. Numerical analysis also shows that the resulting conversion efficiency spectrum is rather insensitive to typical fabrication errors, and is distorted under pump depletion in a similar scale as that of a periodic quasi-phase matching grating. Experimentally measured conversion efficiency spectra of the two fabricated NOS devices are in good agreement with the target curves. (C) 2010 Optical Society of America
    Relation: OPTICS EXPRESS
    Appears in Collections:[光電科學與工程學系] 期刊論文

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