J4 ›› 2011, Vol. 28 ›› Issue (5): 612-616.

• 非线性光学 • 上一篇    下一篇

基于一维非线性光子晶体的光学二极管的优化设计

陈宪锋,汪萨克,王光,沈小明   

  1. 常州大学数理学院,江苏 常州 213164
  • 收稿日期:2010-07-22 修回日期:2010-09-06 出版日期:2011-09-28 发布日期:2011-08-18
  • 通讯作者: 陈宪锋(1970-)副教授,主要从事光学材料方面的研究。 E-mail:cxf@jpu.edu.cn
  • 基金资助:

    江苏省高校自然科学基础研究项目(07KJD140036)和江苏工业学院科技计划项目(JS200802)资助课题

Optimal design of optical diodes based on one-dimensional nonlinear photonic crystals

CHEN Xian-feng, WANG Sa-ke, WANG Guang,SHEN Xiao-ming   

  1. School of Physics and Mathematics, Chanzhou University, Changzhou 213164, China
  • Received:2010-07-22 Revised:2010-09-06 Published:2011-09-28 Online:2011-08-18

摘要:

基于F-P腔理论研究了不对称非线性缺陷光子晶体的光学二极管效应。要有效提高光学二极管的正反向透射比,同时又要保证正向透射率不太低,应增大入射光频率的预置量,适当提高缺陷两侧结构的不对称性,并使入射光强在相应变化范围内靠近低值。数值模拟结果支持了该理论的分析。

关键词: 非线性光学, 光学二极管, 双稳态, F-P腔

Abstract:

Based on the theory of Fabry-Perot cavity, the optical diode effects of an asymmetric photonic crystal with a Kerr nonlinear defect layer are investigated. In order to effectively improve the anisotropic transmission and insure transmittance of forward incident light not too low, some methods may be used such as increasing the frequency shifting of incident light, enhancing properly the asymmetry at both sides of the defect layer, and making the incident light intensity near the low-value in the range of corresponding variations. The theoretical analysis is supported by the numerical simulation results.

Key words: nonlinear optics, optical diode, bistability, Fabry-Perot cavity

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