Photonic crystal narrow band filters using biperiodic structures

被引：17
作者：
Department of Electrical Engineering, K.N. Toosi University of Technology, Seyedkhandan Dr. Shariati Ave., Tehran, Iran [1 ]
机构：
[1] Department of Electrical Engineering, K.N. Toosi University of Technology, Tehran, Seyedkhandan Dr. Shariati Ave.
来源：
J. Appl. Sci. | 2008年 / 10卷 / 1891-1897期
关键词：
FDTD; Optical devices; Optical filter; Photonic crystals; Photonic integrated circuits;
D O I：
10.3923/jas.2008.1891.1897
中图分类号：
学科分类号：
摘要：
In this study, we propose a new type of photonic crystal band-pass and band-stop filter based on biperiodic structure. Usually two types of photonic crystal band-pass filters are utilized in optical circuit. In the first one Fabry-Perot cavities are used while in the second one cavity-coupled waveguide are used. We optimize the second structure in this study. Then we show that by little changing in the band-pass structure, a band-stop filter is attained. Using Finite-Difference Time-Domain (FDTD) method we achieve output efficiency over 98% for band-pass filter and below 3% for band-stop filter. Also we investigate filter tunability parameters which affecting central frequency of these filters. Further analysis shows that the central frequency of transmission band (stop band) can be changed by altering the refractive index of bigger rods in biperiodic structure. © 2008 Asian Network for Scientific Information.
引用
收藏
页码：1891 / 1897
页数：6
相关论文
共 10 条
  • [1] Adibi A., Lee R.K., Xu Y., Yariv A., Scherer A., Design of photonic crystal optical waveguides with singlemode propagation in the photonic bandgap, IEEE Elect. Lett, 36, 16, pp. 1376-1378, (2000)
  • [2] Alvarado-Rodriguez I., Fabrication of two-dimensional photonic crystal single-defect cavities and their characterization by elastic scattering, (2003)
  • [3] Chao C., Li X., Li H., Xu K., Wu J., Lin J., Band-pass, filters based on phase-shifted photonic crystal waveguide gratings, Opt. Express, 15, 18, pp. 11278-11284, (2007)
  • [4] Costa R., Melloni A., Martinelli M., Band-pass resonant filters in photonic-crystal waveguides, IEEE Photonics Technol. Lett, 15, 3, pp. 401-403, (2003)
  • [5] Fan S., Villeneuve P.R., Joannopoulos J.D., Haus H.A., Channel drop filters in photonic crystals, Opt. Express, 3, 1, pp. 4-11, (1998)
  • [6] Mekis A., Chen J.C., Kurland I., Fan S., Villeneuve P.R., Joannopoulos J.D., High transmission through sharp bends in photonic crystal waveguides, Phys. Rev., Lett, 77, 18, pp. 3787-3790, (1996)
  • [7] Park D., Kim S., Park I., Lim H., Higher order optical resonant filters based on coupled defect resonators in photonic crystals, J. Lightwave Technol, 23, 5, pp. 1923-1928, (2005)
  • [8] Soltani M., Haque A., Momeni B., Adibi A., Xu Y., Lee R.K., Designing Complex Optical Filters Using Photonic Crystal Microcavities, (2003)
  • [9] Taflove A., Computational Electrodynamics: The Finité-Difference Time-Domain Method, (2005)
  • [10] Villeneuve P.R., Fan S., Joannopoulos J.D., Microcavities in photonic crystals: Mode symmetry, tunability and coupling efficiency, Phys. Rev. B, 54, 11, pp. 7837-7842, (1996)
1