Optical filter based on two-dimensional photonic crystal surface-mode cavity in amorphous silicon-on-silica structure

Research output: Research - peer-reviewJournal article – Annual report year: 2007

Without internal affiliation

DOI

  • Author: Zhang, Ziyang

    KTH - Royal Institute of Technology, Sweden

  • Author: Dainese, Matteo

    KTH - Royal Institute of Technology, Sweden

  • Author: Wosinski, Lech

    KTH - Royal Institute of Technology, Sweden

  • Author: Xiao, Sanshui

    KTH - Royal Institute of Technology

  • Author: Qiu, Min

    KTH - Royal Institute of Technology, Sweden

  • Author: Swillo, Marcin

    PhoXtal Communications AB, Sweden

  • Author: Andersson, Ulf

    KTH - Royal Institute of Technology, Sweden

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An optical filter based on side coupling between silicon wire waveguide and two-dimensional photonic crystal surface-mode cavity is presented. The design is optimized numerically by parallel three-dimensional finite-different time-domain simulations. The device is then fabricated on amorphous silicon-on-silica structure. The drop wavelength is observed around 1580 nm. The extinction ratio of the filter is larger than 10 dB and the intrinsic quality factor of the surface-mode cavity is approximately 2000.

Original languageEnglish
Article number041108
JournalApplied Physics Letters
Volume90
Issue number4
Number of pages4
ISSN0003-6951
DOIs
StatePublished - 2007
Externally publishedYes
CitationsWeb of Science® Times Cited: 22
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