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      A Compact Silicon-on-insulator Polarization Splitter

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      Author
      Kiyat, I.
      Aydınlı, Atilla
      Dagli, N.
      Date
      2005
      Source Title
      IEEE Photonics Technology Letters
      Print ISSN
      1041-1135
      Publisher
      IEEE
      Volume
      17
      Issue
      1
      Pages
      100 - 102
      Language
      English
      Type
      Article
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      Abstract
      A compact directional coupler-based polarization splitter is designed and realized using silicon-on-insulator (SOI) waveguides. Even though silicon does not have any material birefringence, the high index contrast obtained in the SOI platform and reduced waveguide dimensions makes it possible to induce significant birefringence. Polarization splitting is achieved by making use of this geometry-induced birefringence. In this work, we demonstrate polarization splitting in devices as short as 120 gm. Even smaller devices can be made using submicron-thick Si waveguides.
      Keywords
      Birefringence
      Directional couplers
      Integrated optics
      Polarization splitters
      Silicon-on-insulator (soi) Technology
      Permalink
      http://hdl.handle.net/11693/11359
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/GROUP4.2008.4638178
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