Subwavelength grating Bragg grating filters in silicon-on-insulator

J. Wang, I. Glesk, L. R. Chen

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Narrowband filters based on Bragg gratings (BGs) in subwavelength grating (SWG) waveguides in silicon-on-insulator are reported. The SWG BGs are fabricated using electron beam lithography with a single etch. For SWG BGs 1.12 mm in length, the measured 3 dB bandwidths are ~ 0.5 nm and have a peak reflectivity as high as 94.4% in the C-band.
Original languageEnglish
Pages (from-to)712-714
Number of pages3
JournalElectronics Letters
Issue number9
Publication statusPublished - 30 Apr 2015


  • Bragg gratings
  • subwavelength grating
  • waveguides
  • silicon-on-insulator
  • electron beam lithography

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