Multi-wavelength filters in silicon using superposition sidewall Bragg grating devices

Michael John Strain, Stephen Thoms, Douglas S. Macintyre, Marc Sorel

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Multiple-filter stopbands, with the potential to be nonuniformly spaced in frequency, are realized in a single integrated Bragg grating device on silicon. By utilizing a superposition of sidewall relief grating functions, N individual filter responses can be fabricated with a device length N× shorter than the equivalent serial set of gratings. Arbitrary combinations of eight-basis filter responses were demonstrated as selected by an eight-bit pseudorandom number generator, showing the flexibility of the complex Bragg grating device design.
Original languageEnglish
Pages (from-to)413-416
Number of pages4
JournalOptics Letters
Volume39
Issue number2
DOIs
Publication statusPublished - 15 Jan 2014

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Keywords

  • integrated optics devices
  • Bragg reflectors
  • wavelength filtering devices

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