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 journalArticlepeer-review

35 Citations (Scopus)


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
Issue number2
Publication statusPublished - 15 Jan 2014


  • integrated optics devices
  • Bragg reflectors
  • wavelength filtering devices


Dive into the research topics of 'Multi-wavelength filters in silicon using superposition sidewall Bragg grating devices'. Together they form a unique fingerprint.

Cite this