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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 13 — Jun. 30, 2014
  • pp: 15335–15345

Subwavelength grating filtering devices

Junjia Wang, Ivan Glesk, and Lawrence R. Chen  »View Author Affiliations

Optics Express, Vol. 22, Issue 13, pp. 15335-15345 (2014)

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We propose and simulate the characteristics of optical filters based on subwavelength gratings. In particular, we demonstrate through numerical simulations the feasibility of implementing SWG Bragg gratings in silicon-on-insulator (SOI). We also propose SWG ring resonators in SOI and verify their operation using numerical simulations and experiments. The fabricated devices exhibit an extinction ratio as large as 30 dB and a Q-factor as high as ~20,000. These fundamental SWG filters can serve as building blocks for more complex devices.

© 2014 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(130.3120) Integrated optics : Integrated optics devices
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Diffraction and Gratings

Original Manuscript: March 25, 2014
Revised Manuscript: May 11, 2014
Manuscript Accepted: June 10, 2014
Published: June 17, 2014

Junjia Wang, Ivan Glesk, and Lawrence R. Chen, "Subwavelength grating filtering devices," Opt. Express 22, 15335-15345 (2014)

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