Subwavelength grating filtering devices

Junjia Wang; Ivan Glesk; Lawrence R. Chen

doi:10.1364/OE.22.015335

Subwavelength grating filtering devices

Junjia Wang, Ivan Glesk, Lawrence R. Chen

Electronic And Electrical Engineering

Research output: Contribution to journal › Article › peer-review

87 Citations (Scopus)

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Abstract

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.

Original language	English
Pages (from-to)	15335-15345
Number of pages	11
Journal	Optics Express
Volume	22
Issue number	13
Early online date	17 Jun 2014
DOIs	https://doi.org/10.1364/OE.22.015335
Publication status	Published - 30 Jun 2014

Keywords

gratings
integrated optics devices
wavelength filtering devices

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abstract = "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. ",

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AB - 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.

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KW - integrated optics devices

KW - wavelength filtering devices

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Subwavelength grating filtering devices

Abstract

Keywords

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