Bandwidth and wavelength-tunable optical bandpass filter based on silicon microring-MZI structure

Yunhong Ding, Minhao Pu, Liu Liu, Jing Xu, Christophe Peucheret, Xinliang Zhang, Dexiu Huang, Haiyan Ou

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Abstract

A novel and simple bandwidth and wavelength-tunable optical bandpass filter based on silicon microrings in a Mach-Zehnder interferometer (MZI) structure is proposed and demonstrated. In this filter design, the drop transmissions of two microring resonators are combined to provide the desired tunability. A detailed analysis and the design of the device are presented. The shape factor and extinction ratio of the filter are optimized by thermally controlling the phase difference between the two arms of the MZI. Simultaneous bandwidth and wavelength tunability with in-band ripple control is demonstrated by thermally tuning the resonance offset between the two microring resonators.
Original languageEnglish
JournalOptics Express
Volume19
Issue number7
Pages (from-to)6462-6470
ISSN1094-4087
DOIs
Publication statusPublished - 2011

Bibliographical note

This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=oe-19-7-6462. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Keywords

  • Integrated optics devices
  • Resonators
  • Components
  • Wavelength filtering devices

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