Tunable complex-valued multi-tap microwave photonic filter based on single silicon-oninsulator microring resonator

Juan Lloret, Juan Sancho, Minhao Pu, Ivana Gasulla, Kresten Yvind, Salvador Sales, José Capmany

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Abstract

A complex-valued multi-tap tunable microwave photonic filter based on single silicon-on-insulator microring resonator is presented. The degree of tunability of the approach involving two, three and four taps is theoretical and experimentally characterized, respectively. The constraints of exploiting the optical phase transfer function of a microring resonator aiming at implementing complex-valued multi-tap filtering schemes are also reported. The trade-off between the degree of tunability without changing the free spectral range and the number of taps is studied in-depth. Different window based scenarios are evaluated for improving the filter performance in terms of the side-lobe level.
Original languageEnglish
JournalOptics Express
Volume19
Issue number13
Pages (from-to)12402-12407
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/oe/abstract.cfm?URI=oe-19-13-12402. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Keywords

  • Analog optical signal processing
  • Integrated optics devices
  • Resonators

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