Dual-mode coupled-resonator integrated optical filters

Alonso-Ramos, Carlos C. and Morichetti, Francesco F. and Ortega-Moñux, Alejandro A. and Molina-Fernández, Íñigo I. and Strain, Michael John M.J. and Melloni, Andrea A. (2014) Dual-mode coupled-resonator integrated optical filters. IEEE Photonics Technology Letters, 26 (9). pp. 929-932. ISSN 1041-1135 (https://doi.org/10.1109/LPT.2014.2310778)

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Abstract

A photonic integrated architecture realizing the concept of coupled-resonator dual-mode optical filters is presented. The proposed structure consists of a chain of directly coupled microring resonators with a partial reflector embedded in the last resonator. The contradirectional coupling induced by the reflector makes the effective order of the filter double with respect to the number of coupled resonators. Since the counterpropagating modes share the same physical cavity, the resonant frequencies are intrinsically aligned, sensitivity of the filter to fabrication tolerances is reduced, and control of the structure is eased with respect to coupled resonator filters of the same order. Second-and fourth-order dual-mode filters made of microring resonators loaded with a Bragg grating are experimentally demonstrated on a silicon-on-insulator photonic platform.

ORCID iDs

Alonso-Ramos, Carlos C., Morichetti, Francesco F., Ortega-Moñux, Alejandro A., Molina-Fernández, Íñigo I., Strain, Michael John M.J. ORCID logoORCID: https://orcid.org/0000-0002-9752-3144 and Melloni, Andrea A.;
  • Item type:Article
    ID code:48249
    Dates:
    Date
    Event
    1 May 2014
    Published
    11 March 2014
    Published Online
    4 March 2014
    Accepted
    Keywords:light propagation, optical filters, optical resonators, coupled resonator filters, integrated optics, Optics. Light, Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics > Institute of Photonics
    University of Strathclyde > University of Strathclyde
    Depositing user: Pure Administrator
    Date deposited:22 May 2014 13:56
    Last modified:26 Mar 2023 01:27
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/48249
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