Tunable silicon photonics directional coupler driven by a transverse temperature gradient

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Orlandi, Piero and Morichetti, Francesco and Strain, Michael J. and Sorel, Marc and Melloni, Andrea and Bassi, Paolo (2013) Tunable silicon photonics directional coupler driven by a transverse temperature gradient. Optics Letters, 38 (6). pp. 863-865. (https://doi.org/10.1364/OL.38.000863)

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Abstract

A compact directional coupler fabricated on a silicon photonic platform is presented, with a power-splitting ratio that can be tuned through a transverse temperature gradient induced by a laterally shifted integrated heater. The tuning mechanism exploits the thermally induced phase velocity mismatch between the coupled modes of the silicon waveguides. The positions of the integrated heater and the waveguide design are optimized to maximize the tuning range and to reduce electric power consumption. Asynchronous devices with an intrinsic phase mismatch are demonstrated to be more efficient, providing a tunable coupled power from 0.7 to 0.01 with 36 mW maximum power dissipation.

ORCID iDs

Orlandi, Piero, Morichetti, Francesco, Strain, Michael J. ORCID logoORCID: https://orcid.org/0000-0002-9752-3144, Sorel, Marc, Melloni, Andrea and Bassi, Paolo;
  • Item type:Article
    ID code:44391
    Dates:
    Date
    Event
    15 March 2013
    Published
    Notes:This paper was published in Optics Letters 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://dx.doi.org/10.1364/OL.38.000863. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics > Institute of Photonics
    Depositing user: Pure Administrator
    Date deposited:30 Jul 2013 14:00
    Last modified:11 Nov 2024 10:27
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/44391
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