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Proceedings Paper

Thermo-optic silica PLC devices for applications in high speed optical signal processing
Author(s): Chantal Blanchetiere; Claire L. Callender; Sarkis Jacob; Christopher J. Ledderhof; Patrick Dumais; Dritan Celo; Lawrence R. Chen; Payman Samadi
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Paper Abstract

The optimization of a 2×2 silica-on-silicon Mach-Zehnder interferometer (MZI) thermo-optic switch is presented. The device consists of 2 multimode interference (MMI) couplers as splitter and combiner with metal heater strips for phase control. The switching characteristics of the devices have been examined in detail as a function of several parameters. The electrical power consumption of the switch has been reduced by a factor of 2 by etching trenches alongside the waveguide heaters located on the arms of the MZI, and the polarization dependent loss has been controlled and reduced through adjustment of top cladding properties. The effect on the response time of the switch of these design changes has been investigated. Detailed characterization of the devices will be presented, and trade-offs in optimization discussed. Incorporation of these device elements into increasingly complex components for new applications in optical signal processing will be demonstrated.

Paper Details

Date Published: 8 September 2011
PDF: 9 pages
Proc. SPIE 8007, Photonics North 2011, 80070Q (8 September 2011); doi: 10.1117/12.903450
Show Author Affiliations
Chantal Blanchetiere, Communications Research Ctr. Canada (Canada)
Claire L. Callender, Communications Research Ctr. Canada (Canada)
Sarkis Jacob, Communications Research Ctr. Canada (Canada)
Christopher J. Ledderhof, Communications Research Ctr. Canada (Canada)
Patrick Dumais, Communications Research Ctr. Canada (Canada)
Dritan Celo, Communications Research Ctr. Canada (Canada)
Lawrence R. Chen, McGill Univ. (Canada)
Payman Samadi, McGill Univ. (Canada)

Published in SPIE Proceedings Vol. 8007:
Photonics North 2011
Raman Kashyap; Michel Têtu; Rafael N. Kleiman, Editor(s)

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