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Proceedings Paper

Wide tunable thermo-optical filters with polymer micro-ring resonators
Author(s): Azar Maalouf; Dominique Bosc; Philippe Grosso; Michel Gadonna; Monique Thual; Frederic Henrio; Séverine Haesaert
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Paper Abstract

Polymers are increasingly attractive for the creation of optical integrated circuits particularly owing to a high thermo-optical coefficient (-10-4 °C-1) which allows to design optical functions tunable according to temperature. For example, tunable filters or multiplexers are attractive in telecom applications for bringing broadband services to subscribers. Moreover, the large available range of refractive index, leads to large scale of integration, lowering the fabrication costs and could be an alternative solution to semiconductor or inorganic dielectric technologies. In this work, optical functions were created using standard photolithography and Reactive Ion Etching (RIE). Photolithography was used with particular conditions to improve pattern resolution. Firstly, the details of making optical polymer waveguides and wavelength micro-ring based filters are given. Optical loss measurements of waveguides and optical characterisation of micro-ring resonators are also shown for which the results are in agreement with the modelling. Secondly, the same micro-ring resonators were observed with the temperature change and we noticed that the variation of resonance wavelength is about 0.2 nm.°C-1. This is just what is needed for the creation of tunable filters or multiplexers without electrical high power, considering the very small size of the component.

Paper Details

Date Published: 1 May 2008
PDF: 9 pages
Proc. SPIE 6996, Silicon Photonics and Photonic Integrated Circuits, 69961S (1 May 2008); doi: 10.1117/12.781169
Show Author Affiliations
Azar Maalouf, Ecole Nationale Supérieure des Sciences Appliquées et de Technologie (France)
Dominique Bosc, Ecole Nationale Supérieure des Sciences Appliquées et de Technologie (France)
Philippe Grosso, Ecole Nationale Supérieure des Sciences Appliquées et de Technologie (France)
Michel Gadonna, Ecole Nationale Supérieure des Sciences Appliquées et de Technologie (France)
Monique Thual, Ecole Nationale Supérieure des Sciences Appliquées et de Technologie (France)
Frederic Henrio, Ecole Nationale Supérieure des Sciences Appliquées et de Technologie (France)
Séverine Haesaert, Ecole Nationale Supérieure des Sciences Appliquées et de Technologie (France)


Published in SPIE Proceedings Vol. 6996:
Silicon Photonics and Photonic Integrated Circuits
Giancarlo C. Righini; Seppo K. Honkanen; Lorenzo Pavesi; Laurent Vivien, Editor(s)

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