Special Section on Nanoengineering: Fabrication, Properties, Optics, and Devices

Optical characterization of silicon-on-insulator–based single and coupled racetrack resonators

[+] Author Affiliations
Mattia Mancinelli, Romain Guider, Paolo Bettotti, Marco Masi, Manga Rao Vanacharla, Lorenzo Pavesi

University of Trento, Nanoscience Laboratory, Department of Physics, Via Sommarive 14, 38123 Povo, Trento, Italy

Jean-Marc Fedeli

Commissariat à l'Energie Atomique et aux Energies Alternatives, Leti, Minatec, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France

Dries Van Thourhout

Ghent University-IMEC, Department of Information Technolgy (INTEC), Photonics Research Group, St-Pietersnieuwstraat 41, 9000 Gent, Belgium

J. Nanophoton. 5(1), 051705 (June 27, 2011). doi:10.1117/1.3596700
History: Received October 18, 2010; Revised April 15, 2011; Accepted May 11, 2011; Published June 27, 2011; Online June 27, 2011
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Silicon photonics is the emerging optical interconnect technology where integrated nanophotonic components allow reaching high device density and improved optical functionalities. One key component is the optical microresonator. A particular kind of microresonator is the racetrack resonator where straight waveguide sections are used to achieve a large value of the coupling coefficient with a bus waveguide for any light polarization state. It is our aim to study the performances of racetrack resonators fabricated on silicon on insulator via CMOS processing. We experimentally investigated different multiple resonator designs where box-shaped filter characteristic, Vernier effect, and coupled resonator induced transparency effects are obtained. We demonstrate that racetrack resonators are instrumental to several different functions in nanophotonics and that the actual lithographic process is fully capable of building these structures.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Topics

Resonators ; Silicon

Citation

Mattia Mancinelli ; Romain Guider ; Paolo Bettotti ; Marco Masi ; Manga Rao Vanacharla, et al.
"Optical characterization of silicon-on-insulator–based single and coupled racetrack resonators", J. Nanophoton. 5(1), 051705 (June 27, 2011). ; http://dx.doi.org/10.1117/1.3596700


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