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Proceedings Paper

Backscatter in integrated optical waveguides and circuits
Author(s): Antonio Canciamilla; Matteo Torreggiani; Carlo Ferrari; Francesco Morichetti; Raffaella Costa; Andrea Melloni
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Paper Abstract

Backscatter in integrated optical waveguides is responsible of losses and distortion of the spectral circuit response. In this contribution we present measurements of the backscattered power from medium and high index contrast waveguides and an equivalent circuit describing the statistical behavior of such effect is proposed. The measurements are carried out with a cavitometric technique allowing to space resolve the local backreflection distributed along the waveguide. The equivalent circuit is composed by an ideal waveguide with a central lumped reflector owning a random phase. We investigated the spectral response of simple circuits and ring resonators, both numerically and experimentally.

Paper Details

Date Published: 9 February 2009
PDF: 11 pages
Proc. SPIE 7218, Integrated Optics: Devices, Materials, and Technologies XIII, 72180N (9 February 2009); doi: 10.1117/12.809895
Show Author Affiliations
Antonio Canciamilla, Politecnico di Milano (Italy)
Matteo Torreggiani, Politecnico di Milano (Italy)
Carlo Ferrari, Politecnico di Milano (Italy)
Francesco Morichetti, Politecnico di Milano (Italy)
CoreCom (Italy)
Raffaella Costa, CoreCom (Italy)
Andrea Melloni, Politecnico di Milano (Italy)

Published in SPIE Proceedings Vol. 7218:
Integrated Optics: Devices, Materials, and Technologies XIII
Jean-Emmanuel Broquin; Christoph M. Greiner, Editor(s)

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