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Proceedings Paper

The impact of metallic contacts on propagation losses of an underlying photonic crystal waveguide
Author(s): Peter Kaspar; Roman Kappeler; Fouad Karouta; Franck Robin; Patric Strasser; Heinz Jäckel
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Paper Abstract

In view of an electrically pumped photonic crystal-based semiconductor optical amplifier (SOA), we investigate optical mode propagation in 2D PhC waveguides in the presence of metal contacts for carrier injection. Our photonic crystal (PhC) devices are manufactured in the InP/InGaAsP material system. For the loss measurements, we have fabricated contact strips as narrow as 300nm with a sub-50nm placing accuracy on top of W3 waveguides. We study the influence of their position and width on optical power transmission through passive waveguides with respect to viability for future active devices. Our experimental results are complemented by numerical studies (FDTD, plane-wave expansion method).

Paper Details

Date Published: 29 August 2008
PDF: 10 pages
Proc. SPIE 7031, Active Photonic Crystals II, 70310A (29 August 2008); doi: 10.1117/12.793687
Show Author Affiliations
Peter Kaspar, ETH Zürich (Switzerland)
Roman Kappeler, ETH Zürich (Switzerland)
Fouad Karouta, Technische Univ. Eindhoven (Netherlands)
Franck Robin, ETH Zürich (Switzerland)
Patric Strasser, ETH Zürich (Switzerland)
Heinz Jäckel, ETH Zürich (Switzerland)

Published in SPIE Proceedings Vol. 7031:
Active Photonic Crystals II
Sharon M. Weiss; Ganapathi S. Subramania; Florencio García-Santamaría, Editor(s)

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