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Segmented Waveguides in Thin Silicon-on-Insulator

Research Area: Nanophotonics Year: 2005
Type of Publication: Article Keywords: silicon photonics, Bloch mode, segmented waveguide, electrical contact
Authors: Hochberg, Michael; Baehr-Jones, Tom; Walker, Chris; Witzens, Jeremy; Gunn, Cary; Scherer, Axel
Journal: Journal of the Optical Society of America B Volume: 22
Number: 7 Pages: 1493-1497
Month: July
Abstract:
We have developed new silicon-on-insulator waveguide designs for simultaneously achieving both low-loss optical confinement and electrical contacts, and we present a design methodology based on calculating the Bloch modes of such segmented waveguides. With this formalism, waveguides are designed in a single thin layer of silicon-on-insulator to achieve both optical confinement and minimal insertion loss. Waveguides were also fabricated and tested, and the measured data were found to closely agree with theoretical predictions, demonstrating input insertion loss and propagation loss better than 0.1 dB and -16 dB/cm, respectively.
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