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arXiv · 1606.06241

Single-mode and single-polarization photonics with anchored-membrane waveguides

Jeff Chiles·Sasan Fathpour
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Abstract

An integrated photonic platform with anchored-membrane structures, the T-Guide, is proposed and numerically investigated. These compact air-clad structures have high index contrast and are much more stable than prior membrane-type structures. Their semi-infinite geometry enables single-mode and single-polarization (SMSP) operation over unprecedented bandwidths. Modal simulations quantify this behavior, showing that an SMSP window of 2.75 octaves (1.2 - 8.1 {\mu}m) is feasible for silicon T-Guides, spanning almost the entire transparency range of silicon. Dispersion engineering for T-Guides yields broad regions of anomalous group velocity dispersion, rendering them a promising platform for nonlinear applications, such as wideband frequency conversion.

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Jeff Chiles, Sasan Fathpour. 2016-06-20. Single-mode and single-polarization photonics with anchored-membrane waveguides. https://doi.org/10.1364/oe.24.019337

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