Abstract

Silica-based anchored-membrane waveguides ($T$-Guides) are fabricated and characterized from the visible to infrared with streak imaging. It is numerically shown that the $T$-Guides can have wideband single-mode and single-polarization (SMSP) properties over a span of 2.6 octaves. Experimentally, a polarization-dependent loss difference of up to 89±19 dB/cm is measured between orthogonal polarizations and a record SMSP window of $>1.27$ octaves is observed, limited only by the available measurement equipment. These measurements make a strong case for $T$-Guides for SMSP photonics, particularly in high-index materials such as those in our previous demonstration on silicon.

© 2016 Optical Society of America

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

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