Compact Single-Mode Silicon Hybrid Rib/Strip Waveguide With Adiabatic Bends
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Open Access
- 21 April 2011
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Journal
- Vol. 3 (3) , 422-432
- https://doi.org/10.1109/jphot.2011.2142931
Abstract
We report a low-loss, hybrid silicon waveguide geometry that consists of straight rib sections with a propagation loss of 0.27 ± 0.012 dB/cm and compact photonic wire bends. The rib and wire waveguides are both single mode and connected through a short double-etched linear taper section. To reduce bend losses, circular bends were combined with variable adiabatic seminatural spline shapes with only a limited footprint penalty.Keywords
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