Compact Single-Mode Silicon Hybrid Rib/Strip Waveguide With Adiabatic Bends

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....

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Bibliographic Details
Main Authors: W. Bogaerts, S. K. Selvaraja
Format: Article
Language:English
Published: IEEE 2011-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/5752805/
Description
Summary: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.
ISSN:1943-0655