High quality waveguides for the mid-infrared wavelength range in a silicon-on-sapphire platform
Fangxin Li, Stuart D. Jackson, Christian Grillet, Eric Magi, Darren, Hudson, Steven J. Madden, Yashodhan Moghe, Christopher OBrien, Andrew Read,, Steven G. Duvall, Peter Atanackovic, Benjamin J. Eggleton, and David J. Moss
TL;DR
This paper presents ultra-low loss silicon-on-sapphire nanowire waveguides optimized for mid-infrared wavelengths, enabling improved performance for integrated optical applications.
Contribution
The authors demonstrate record low propagation losses in silicon-on-sapphire nanowires across multiple mid-infrared wavelengths, advancing integrated mid-IR photonics.
Findings
Losses as low as 0.8dB/cm at 1550nm
Losses of 1.1 to 1.4dB/cm at 2080nm
Losses below 2dB/cm at 5.18 microns
Abstract
We report record low loss silicon-on-sapphire nanowires for applications to mid infrared optics. We achieve propagation losses as low as 0.8dB/cm at 1550nm, 1.1 to 1.4dB/cm at 2080nm and < 2dB/cm at = 5.18 microns.
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Taxonomy
TopicsPhotonic and Optical Devices · Photonic Crystals and Applications · Nanowire Synthesis and Applications