High quality waveguides for the mid-infrared wavelength range in a silicon-on-sapphire platform

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.

9 pages, 6 figures, 18 references

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