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arXiv · 1903.09665

Near-Infrared Scanning Cavity Ringdown for Optical Loss Characterization of Supermirrors

Gar-Wing Truong·Georg Winkler·Tobias Zederbauer·Dominic Bachmann·Paula Heu·David Follman·Mark White·Oliver Heckl·Garrett Cole
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Abstract

A cavity ringdown system for probing the spatial variation of optical loss across high-reflectivity mirrors is described. This system is employed to examine substrate-transferred crystalline supermirrors and quantify the effect of manufacturing process imperfections. Excellent agreement is observed between the ringdown-generated spatial measurements and differential interference contrast microscopy images. A 2 mm diameter ringdown scan in the center of a crystalline supermirror reveals highly uniform coating properties with excess loss variations below 1 ppm.

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Gar-Wing Truong, Georg Winkler, Tobias Zederbauer, Dominic Bachmann, Paula Heu, David Follman, Mark White, Oliver Heckl, Garrett Cole. 2019-03-22. Near-Infrared Scanning Cavity Ringdown for Optical Loss Characterization of Supermirrors. https://doi.org/10.1364/oe.27.019141

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