Abstract

We describe the fabrication and characterization of a free-standing silica glass membrane waveguide formed using fiber fabrication processes. The membrane has a thickness of $0.6\mu \mathrm{m}$ and a width of $60\mu \mathrm{m}$ and is many meters long. The optical attenuation is measured as $0.4\mathrm{dB}∕\mathrm{m}$. Such attenuation outperforms that of conventional planar waveguides by several orders of magnitude.

© 2005 Optical Society of America

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