Hollow waveguides for gas sensing and near-IR applications

David J. Haan; James A. Harrington

doi:10.1117/12.346725

21 April 1999 Hollow waveguides for gas sensing and near-IR applications

David J. Haan, James A. Harrington

Proceedings Volume 3596, Specialty Fiber Optics for Medical Applications; (1999) https://doi.org/10.1117/12.346725
Event: BiOS '99 International Biomedical Optics Symposium, 1999, San Jose, CA, United States

Abstract

Coiled hollow glass waveguides (HGWs) were studied for use as gas sensors in the near and mid-IR regions of the spectrum. An analytic expression was obtained for the loss as a function of the number of turns, N, in the coil. The expected linear dependence of loss on N holds for radii greater than 13 cm, but deviates for smaller radii. The loss of HGWs is also shown to depend on silvering time and surface roughness.

Citation Download Citation

David J. Haan and James A. Harrington "Hollow waveguides for gas sensing and near-IR applications", Proc. SPIE 3596, Specialty Fiber Optics for Medical Applications, (21 April 1999); https://doi.org/10.1117/12.346725

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