Carbon dioxide detection using a co-doped Tm-Ho optical fiber

Theodore F. Morse; Kyunghwan Oh; Lawrence J. Reinhart

doi:10.1117/12.221696

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25 September 1995 Carbon dioxide detection using a co-doped Tm-Ho optical fiber

Theodore F. Morse, Kyunghwan Oh, Lawrence J. Reinhart

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Proceedings Volume 2510, Fiber Optic and Laser Sensors XIII; (1995) https://doi.org/10.1117/12.221696
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

A Tm-Ho co-doped optical fiber laser exhibits significant fluorescence between 1.6 and 2.1 micrometers . Such a fiber can from the basis of a gas detection system, since many gases of interest have overtone absorption bands in this wavelength region: in particular, carbon dioxide, methane, arsine, replacement gases for refrigerants, and nitrous oxide. Using this fiber we have demonstrated a simple shceme for the detection of overtone absorption bands of carbon dioxide in the 2 micrometers region. The detection sensitivity for carbon dioxide with this present method is of the order of 1%.

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Theodore F. Morse, Kyunghwan Oh, and Lawrence J. Reinhart "Carbon dioxide detection using a co-doped Tm-Ho optical fiber", Proc. SPIE 2510, Fiber Optic and Laser Sensors XIII, (25 September 1995); https://doi.org/10.1117/12.221696

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