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Conferences > OFS > 2023 > W4 > W4.53

Optical fiber coupler for ppm-level carbon dioxide gas sensing

Yaqi Tang, Chao Wang, Shoulin Jiang, Wenwei Zhang, and Qingxia Liu

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Abstract

We report an optical-fiber spectroscopic carbon dioxide gas sensor based on a near-infrared dispersion turning coupler. The noise-equivalent absorption coefficient of 3.47×10-7 cm-1 is achieved with a sample having the coupling-region-length of about 6 mm.

© 2023 The Author(s)

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