In-line fluidic absorption coefficient sensor based on optical microfiber

Zhengtong Wei; Zhangqi Song; Xueliang Zhang; Zhou Meng

doi:10.1117/12.975164

7 November 2012 In-line fluidic absorption coefficient sensor based on optical microfiber

Zhengtong Wei, Zhangqi Song, Xueliang Zhang, Zhou Meng

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842183 (2012) https://doi.org/10.1117/12.975164
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

An in-line fluidic absorption coefficient sensor based on the optical microfiber (OM) is proposed. We calculate the insertion loss of the OM per millimeter after immerged into liquid with various absorption coefficients. Then a 1.8μm diameter OM with 10 millimeters uniform waist region is used to analyze the absorption of pure water, and the absorption spectrum from 1525nm-1565nm is achieved from the experiment, agreeing well with the reported absorption coefficient. The in-line fluidic absorption coefficient sensor has potentially wide sensing range by controlling the construction of OM for many kinds of absorptive liquids with lower refractive index than silica.

Citation Download Citation

Zhengtong Wei, Zhangqi Song, Xueliang Zhang, and Zhou Meng "In-line fluidic absorption coefficient sensor based on optical microfiber", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842183 (7 November 2012); https://doi.org/10.1117/12.975164

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