Abstract:A tapered plastic optic fiber (POF) was developed and demonstrated for monitoring different concentrations of limonene. The working mechanism of the sensor was dependent on the evanescent field interaction between light and the POF tapered region. The tapered POF was fabricated using a polishing-etching method to accomplish different waist diameters of 0.7 mm, 0.65 mm, 0.6 mm, 0.55 mm, and 0.5 mm in a 2 cm sensing region. The experiment was carried out with a blue LED with a wavelength of 400 nm and the output… Show more
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