2023
DOI: 10.3390/photonics10111251
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Methylene Blue Optical Fiber Sensor Filled with Calcium Alginate Hydrogel

Ning Wang,
Wenting Liu,
Shiqi Liu
et al.

Abstract: As it is a typical dye pollutant in water, methylene blue detection is important to health and environmental safety. A kind of methylene blue optical fiber sensor was successfully fabricated, which was highly sensitive, responded linearly, was easy to manufacture and was low cost. The sensor was composed of a capillary glass tube, single-mode fiber and calcium alginate hydrogel. The interference spectrum of the optical fiber F–P cavity successfully responded to the methylene blue solution. The response sensiti… Show more

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