Fiber-Optic Aqueous Dipping Sensor Based on Coaxial-Michelson Modal Interferometers

Abstract
Fiber-optic modal interferometers with a coaxial-Michelson configuration can be used to monitor aqueous solutions by simple dipping of few centimeters of a fiber tip. The fabrication of these sensors to work around 850 nm enables the use of compact, robust, and low-cost optical spectrum analyzers. The use of this type of portable sensor system to monitor sewage treatment plants is shown.
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Bibliographic reference
Barrios, Paola Sáez-Rodríguez, David Rodríguez, Amparo Cruz Muñoz, José Luis Díez Cremades, Antonio Andrés, Miguel V. 2009 Fiber-Optic Aqueous Dipping Sensor Based on Coaxial-Michelson Modal Interferometers Journal of Sensors 2009 815409
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