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Distributed Fiber Optical Sensing of Oxygen with Optical Time Domain Reflectometry
Institute of Chemistry/Physical Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam-Golm 14476, Germany
Colibri Photonics GmbH, Am Mühlenberg 11, Potsdam-Golm 14476, Germany
* Author to whom correspondence should be addressed.
Received: 19 February 2013; in revised form: 27 May 2013 / Accepted: 28 May 2013 / Published: 31 May 2013
Abstract: In many biological and environmental applications spatially resolved sensing of molecular oxygen is desirable. A powerful tool for distributed measurements is optical time domain reflectometry (OTDR) which is often used in the field of telecommunications. We combine this technique with a novel optical oxygen sensor dye, triangular- phenylene (TP), immobilized in a polymer matrix. The TP luminescence decay time is 86 ns. The short decay time of the sensor dye is suitable to achieve a spatial resolution of some meters. In this paper we present the development and characterization of a reflectometer in the UV range of the electromagnetic spectrum as well as optical oxygen sensing with different fiber arrangements.
Keywords: OTDR; optical sensing; molecular oxygen; triangular- phenylene
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Eich, S.; Schmälzlin, E.; Löhmannsröben, H.-G. Distributed Fiber Optical Sensing of Oxygen with Optical Time Domain Reflectometry. Sensors 2013, 13, 7170-7183.
Eich S, Schmälzlin E, Löhmannsröben H-G. Distributed Fiber Optical Sensing of Oxygen with Optical Time Domain Reflectometry. Sensors. 2013; 13(6):7170-7183.
Eich, Susanne; Schmälzlin, Elmar; Löhmannsröben, Hans-Gerd. 2013. "Distributed Fiber Optical Sensing of Oxygen with Optical Time Domain Reflectometry." Sensors 13, no. 6: 7170-7183.