Distributed Fiber Optical Sensing of Oxygen with Optical Time Domain Reflectometry

作者：Eich Susanne^*; Schmaelzlin Elmar; Loehmannsroeben Hans Gerd

来源：Sensors (Switzerland), 2013, 13(6): 7170-7183.

DOI：10.3390/s130607170

• OTDR
• optical sensing
• molecular oxygen
• triangular-[4] phenylene

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-[4] 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.

• 出版日期2013-6