Distributed Fiber Optical Sensing of Oxygen with Optical Time Domain Reflectometry

Sensors

Susanne Eich²  Elmar Schmälzlin¹ 

[1] Colibri Photonics GmbH, Am Mühlenberg 11, Potsdam-Golm 14476, Germany; E-Mail:;Institute of Chemistry/Physical Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam-Golm 14476, Germany; E-Mail:

关键词: OTDR;    optical sensing;    molecular oxygen;    triangular-[4] phenylene;   

DOI  :  10.3390/s130607170

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
©2013 by the authors; licensee MDPI, Basel, Switzerland.