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Optical bragg gratings in inorganic-organic hybrid polymers for highly sensitive temperature measurements

 
: Girschikofsky, Maiko; Belle, Stefan; Hellmann, Ralf; Förthner, Michael; Frey, Lothar; Rommel, Mathias; Fader, Robert

:
Poster urn:nbn:de:0011-n-3525570 (1.5 MByte PDF)
MD5 Fingerprint: a8a903785f208b8fd0ccc01b8d91bf41
Created on: 6.8.2015


Lerch, Reinhard (Vorsitzender) ; AMA Fachverband für Sensorik e.V., Wunstorf:
AMA Conferences 2015. Proceedings : SENSOR 2015 and IRS 2 2015; Nuremberg Exhibition Centre, Germany, 19. - 21.5.2015
Nürnberg: AMA Service, 2015
ISBN: 978-3-9813484-8-4
pp.812-814
International Conference on Sensors and Measurement Technology (SENSOR) <17, 2015, Nuremberg>
International Conference on Infrared Sensors & Systems (IRS²) <14, 2015, Nuremberg>
Deutsche Forschungsgemeinschaft DFG
HE 5150/1-1
Deutsche Forschungsgemeinschaft DFG
FR 713/10-1
Bragg-Gitter-Sensoren auf der Basis von Hybridpolymeren, - Grundlegende Untersuchungen und Realisierung
English
Conference Paper, Electronic Publication
Fraunhofer IISB ()

Abstract
We report on the fabrication of an optical sensor based on channel waveguide Bragg gratings in precured inorganic-organic ORMOCER® hybrid-polymer substrates. The particular combination of the optical component and chosen substrate lead to a planar structure with ideal characteristics for highly sensitive temperature measurements. The resulting sensor element shows a linear dependence between temperature and sensor signal with a markedly high sensitivity of up to 294 pm K-1, a thirtyfold higher sensitivity as compared to commonly used silica based fiber Bragg gratings. For the applied interrogation system this sensitivity corresponds to a notable resolution of 20 mK for temperature recordings.

: http://publica.fraunhofer.de/documents/N-352557.html