title: Zeonex-PMMA microstructured polymer optical FBGs for simultaneous humidity and temperature sensing.
abstract: In this Letter, we report for the first time, to the best of our knowledge, the fabrication and characterization of a Zeonex/PMMA microstructured polymer optical fiber (mPOF) Bragg grating sensor for simultaneous monitoring of relative humidity (RH) and temperature. The sensing element (probe) is based on two separate in-line fiber Bragg gratings (FBGs) inscribed in the fabricated mPOF. A root mean square deviation of 0.8% RH and 0.6°C in the range of 10%-90% RH and 20°C-80°C was found. The developed mPOFBG sensor constitutes an efficient route toward low-cost, easy-to-fabricate and compact multi-parameter sensing solutions.
authors.forename: Getinet
authors.initials: G
authors.lastname: Woyessa
authors.forename: Jens K M
authors.initials: JK
authors.lastname: Pedersen
authors.forename: Andrea
authors.initials: A
authors.lastname: Fasano
authors.forename: Kristian
authors.initials: K
authors.lastname: Nielsen
authors.forename: Christos
authors.initials: C
authors.lastname: Markos
authors.forename: Henrik K
authors.initials: HK
authors.lastname: Rasmussen
authors.forename: Ole
authors.initials: O
authors.lastname: Bang