Humidity insensitive TOPAS polymer fiber Bragg grating sensor
Journal
Optics Express
Date Issued
September 26, 2011
DOI
10.1364/OE.19.019731
Abstract
We report the first experimental demonstration of a humidity insensitive polymer optical fiber Bragg grating (FBG), as well as the first FBG recorded in a TOPAS polymer optical fiber in the important low loss 850nm spectral region. For the demonstration we have fabricated FBGs with resonance wavelength around 850 nm and 1550 nm in single-mode microstructured polymer optical fibers made of TOPAS and the conventional poly (methyl methacrylate) (PMMA). Characterization of the FBGs shows that the TOPAS FBG is more than 50 times less sensitive to humidity than the conventional PMMA FBG in both wavelength regimes. This makes the TOPAS FBG very appealing for sensing applications as it appears to solve the humidity sensitivity problem suffered by the PMMA FBG.
Subjects
File(s)![Thumbnail Image]()
Name
oe-19-20-19731.pdf
Size
944.9 KB
Format
Adobe PDF
Checksum (MD5)
33b05aaac350bcbf7d62ac70c19f41fa