Premium
Relative humidity sensor based on polarization maintaining fiber loop mirror with polymer coating
Author(s) -
Liang Houhui,
Jin Yongxing,
Wang Jianfeng,
Dong Xinyong
Publication year - 2012
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27085
Subject(s) - relative humidity , materials science , cladding (metalworking) , coating , humidity , refractive index , optics , optical fiber , polarization (electrochemistry) , fiber optic sensor , optoelectronics , composite material , fiber , chemistry , physics , meteorology
A relative humidity sensor based on polarization maintaining fiber (PMF) loop mirror is presented. The proposed sensors are created through coating a thin layer of polyvinyl alcohol, whose refractive index varies as a function of humidity level, onto a PMF, from which a portion of the cladding is removed. The relative humidity optical fiber sensor is tested with different surrounding humidity level, showing a linear response to parameter. The sensitivity of the relative humidity measurement of 0.98 nm/%RH in the range from 20% to 85% RH is experimentally achieved. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2364–2366, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27085