29 November 2011 High birefringence fiber loop mirror with polymer coating used as humidity sensor
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Proceedings Volume 8311, Optical Sensors and Biophotonics III; 83110T (2011) https://doi.org/10.1117/12.905405
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China
Abstract
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 (PVA), whose refractive index varies as a function of humidity level, onto a polarization maintaining fiber, 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%-80% RH is experimentally achieved.
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Houhui Liang, Yongxing Jin, Yu Zhao, "High birefringence fiber loop mirror with polymer coating used as humidity sensor", Proc. SPIE 8311, Optical Sensors and Biophotonics III, 83110T (29 November 2011); doi: 10.1117/12.905405; https://doi.org/10.1117/12.905405
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