U-shape panda polarization-maintaining microfiber sensor coated with graphene oxide for relative humidity measurement
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 6308-6314 |
Journal / Publication | Journal of Lightwave Technology |
Volume | 39 |
Issue number | 19 |
Online published | 13 Jul 2021 |
Publication status | Published - 1 Oct 2021 |
Link(s)
Abstract
A new U-shape panda polarization-maintaining fiber
(PPMF) based microfiber interferometer coated with graphene
oxide (GO) film was proposed and experimentally demonstrated
for relative humidity (RH) sensing. Experimental results show
that the U-shape sensor has refractive index (RI) sensitivity of
1692.5 nm/RIU in the RI range of 1.33 when the diameter of the
taper waist is 10.08 µm. The surface of the U-shape sensor was
then modified chemically and coated with a thin layer of GO film
(59.64 nm) for RH detection and the sensitivity is proportional to
RH: as RH increases from 30% to 98%, the sensitivity increases
from 0.111 to 0.361 nm/%RH and the response time is 0.28 s. In addition, the cross sensitivity to temperature, stability, reproducibility, and response/recovery time of the RH sensor were studied in
detail. The proposed U-shape fiber RH sensor has advantage of high
sensitivity, good reproducibility and fast response (0.28 s), which
has potential application in areas requiring dynamic measurement
of RH variations such as industrial product fabrication process
control and breath state monitoring.
Research Area(s)
- Graphene, graphene oxide, microfiber interferometer, Optical fiber sensors, Optical surface waves, Relative humidity, Sensitivity, Sensors, Silicon, Surface treatment, Ushape fiber
Citation Format(s)
U-shape panda polarization-maintaining microfiber sensor coated with graphene oxide for relative humidity measurement. / Chen, Ling; Liu, Bin; Liu, Juan et al.
In: Journal of Lightwave Technology, Vol. 39, No. 19, 01.10.2021, p. 6308-6314.
In: Journal of Lightwave Technology, Vol. 39, No. 19, 01.10.2021, p. 6308-6314.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review