TY - JOUR
T1 - Hollow core bragg fiber integrated with regenerate fiber bragg grating for simultaneous high temperature and gas pressure sensing
AU - Wang, Yu
AU - Tao, Jihong
AU - Yuan, Weihao
AU - Lian, Zhenggang
AU - Ling, Qiang
AU - Chen, Daru
AU - Yu, Zhangwei
AU - Lu, Chao
N1 - Funding Information:
Manuscript received April 16, 2021; revised May 25, 2021; accepted June 7, 2021. Date of publication June 11, 2021; date of current version September 13, 2021. This work was supported in part by The Research Grants Council (RGC) of Hong Kong, General Research Fund GRF under Grants PolyU 152658/16E and 152168/17E, in part by the Zhejiang Provincial Natural Science Foundation of China under Grants LY19F050014, LY19F050015, LGG18F050004, and LQ19F050005. (Corresponding authors: Qiang Ling; Daru Chen.) Yu Wang is with the Hangzhou Institute of Advanced Studies, Zhejiang Normal University, Hangzhou 999077, China, and also with the Photonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong (e-mail: [email protected]).
Publisher Copyright:
© 1983-2012 IEEE.
PY - 2021/9/1
Y1 - 2021/9/1
N2 - We have proposed and experimentally demonstrated a novel optical fiber sensor for simultaneous measurement of high temperature and gas pressure based on a Regenerated Fiber Bragg grating (RFBG) cascaded with a homemade hollow core Bragg fiber (HCBF). The HCBF functions as an anti-resonant reflecting waveguide and acts as a pressure and temperature sensing unit. The sample was fabricated and tested in our lab, exhibiting a high linear pressure and temperature sensitivity of -3.747 nm/MPa and 25.925 pm/°C in a large-dynamic range of 2 MPa and 600 °C, respectively. The RFBG, as a temperature monitor, was integrated to compensate the temperature cross-correspondence of the HCBF. By utilizing a 2 × 2 matrix obtained with the experimental results, simultaneous measurement of temperature and gas pressure can be achieved. Besides, compact size, low cost and high sensitivity make the sensor more competitive in harsh environment application.
AB - We have proposed and experimentally demonstrated a novel optical fiber sensor for simultaneous measurement of high temperature and gas pressure based on a Regenerated Fiber Bragg grating (RFBG) cascaded with a homemade hollow core Bragg fiber (HCBF). The HCBF functions as an anti-resonant reflecting waveguide and acts as a pressure and temperature sensing unit. The sample was fabricated and tested in our lab, exhibiting a high linear pressure and temperature sensitivity of -3.747 nm/MPa and 25.925 pm/°C in a large-dynamic range of 2 MPa and 600 °C, respectively. The RFBG, as a temperature monitor, was integrated to compensate the temperature cross-correspondence of the HCBF. By utilizing a 2 × 2 matrix obtained with the experimental results, simultaneous measurement of temperature and gas pressure can be achieved. Besides, compact size, low cost and high sensitivity make the sensor more competitive in harsh environment application.
KW - Anti-resonant waveguide
KW - optical fiber sensors
KW - photonic bandgap fiber
UR - http://www.scopus.com/inward/record.url?scp=85115195167&partnerID=8YFLogxK
U2 - 10.1109/JLT.2021.3088530
DO - 10.1109/JLT.2021.3088530
M3 - Journal article
AN - SCOPUS:85115195167
SN - 0733-8724
VL - 39
SP - 5643
EP - 5649
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 17
ER -