TY - JOUR
T1 - All-Fiber Two-Dimensional Inclinometer Based on Bragg Gratings Inscribed in a Seven-Core Multi-Core Fiber
AU - Cui, Jingxian
AU - Gunawardena, Dinusha Serandi
AU - Liu, Zhengyong
AU - Zhao, Zhiyong
AU - Tam, Hwa Yaw
N1 - Funding Information:
Manuscript received December 6, 2019; revised February 5, 2020; accepted February 16, 2020. Date of publication February 19, 2020; date of current version April 15, 2020. This work was supported in part by The Hong Kong Polytechnic University under Grant 1-ZVGB, Grant 1-BBYE, and Grant 1-BBYS, and in part by the National Natural Science Foundation of China under Grant 61827820 and Grant 61905096. (Corresponding authors: Dinusha Serandi Gunawardena; Zhengyong Liu.) Jingxian Cui, Dinusha Serandi Gunawardena, and Hwa-Yaw Tam are with the Photonics Research Centre, Department of Electrical Engineering, Hung Hom, Kowloon, Hong Kong, China (e-mail: [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 1983-2012 IEEE.
PY - 2020/4/15
Y1 - 2020/4/15
N2 - We demonstrated an all-fiber 2-D inclinometer based on fiber Bragg gratings with the capability of measuring the azimuthal angle and the inclination angle, simultaneously. The sensor performance is theoretically optimized and experimentally investigated. Excellent agreement between simulated and experimental results was achieved. Through detection of the wavelength shifts of the fiber Bragg gratings inscribed in the central core and two outer cores of a seven-core multi-core fiber, minimum error of 0.0056° for the azimuthal angle, and 0.025° for the inclination angle, were obtained. The detection range of the former ranges from 0 to 360°, while the latter ranges from 0 to 90°. The fiber Bragg grating in the central core can be used for temperature-compensation. The proposed fiber sensor is easy to fabricate and robust, increasing its potential in practical applications.
AB - We demonstrated an all-fiber 2-D inclinometer based on fiber Bragg gratings with the capability of measuring the azimuthal angle and the inclination angle, simultaneously. The sensor performance is theoretically optimized and experimentally investigated. Excellent agreement between simulated and experimental results was achieved. Through detection of the wavelength shifts of the fiber Bragg gratings inscribed in the central core and two outer cores of a seven-core multi-core fiber, minimum error of 0.0056° for the azimuthal angle, and 0.025° for the inclination angle, were obtained. The detection range of the former ranges from 0 to 360°, while the latter ranges from 0 to 90°. The fiber Bragg grating in the central core can be used for temperature-compensation. The proposed fiber sensor is easy to fabricate and robust, increasing its potential in practical applications.
KW - Bragg gratings
KW - fiber optics
KW - optical fiber sensors
KW - two-dimensional inclinometer
UR - http://www.scopus.com/inward/record.url?scp=85083293369&partnerID=8YFLogxK
U2 - 10.1109/JLT.2020.2974998
DO - 10.1109/JLT.2020.2974998
M3 - Journal article
AN - SCOPUS:85083293369
SN - 0733-8724
VL - 38
SP - 2516
EP - 2522
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 8
M1 - 9003410
ER -