TY - JOUR
T1 - Distributed Optical Fiber Sensing Assisted by Optical Communication Techniques
AU - Yan, Yaxi
AU - Zheng, Hua
AU - Zhao, Zhiyong
AU - Guo, Changjian
AU - Wu, Xiong
AU - Hu, Junhui (visitor)
AU - Lau, Alan Pak Tao
AU - Lu, Chao
N1 - Funding Information:
Manuscript received October 31, 2020; revised January 19, 2021; accepted February 1, 2021. Date of publication February 8, 2021; date of current version June 16, 2021. This work was supported in part by National Key R&D Program of China under Grant 2018YFB1801701, in part by the Science and Technology Program of Guangzhou under Grant 2019050001, in part by the Science and Technology Planning Project of Guangdong Province under Grant 2019A050510039, in part by the Natural Science Foundation (NSF) of Guangdong Province under Grant 2018A0303130117, in part by The Research Grants Council (RGC) of Hong Kong, General Research Fund (GRF: PolyU 152658/16E, 152168/17E), and The Hong Kong Ph.D. Fellowship. (Corresponding author: Chao Lu.) Yaxi Yan, Hua Zheng, Zhiyong Zhao, Xiong Wu, and Junhui Hu are with the Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong (e-mail: [email protected]; [email protected]; zhiyong.zhao@polyu. edu.hk; [email protected]; [email protected]).
Publisher Copyright:
© 1983-2012 IEEE.
PY - 2021/6/15
Y1 - 2021/6/15
N2 - The development of optical fiber technology has facilitated the technological innovation in optical fiber communication and sensing systems over the past decades. Among all the fiber sensing technologies, distributed optical fiber sensing (DOFS) has attracted great research interests and has been extensively investigated. In optical fiber communication systems, optical parameters such as intensity, phase, polarization, or frequency are modulated to realize data transmission, while for DOFS they are employed to measure the distributed physical parameter variation along the sensing fiber. Due to the similarities shared by optical fiber communication systems and DOFS systems, optical communication techniques, including coherent detection, polarization diversity and multicarrier signaling have been widely used in the DOFS to improve the sensing performance. In this article, principles of coherent detection, polarization diversity and multicarrier signaling are introduced and their applications in phase sensitive optical time domain reflectometry and Brillouin optical time domain analyzer are reviewed. A newly proposed unidirectional forward transmission based DOFS is also presented.
AB - The development of optical fiber technology has facilitated the technological innovation in optical fiber communication and sensing systems over the past decades. Among all the fiber sensing technologies, distributed optical fiber sensing (DOFS) has attracted great research interests and has been extensively investigated. In optical fiber communication systems, optical parameters such as intensity, phase, polarization, or frequency are modulated to realize data transmission, while for DOFS they are employed to measure the distributed physical parameter variation along the sensing fiber. Due to the similarities shared by optical fiber communication systems and DOFS systems, optical communication techniques, including coherent detection, polarization diversity and multicarrier signaling have been widely used in the DOFS to improve the sensing performance. In this article, principles of coherent detection, polarization diversity and multicarrier signaling are introduced and their applications in phase sensitive optical time domain reflectometry and Brillouin optical time domain analyzer are reviewed. A newly proposed unidirectional forward transmission based DOFS is also presented.
KW - BOTDA
KW - coherent detection
KW - distributed optical fiber sensing
KW - forward transmission
KW - multicarrier signaling
KW - optical communications
KW - polarization diversity
KW - φ-OTDR
UR - http://www.scopus.com/inward/record.url?scp=85101462606&partnerID=8YFLogxK
U2 - 10.1109/JLT.2021.3057670
DO - 10.1109/JLT.2021.3057670
M3 - Journal article
AN - SCOPUS:85101462606
SN - 0733-8724
VL - 39
SP - 3654
EP - 3670
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 12
M1 - 9350167
ER -