Share Email Print
cover

Proceedings Paper

Study on the phase of interference signal in phase extraction based phase-sensitive optical time domain reflectometry
Author(s): Chaoli Liang; Yang Lu; Xueliang Zhang; Mo Chen; Jianfei Wang; Zhou Meng
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

In a phase extraction based phase-sensitive optical time domain reflectometry (Φ-OTDR), external perturbation induced phase variation of Rayleigh backscattered light-wave (RBL) is obtained from time varying interference signal that is comprised of two RBLs with a spatial shift along the sensing fiber. In this paper, the phase of the interference signal in the phase extraction based Φ-OTDR is studied. Derivation is performed on the interference signal considering the interference of multiple RBL within probe pulse covered fiber section. Theoretical analysis and experimental results reveal that the phase of interference signal are wavelength independent while the intensity of interference signal are wavelength dependent.

Paper Details

Date Published: 15 November 2018
PDF: 5 pages
Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 1096411 (15 November 2018); doi: 10.1117/12.2504872
Show Author Affiliations
Chaoli Liang, National Univ. of Defense Technology (China)
Yang Lu, National Univ. of Defense Technology (China)
Xueliang Zhang, National Univ. of Defense Technology (China)
Mo Chen, National Univ. of Defense Technology (China)
Jianfei Wang, National Univ. of Defense Technology (China)
Zhou Meng, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 10964:
Tenth International Conference on Information Optics and Photonics
Yidong Huang, Editor(s)

© SPIE. Terms of Use
Back to Top