Sensitivity analysis of fault detection for few-mode fiber links based on Rayleigh backscattering

Zhenxing He; Feng Liu; Wenping Zhang; Guijun Hu

doi:10.1117/12.2602403

9 October 2021 Sensitivity analysis of fault detection for few-mode fiber links based on Rayleigh backscattering

Zhenxing He, Feng Liu, Wenping Zhang, Guijun Hu

Proceedings Volume 11901, Advanced Sensor Systems and Applications XI; 1190111 (2021) https://doi.org/10.1117/12.2602403
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Conference Poster

Abstract

In this paper, the fault detection sensitivity (FDS) analysis model for the splice fault of few-mode fiber (FMF) links under dynamic crosstalk conditions is constructed, which is based on the principle of FMF Rayleigh Backscattering. Under the condition of the cumulative effect of different modes of crosstalk, the variation trend of the loss characteristics of the fusion splicing fault and the FDS characteristics of the three-mode fiber LP01, LP11a and LP11b are analyzed, respectively. The simulation results show that as the modal crosstalk introduced by the axial misalignment of the fusion splice increases, the FDS of the LP11a and LP11b modes deteriorates higher than that of LP01 mode. At the same time, this paper build an FMF fusion fault detection system based on photon lantern and fiber circulators. The experimental results shows that the results are consistent with the simulation results, which shows the feasibility of the FDS analysis model under the cumulative effect of modal crosstalk in the FMF link

Citation Download Citation

Zhenxing He, Feng Liu, Wenping Zhang, and Guijun Hu "Sensitivity analysis of fault detection for few-mode fiber links based on Rayleigh backscattering", Proc. SPIE 11901, Advanced Sensor Systems and Applications XI, 1190111 (9 October 2021); https://doi.org/10.1117/12.2602403

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available