Evaluation Parameter for Self-Healing FBG Sensor Networks After Multiple Fiber Failures

Autor: Dagong Jia, Yulong Zhang, Zhitong Chen, Hongxia Zhang, Tiegen Liu, Yimo Zhang
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: IEEE Photonics Journal, Vol 7, Iss 4, Pp 1-7 (2015)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2015.2442175
Popis: Quantitatively evaluating the reliability of fiber Bragg grating (FBG) sensor networks becomes problematic as the number of working fiber failures increases in dedicated protection mode. To solve this problem, a signal attenuation rate (SAR) of the sensor system is proposed to evaluate self-healing capabilities after increased working fiber failures. We analyze the influencing factors and calculate the theoretical values of SAR under different network states for values of split ratio a = 0.1, 0.5, and 0.9. Our theoretical model was experimentally demonstrated using an FBG sensor network with four sensors. The results of our calculations using this model agree with our experimental results.
Databáze: Directory of Open Access Journals