The authors gratefully acknowledge the previous supports provided by the National High Technology Research and Development Program of China (863 Program, Grant No. 2007AA01Z245), and the supports provided for this research by the Major Program (Grant No. 61290312) and Youth Foundation (Grant No. 61301275) of the National Science Foundation of China (NSFC), and the Fundamental Research Funds for the Central Universities (Grant No. ZYGX2011 J010). This work is also supported by Program for Changjiang Scholars and Innovative Research Team inUniversity (PCSIRT, IRTI218), and the 111 Project (B14039). Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
A novel multi-channel distributed optical fiber intrusion monitoring system with smart fiber link backup and on-line fault diagnosis functions was proposed. A 1 ~ N optical switch was intelligently controlled by a per...