Fiber‐ring laser‐based fiber grating sensor system using self‐healing ring architecture

This paper presents a self‐healing fiber grating sensor system and demonstrates its effectiveness. The self‐healing function is constructed by using a primary ring architecture incorporated with several ring sub‐networks. To enhance the sensing signal when a breakpoint suddenly occurs in the network, we employ a fiber‐ring laser‐based sensor system. The network survivability of an 11‐point FBG sensor is experimentally examined. The proposed fiber grating sensor system can increase the reliability of a sensing network.