# Surface intrusion event identification for subway tunnels using ultra-weak FBG array based fiber sensing

> Research article (Optics Express, 2020) · cited 58× · AI/ML

**Wikidata**: [openalex:W3005705906](https://www.wikidata.org/wiki/openalex:W3005705906)  
**Source**: https://4ort.xyz/entity/surface-intrusion-event-identification-for-subway-tunnels-using-ultra-weak-fbg-array-based-fiber-sensing