Abstract: Optical fiber cables form the backbone of modern telecommunication networks, and protecting these cables from accidental damage and unauthorized intrusion is an important challenge for network operators. In TSP networks like BSNL, cable patrolling is commonly carried out to identify digging activities, route disturbances, and cable faults. However, manual patrolling requires significant manpower and may not provide immediate information about intrusion events. This seminar presents the use of Distributed Acoustic Sensing (DAS) technology for monitoring optical fiber cable routes. DAS utilizes the existing optical fiber itself as a sensing medium to detect vibrations and disturbances occurring along the cable path. Activities such as excavation, drilling, vehicular movement, and cable tampering can be identified and localized in real time by analyzing the backscattered optical signals. The seminar will present the basic principle of DAS operation, system architecture, and its practical relevance in telecom networks. The study highlights the potential of DAS as an efficient solution for intelligent monitoring and management of large-scale optical fiber networks. The proposed approach can help reduce dependency on routine cable patrolling and improve the response time during cable threat situations. In addition, the sensed data can be used for geospatial mapping of underground fiber routes, enabling better visualization and management of the cable infrastructure. Integration of DAS information with mapping platforms can support maintenance activities, fault localization, and infrastructure planning.

Event Details
Title: Distributed Acoustic Sensing (DAS) for Real-Time Cable Intrusion Management and Geospatial Asset Mapping in OF Networks
Date: July 27, 2026 at 3:00 PM
Venue: ESB244
Speaker: Mr. Varughese Matthew (EE12D028)
Guide: Dr. David Koilpillai
Type: PHD seminar

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