New properties of a fiber optic sensor in application of a composite fence for critical infrastructure protection

摘要: This paper presents a new solution of using the composite fence with novel fiber optic modalmetric sensor integrated within its structure. The is based on changes in transverse modal field which generated at output multimode fiber. By spatial limitation observation to fragment thereof, changes’ transformation distribution into signal amplitude made. Due constant analysis structure signal, detection an external disorder possible. Integration optical fibers allows for accurate reproduction movement onto by significantly improving sensitivity