Case Study Monitoring Critical Infrastructure with Optical Fiber Sensors and the ONMSi Accurately detecting intrusion, open access points, and thefts Fiber networks are best known for enabling high-speed data communications. However, since optical fibers are bend-sensitive, especially at certain wavelengths, they are also effective solutions for sensor applications. This case study highlights an application where fiber was used with an optical sensor to monitor intrusion in critical infrastructure operated by a public services utility. A water company in Europe had optical cable installed along their pipeline network in order to provide internal data services to their various remote sites such as technical communications to operate the company’s drinking water infrastructure and

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