Fiber Optic Sensing System Kashmir tunnel

With the implementation of the BharatNet project and increasing spread of fiber optic network by private telecom companies, India is likely to have more than 7,00,000 km of fiber optic network by next year. The applications to fiber optic cables which carry high-speed internet are limitless. It could turn our roads into smart highways with smart bus stops, making existing infrastructure safe and smart.

Fibre optic sensing technology can be deployed to monitor highway traffic, human movements, digging activity, sensor activity, seismic activity and leaks. It is used around the world to monitor power stations, telecom networks, highways, railways, tunnel safety systems, international borders, pipelines etc.

The Fiber Optic Sensing Association (FOSA), the world’s premier fiber optic sensing trade association, today released details on more than 1,300 installations of distributed fiber optic sensing (DFOS) around the world.  The data reflects the largest representative sample ever published.

FOSA provided a geographic breakdown of global DFOS installations in more than 75 countries. China had more deployments than any other nation with roughly 11.3% of all identified installations, followed closely by Germany at 9.4%. The United States came in third with roughly 6.5%, and South Korea was fourth with 4.8% of installations. Assets most frequently monitored using DFOS included power cables (22.2%), tunnels (20%), pipelines (13.5%) and perimeters (8.4%). The more than 1,300 identified installations span more than 20,000 miles in length (33,300 km). India has total 31 installations which include 14 pipelines, 13 power cables, 3 tunnel safety systems and 1 conveyor. Out of 3 tunnel safety systems, two are deployed at Nashri-Chenani tunnel and Pir-Panjal railway tunnel in Jammu and Kashmir state of India.

Fiber optic sensing enables highly precise remote monitoring of physical assets, including power cables, pipelines, railways, international borders and critical infrastructure. These capabilities are unlocked through the measurement of deviations of light in a fiber optic cable occurring as a result of acoustic, temperature or strain signals.

With fiber optic sensing, hundreds of miles of highway can be monitored for accidents and traffic flows. Power cable faults and pipeline leaks can be detected and located instantly, and footsteps can be heard on a perimeter in the middle of the night.  They are all detectable through fiber optic sensing. Fiber Optic sensing can wide applications in highway systems, tunnel safety, smart cities etc.

– Chaitanya Kulkarni

Source – Fiber Optic Sensing Association

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