Your fiber is more than a link, it’s a lifeline for businesses, communities, and mission-critical operations. Yet, accidental digging, micro-bending, or unauthorized access can cause costly outages and safety risks. STL Fiber Optic Sensing uses Distributed Acoustic Sensing (DAS) and AI analytics to turn your existing fiber into a powerful monitoring grid without laying a single new sensor cable.
Whether you’re preventing accidental fiber cuts in a busy city, safeguarding thousands of kilometers of oil pipelines, or keeping your digital infrastructure alive in extreme weather, STL FOS ensures your network is more than connected — it’s aware, predictive, and always watching over itself. With STL FOS, you don’t just respond to incidents. You prevent them.
Designing a resilient, threat-aware, future-ready network? Let our experts help you deploy the right FOS solution. Built to sense, protect, and predict.
Imagine a cable that doesn’t just carry information but also keeps you informed. Fiber Optic Sensing (FOS), powered by Distributed Acoustic Sensing (DAS), turns everyday fiber optic cables into intelligent sentinels. They can detect vibrations, movements, or anomalies across long distances, making them a natural fit for industries like railways, pipelines, and perimeter security.
Explore our comprehensive range of Optical Fiber Cables, designed to meet diverse networking needs. Our portfolio includes Multi Loose Tube, Unitube/Central Fiber Core, Micromodule, Tight Buffer, Flat Ribbon, Intermittently Bonded Ribbon, and Specialty cables. Each cable type is engineered for optimal performance across various applications, ensuring high-speed data transmission and reliability. Browse our catalogue to find the ideal solution for your networking requirements.
Elevate your connectivity with our trusted Optical Fiber Cable offerings.
Beyond telecom, FOS safeguards oil & gas pipelines, power lines, and perimeter fences from intrusion or damage.
Our AI engine continuously learns from real-world vibration patterns across your fiber routes. It doesn’t just detect activity, it understands it. From routine environmental noise to high-risk threats, the system intelligently classifies events so you see only what truly matters, not background clutter
When unmanned digging or intrusion begins, every second counts. Our system detects, analyzes, and alerts you in under five seconds, giving your teams the critical time needed to intervene before fiber damage, service outages, or safety risks occur.
Reliability is non-negotiable. With advanced AI/ML classification, our FOS solution maintains a false alarm rate of less than 1%. That means fewer distractions, higher operator confidence, and faster response to genuine threats, without alert fatigue.
Designing a resilient, threat-aware, future-ready network?
Let our experts help you deploy the right FOS solution. Built to sense, protect, and predict.
Designing a resilient, threat-aware, future-ready network? Let our experts help you deploy the right FOS solution. Built to sense, protect, and predict.
Designing a resilient, threat-aware, future-ready network? Let our experts help you deploy the right FOS solution. Built to sense, protect, and predict.
7.4mm 288-fibre micro cable
Perfect for installations in tight spaces, this eco-certified cable not only enhances efficiency but also supports sustainability by reducing waste and minimising the carbon footprint.
The NextGen Celesta IBR
revolutionizes network density, driving down the total Cost of Ownership and expediting installation.
Ideal for access or FTTX networks
See how STL can help reduce deployment and fixed costs by 50% by using the world's slimmest micro cable - 432F
End-To-End Optical Cable Solutions
STL's state-of-the-art range of optical fibre solutions as part of STL Cosmos can endow your network with the capabilities to reimagine network connectivity.
Fibre optics refers to the technology and the medium associated with the transmission of data as light pulses along a ultrapure strand of glass, which is a thin as a human hair.
Due to increasing data demands, there's a dire need to create new fibre deep networks and data centres, which would encourage faster 5G and FTTH adoption.
The world is getting smarter and connected. Converged and high bandwidth application networks have unique challenges which make high performance connectivity a top priority.
When light travels through a fiber, tiny amounts of light scatter back due to natural imperfections in the fiber.This scattering is known as Rayleigh scattering. External disturbances like digging, footsteps, traffic etc. creates vibrations which will lead to change in this scattering pattern.Detecting this scattered light in real time helps to detect the vibrations.This is called Distributed Acoustic Sensing (DAS) technology .
STL developed AI/ML algorithms analyze vibration patterns, intensity, and frequency.Vibration analysis results of a passing truck looks different from a digging activity. The system classifies vibrations into categories, helping operators respond only to genuine threats and harmless vibrations are discarded.
Yes. FOS continuously monitors thousands of points along a fiber. Each event is mapped to its exact location, allowing simultaneous detection and reporting of multiple disturbances at the same time.
Backscattered Raw vibration signals are processed by DAS and AI engines. They are converted into alerts,which are displayed in STL dashboards. alerts tagged to GIS maps that will show what , where ,and when it happened.
A single DAS unit can monitor up to 80km of fiber in real time. One DAS unit has 2 channels,each channel can cover 40km of fiber length.Both channels will cover 80km to both directions.For longer distances, multiple units can be used in a networked fashion.
No. The existing optical fiber itself becomes the sensor. Only a DAS hardware unit at one end is required, eliminating the need for thousands of separate sensing devices in the field.
Yes. Digging creates distinct vibration patterns. DAS unit detects them instantly, pinpoints the location, and sends alerts before damage occurs, preventing costly service disruptions.
FOS acts as an invisible perimeter security. Optical fiber can be deployed in overground perimeters like fences/walls or buried underground.Fiber in Overhead perimeters will help to detect,Climbing,cutting or any other physical intrusion activities.Underground Fiber can detect footsteps, digging,tunneling,vehicle movement or an unauthorised physical movement near the perimeter.All these events are detected and mapped, providing real-time alerts for intrusion.
Yes. Rail operators use FOS to detect train movement, track faults,animal movement and trespassing. It improves passenger safety, prevents accidents, and optimizes maintenance planning.
FOS helps monitor traffic, detect underground works, ensure public safety, and secure utilities. By turning existing city fiber networks into sensors, it makes urban systems more intelligent and responsive.
Since it uses the existing fiber network, FOS eliminates the need for thousands of physical sensors. Real-time detection reduces downtime, theft, and repair costs, delivering massive savings over time.
Operators need basic training to interpret dashboards and alerts. Most of the complexity is handled by AI, making the system user-friendly and quick to adopt.STL will provide necessary training to operators to monitor and maintain the system.
Highly scalable. Multiple DAS units can be deployed along a long-haul fiber route. They can be centrally managed, making it possible to monitor hundreds of kilometers seamlessly.
Distributed Acoustic Sensing (DAS) Interrogator System
