Technology

Our Technology

Fiber Optics + Advanced Interrogation Systems + Intelligent Analytics

Folium Sensing builds next-generation distributed fiber optic sensing systems designed to monitor large infrastructures with unprecedented accuracy. Our solutions combine optical physics, precision hardware, and intelligent analytics to deliver real-time measurements of strain, temperature, acoustics, and pressure over tens of kilometers. This page explains how our core technologies work and why they are transforming industrial sensing.

Core Technology

Distributed Fiber Optic Sensing (DFOS)

Turning ordinary optical fibers into intelligent sensor arrays

Distributed Fiber Optic Sensing uses laser light to measure physical changes along the entire length of an optical fiber. A single fiber acts as thousands of sensors, offering:

Continuous, real-time data
Long-range coverage (10-80 km)
High spatial resolution
EMI immunity
Extreme durability in harsh conditions

Why It Matters

DFOS eliminates the need for traditional point sensors and enables complete visibility of large or inaccessible assets.

1000s
Virtual Sensors
80 km
Max Range

How Fiber Optic Sensing Works

Physics Behind the Technology

Inside the fiber, a laser pulse experiences interaction with the glass material. Different scattering effects give rise to powerful sensing capabilities:

Rayleigh Scattering

Used for DAS (Distributed Acoustic Sensing)

Detects minute vibrations
Ideal for intrusion detection, seismic activity, rail movement
High sensitivity to acoustic disturbances

Raman Scattering

Used for DTS (Distributed Temperature Sensing)

Measures temperature by analyzing Stokes/Anti-Stokes light ratios
Enables hotspot detection, fire monitoring
Thermal profiling capabilities

Brillouin Scattering

Used for DSS (Distributed Strain Sensing)

Measures strain and temperature changes
Structural health monitoring
Ground movement & geotechnical studies

This combination of optical phenomena forms the backbone of Folium Sensing's products.

Hardware

Advanced Interrogation Units

Precision-engineered optoelectronic hardware

Our interrogation units (IU) generate, collect, and analyze optical signals with extreme precision. Key features include:

Narrow-linewidth lasers
High-speed photodetectors
Noise-optimized amplifiers
Real-time signal processing
User-configurable settings
Modular architecture

Core Function

These units convert optical backscatter into digital data - forming the core of the monitoring system.

Signal Generation
Data Collection
Real-time Analysis
Analytics

Edge + Cloud Analytics

Intelligent insights from raw optical signals

Folium Sensing integrates advanced analytics to transform complex optical data into meaningful information.

Key Capabilities

Signal filtering and noise reduction
Event classification using ML/AI models
Pattern detection for strain, vibration, and temperature anomalies
Real-time alerting (SMS, email, SCADA integration)
Geo-referenced visualization along the asset profile
Historical analysis + predictive maintenance insights

This ensures users not only collect data, but understand it instantly.

Intelligent Processing

Signal Filtering
ML/AI Models
Real-time Alerts
Geo-Visualization
Deployment

Deployment Technology & Cabling

Designed for harsh, real-world environments

Our technology supports multiple deployment modes:

Buried fiber along railways and pipelines
Armored fiber for high-pressure zones
Embedded fiber inside concrete structures
Surface bonding for structural surfaces
Downhole fibers for oil & gas wells
Retrofit using existing telecom fibers

Cable Engineering

All cables are engineered for:

High tensile strength
Temperature endurance
Corrosion resistance
Longevity in outdoor/underground conditions

System Architecture

How everything works together

A typical Folium Sensing system includes these integrated components:

1

Sensing Fiber

The distributed sensor

2

Interrogation Unit

Captures optical signals

3

Edge Processing

Pre-processes data

4

Cloud/Local Server

Analytics & dashboards

5

User Interface

Maps, graphs, alerts

This modular design allows seamless scaling from small sites to nationwide deployments.

Why Our Technology Stands Out

Unique Value Proposition

High Accuracy

Over long distances

Low-Cost Scalability

Economical expansion

Rugged & Proven

Tested in harsh industries

Customizable

Flexible sensing modes

Compatible

Works with existing networks

Low Maintenance

Minimal upkeep required

Near Real-Time

Instant monitoring

Predictive Ops

From reactive to intelligent

Our systems help industries move from reactive maintenance to intelligent, predictive operations.

Want a demo of how our sensing technology works?

Our engineers can show you real datasets, system setups, and live processing workflows.

Request a Demo

FOLIUM
SENSING

Connect with us

Contact Information

  • B5 - 01, B - Block, 5th Floor, IIT Madras Research Park, Kanagam Road, Taramani, Chennai – 600113.
  • info@foliumsensing.com
  • www.foliumsensing.com
  • +91-8319698619
  • MONDAY - FRIDAY (8 am - 6 pm)

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