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Latvian Fiber Optic Sensor Applications

Fiber and communications infrastructure knowledge brief Published 23 Aug 2026

Prepared for preliminary research by the METRA knowledge desk. Confirm optical interfaces, port or core capacity, electrical input and output, enclosure protection, thermal design and installation limits against current standards and product documentation.

Fiber optic sensors in Latvia are applied across navigation, infrastructure monitoring, transportation, and research, leveraging high sensitivity, immunity to electromagnetic interference, and real-time measurement capabilities.

Industrial and Navigation Applications

Latvia hosts Fiber Optical Solutions (FOS), a vertically integrated company specializing in high-precision Fiber Optic Gyroscopes (FOG) and FOG-based Inertial Measurement Units (IMU) and Strapdown Inertial Navigation Systems. Their production includes polymeric-coated fibers, fiber welding, and raw fiber manufacturing using chemical vapor deposition, enabling cost-effective, high-quality devices for navigation and defense applications. These systems are critical for precise navigation in aerospace, maritime, and defense sectors.

Infrastructure and Structural Monitoring

Fiber optic sensors are widely used in structural health monitoring of concrete, composite materials, and road surfaces. The Fiber Optical Sensor Research Group at Riga Technical University (RTU) focuses on fiber optical scattering sensors, which provide real-time temperature and deformation monitoring along the entire fiber length. These sensors are particularly valuable for large-scale structures where traditional sensor networks are inefficient, enabling continuous monitoring over hundreds of meters.

Transportation and Smart Road Systems

Latvia has implemented fiber optic sensor technologies in transportation infrastructure, particularly for smart road applications. Fiber Bragg Grating (FBG) sensors and distributed sensing systems are used for traffic monitoring, weigh-in-motion (WIM) systems, pavement condition evaluation, and vehicle classification. These sensors integrate with digital twins, machine learning, AI, and IoT platforms to optimize road maintenance, reduce costs, and prevent damage from overweight vehicles.

The Transport and Telecommunication Institute (TSI) has led projects to automate truck weight measurement and improve road safety using fiber optic sensors.

Research and Development

Latvian research institutions are advancing high-sensitivity, high-speed, and high-accuracy fiber optic sensor technologies.

RTU and TS

I collaborate on developing multifunctional fiber optical sensing systems for telecommunications, civil engineering, and material sciences. These initiatives include real-time signal processing, deformation monitoring, and integration of fiber optic sensors into complex monitoring networks.

Key Advantages

Passive operation: no external power requiredHigh sensitivity: capable of detecting minute strain, temperature, or deformation changesElectromagnetic immunity: suitable for harsh industrial and transportation environmentsScalability: can monitor long structures or distributed networks efficientlySummaryIn Latvia, fiber optic sensors are applied in navigation systems, structural health monitoring, smart transportation infrastructure, and advanced research. Companies like Fiber Optical Solutions provide industrial-grade FOG and IMU devices, while RTU and TSI focus on research-driven applications for real-time monitoring and smart road systems.

These technologies enhance precision, safety, and cost-efficiency across multiple sectors.

Latvian Fiber Optic Sensor Applications - METRA FIBER MARKET [PDF]

Latvian Fiber Optic Sensor Applications

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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