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Fiber Bragg Grating (FBG) Sensors for Industrial Sensing

Recently, researchers have presented a new generation of fiber Bragg grating (FBG) sensors that are covered with aluminum and copper. These FBG sensors are compact and hermetically sealed. Depending on the applied coating, they are resistant to high or low temperatures and can be applied in harsh environmental conditions. As well as gold-coated fiber Bragg grating sensors, they are representatives of a modern generation of humidity-proof different sensors, for example, temperature sensors, strain sensors, pressure sensors, etc.

Main Fiber Bragg Grating Sensors advantages

It’s a well-known fact that FBG sensors are widely applied in various fields and spheres thanks to their advantages. A lot of measurements in harsh environmental conditions would become possible by the usage of fiber optic technology.

Here are the most common advantages of fiber Bragg grating sensors:

  • absolute temperature and other measurements in comparison with usual electric sensors;
  • rapid linear response in strain, pressure, or temperature measurements;
  • the compact size of the construction reduces the weight and allows to use of many sensing points on a single fiber strand;
  • measurements over long distances;
  • acceptable price, etc.

FBG Sensors for Industrial Sensing


The new type of FBG Sensors

However, a usual FBG sensor with the glass fiber coating can have several limitations because of the high humidity, high temperatures, corrosion, etc. The new type of Fiber Bragg Gratings are embedded into optical fibers coated with aluminum, copper, or gold have much more applications.

Scientists have offered processes that allow providing two lays of metal coatings. It gives an opportunity to create different lengths of window stripping and make the second layer with the needed thickness and length.

In conclusion, we must say that scientists from all over the world keep finding new fiber optic solutions to solve the modern problems we face in real life. That means that fiber optic technology will be better and more effective every day.

Optromix is a fast-growing vendor of fiber Bragg grating (FBG) product line such as fiber Bragg grating sensors, for example, FBG strain sensors, FBG interrogators and multiplexers, Distributed Acoustic Sensing (DAS) systems, Distributed Temperature Sensing (DTS) systems. The company creates and supplies a broad variety of fiber optic solutions for monitoring worldwide. If you are interested in structural health monitoring systems and want to learn more, please contact us at