What are Bragg Networks?
![Lumiker: Bragg](https://www.lumiker.com/wp-content/uploads/2020/05/bragg.png)
Bragg Networks are sensors placed on optical fiber to measure deformation, vibration, temperature, inclination and other parameters.
A Bragg network is a periodic or aperiodic disturbance of the effective refractive index in the core of an optical fiber.
Normally, the disturbance is approximately periodic over a certain length of, for example, a few millimetres or centimetres. The period is in the range of hundreds of nanometres.
![Lumiker: Esquema Bragg](https://www.lumiker.com/wp-content/uploads/2020/05/bragg-3.png)
BRAGG technology applications
Continuous temperature monitoring.
Security in case of detection of vandalism or intrusion in critical infrastructures.
Control mechanisms.
![Temperature behaviour of a cable monitored with BASF system over 72h](https://www.lumiker.com/wp-content/uploads/2022/07/Temperature-behaviour-of-a-cable-monitored-with-BASF-system-over-72h.png)
Lumiker is developing solutions to monitor structural health of Aircraft Major Components, mostly for FTI applications.
Lumiker´s technologies allow to adapt the interrogating equipment to redundant systems, to interrogate semi-distributed sensor arrays, in a scalable way, where the client can decide to monitor single variables at several locations, or move to a more complex system with multiple variables and thousands of location.
We think that FBG sensors are the best optic solution to this application, since a Raleigh based system has a very slow real-time data process and is very difficult to calibrate to precise testing data collection, and a Brillouin system is far away the target cost for a testing application.