Optical Fiber Sensor Technologies - OSEN
Optical Fiber Telecommunications
Learning Objectives
The objective of this course is to train students in the methods of studying, analyzing, designing and evaluating the technologies-applications of optical sensors implemented with optical fibers. First, we consider the evolution of optical sensors, the importance of fiber optic sensors, their main technologies, and key devices, components and subsystems that allow the implementation of fiber sensor systems. The next chapter is dedicated to the analysis and design of the OTDR subsystem that will allow to know the exact distance in the fiber optic segment where the distributed fiber sensors perform the measurements (temperature, strain, vibration, etc.). Then the main distributed optical fiber sensors (Rayleigh, Raman and Brillouin) will be analyzed. Because fiber optics can behave like a distributed sensor, the practical application of such sensors is now very relevant for sensing applications in tens of kilometers with only a single interrogator at one end. For measurements at discrete points, fiber sensors with Bragg Grating (FBG) are the most widelyused for their simplicity and performance. Finally, the industrial applications of these sensors will be analyzed, commenting on the applications of the low-cost sensors based on plastic fibers, and the applications of the optical sensorsfor the technology and the development of Smart-Cities.
Learning results of the subject:
- Ability to analyze, specify, design optical sensors (and sensor networks) implemented with optical fiber: distributed, non-distributed, quasi-distributed and discrete.
- Ability to develop solutions and applications for different types of fiber sensors: temperature, strain-deformation, vibration, acoustic, etc.
- Ability to analyze and design the interrogation systems for different types and applications of sensors.
- Ability to analyze and design a key subsystem: Optical Time Domain Reflectometer (OTDR).
- Ability to analyze the importance of optical sensors for the development of technologies related to "Smart Cities" and Energy Efficiency.
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