optical fiber sensors

Optical fiber sensors use thin strands of glass or plastic fibers to detect changes in their environment, such as temperature, pressure, or strain. When these conditions vary, they alter how light travels through the fiber—either by changing its intensity, phase, or wavelength. These changes are then measured to monitor and analyze the specific parameter. Because they are small, flexible, immune to electromagnetic interference, and capable of remote sensing, optical fiber sensors are valuable in industrial, medical, and structural monitoring applications.