Fiber sensors are advanced devices that use optical fibers to detect changes in the environment, such as temperature, pressure, or light. They work by sending light through the fiber and measuring how the light is affected by the surroundings. These sensors are highly sensitive, accurate, and reliable, making them ideal for use in industries like manufacturing, healthcare, and environmental monitoring. Fiber sensors are lightweight, flexible, and can be used in challenging or remote locations where traditional sensors might not work effectively.