Photonic sensors are devices that use light to detect and measure various physical properties, such as temperature, pressure, or chemical composition. They operate by converting light signals into electrical signals, allowing for precise and sensitive measurements. These sensors are widely used in industries like healthcare, environmental monitoring, and telecommunications. One of the key advantages of photonic sensors is their ability to operate in harsh environments where traditional sensors may fail. They are often smaller, lighter, and more durable, making them suitable for applications in aerospace, automotive, and smart cities. Their growing popularity is driving advancements in sensor technology and applications.