A typical laser diagram for a fiber optic sensor system outlines the optical pathway and active components. It begins with the light source, often a laser diode or superluminescent diode (SLD), chosen for its coherence, wavelength stability, and power output. Jose Miguel Lopez-Higuera: Handbook of Optical Fiber Sensing Technology, John Wiley & Sons, 2002. P 603 Radiation absorption excites an orbital electron to a higher energy level. These type of sensors have their dependency on the optical fiber properties itself to convert an environmental action into a modulation of the light beam passing. This article explores the different types of Fiber Optic Sensors, their working principles, and various applications. A sensor is a device that measures a physical quantity and converts it into a. Fiber Bragg gratings (FBGs) have, over the last few years, been used extensively in the telecommunication industry for dense wavelength division demultiplexing, dispersion compensation, laser stabilization, and erbium amplifier gain flattening. Optical fibers are widely used in fiber optic communications, which permits transmission over longer distances and at higher bandwidths (data rates) because light has hig frequency than any other form of radio. Optical fiber sensors present several advantages in relation to other types of sensors.
