WHAT IS OPTICAL FIBER?

 WHAT IS OPTICAL FIBER? An  optical fiber  is a thin strand of glass or plastic that can carry light from one end to the other. Let’s dive into the details: OPTICAL FIBER  WHAT IS OPTICAL FIBER? Principle of Operation : Optical fibers work based on the principle of  total internal reflection . When light enters the core of the fiber at a certain angle, it reflects off the cladding (outer layer) and stays within the core. This phenomenon allows the fiber to act as a  waveguide , guiding light along its length. The core of an optical fiber typically consists of a highly transparent material (usually glass), surrounded by a cladding with a lower refractive index. Types of Optical Fibers : Single-Mode Fibers (SMF) : These fibers support only one propagation mode (single mode) and are used for long-distance communication links. Multi-Mode Fibers : These fibers support multiple propagation paths (modes) and are used for short-distance communication links and applications requiring high power