What is Optical Fiber Cables and how it is used in telecommunication.
What's Optical Fiber :- Optical fiber cable is transparent and flexible fiber made by stretched glass or plastic. It's diameter slightly thicker than human hair. These fibers are used to transmit light for communication, inside the construction of optical fiber cable light source which are transferred from one end to other and converted into electrical signal. Optical Fiber Cable Construction :- Optical fibers are made by no. of fibers called core, and core is surrounded by a transparent cladding material with lower refractive index. Light is traveled with all the data in the core by total internal reflection which causes fiber to act as a medium of waves.This is more complex to joining of optical cable than electrical wire or cable. So very careful cutup of the fibers, precise alignment of the fiber cores, and the coupling of these cores. To join these fibers we can use electric arc. Construction :- # Protective Shield # Cladding # Core # Fibers