let’s know about fiber optics
Fiber optics is a type of transmission line or cable is made of glass or plastic is very smooth and smaller than a hair, and can be used to transmit light signals from one place to another. The light source used is usually a laser or LED. This cable is approximately 120 micrometers in diameter. Light that is in the optical fiber does not come out because the refractive index of glass is greater than the refractive index of air, because the laser has a very narrow spectrum. Speed optical fiber transmission is very high so it is great to use as a communication channel. The efficiency of the optical fiber is determined by the purity of the building blocks of glass / glass. The more pure glass material, the less light is absorbed by the fiber optics.
Structure of Fiber Optics
Broadly speaking, the structure of the optical fiber is divided into two parts, namely core and cladding (wrapping of the core). Caldiing have a function to protect the light that bounces off the core leads out to be reflected back into the core. Cladding can reflects the light from the core that leads out because the cladding have a lower refractive index.
In fact the optical fiber is also wrapped in a layer called resin-called jacket. This resin layer can absorb the light so as to prevent leakage that leads out of the core.
Types of Optical Fiber
Broadly speaking, the distribution of types of optical fibers can be seen from two aspects, namely based on the propagated mode and based on the core refractive index.
a. Based on the propagated mode optical fiber can be divided into two general categories:
