Fiber optic cable and their applications 

Fiber optic cable has made communication so speedy that no one could ever think of it. It has been seen that by using fiber optic cable one can achieve a bandwidth more than 50,000 Gbps. Fiber optic cable uses optical transmission method. In this method of transmission electrical signals are taken as input, and then their conversion is done to generate light pulses which are then transmitted. At the receiving end they are again converted to electrical signals.
You must be thinking what does a fiber optic cable consists of which makes it so fast. If you cut a piece of fiber optic cable from a side then you will find that at the centre there is a glass core. This helps in the propagation of light during optical transmission. The glass core is surrounded by glass cladding. This is chosen in order such that its refraction index is lower than that of core. This is essential to keep all the light in the core. At the end is present a thin plastic sheath which is used to keep the cladding safe and prevent it from getting damaged.  
Fiber optic cable is used in various forms and areas. Applications where fiber optic cable is used a lot includes aerospace, military, conducting data transfer test, networking and a few more. The best feature of fiber optic cable is that it performs quite well even in harsh environments where other of the same kind fails.

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