Have you ever thought about how you get emails or any other information, from any corner of the world, within a blink of an eye? This has been made possible by a network of cables, which are laid under the ground and below the ocean. The cables, which carry most of the world’s data, are optical fiber cables. They are also used in medical equipment. Let’s learn how optical fiber cables work, and how they have revolutionized the world around us.

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