Week 8 Post - Fiber Optics

     Fiber optics are a technology that allows for the transfer of data through pulses of light in strands of glass or plastic fibers. Unlike with older copper cables that use electrical signals, fiber optics use light to carry the information, which makes them faster and more efficient. These fibers are bundled together and put into protective layers to keep them safe and undamaged over long distances. Fiber optics very often used in high-speed internet, and used to be used more in telephone and cable T.V. systems. They ability to transfer large data over high speeds with little interference has made them very important with modern communications. 

    The way these fibers work is using a principle called total internal reflection. Each fiber has a core that carries the light signals, and a layer of cladding around it that reflects the light back at it, letting it go long distances without escaping. A laser or LED source shoots rapid flashes of light which are read as binary data at the other end. Since light travels faster than electricity and is not susceptible to electromagnetic interference, fiber optics can give clearer, quicker data transfer than more traditional ways. This technology is always evolving, moving the boundaries of what is possible in communication and data transfer around the world. 

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