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Fiber optics are strands of optically pure glass that carry digital information as pulses of light. Each glass strand has a protective coating and is surrounded by an optical material that reflects the light back into the glass core. Hundreds of thousands of these coated glass strands are bundled together to make the Fiber to the Premises (FTTP) (also known as Fiber to the Home, or FTTH) optical cable that is connected to your home.
FiOS service incorporates fiber optics, while DSL and Dial-Up use copper telephone wiring.
Fiber Optic Strand
Advantages of fiber optics include: