Fiber Optics: How Light Carries the Internet

Fiber optics use thin glass or plastic strands to transmit light signals.
Light pulses inside fibers carry digital data at near-light speeds.
Total internal reflection keeps light trapped within the fiber.
Fibers can transmit signals over hundreds of kilometers without loss.
Undersea fiber cables connect continents for global internet traffic.
Fiber optics offer faster speeds and higher bandwidth than copper wires.
Telecom, medical imaging, and sensors all rely on fiber technology.
Laser diodes generate the light signals that fibers carry.
Optical amplifiers boost signals without converting light back to electricity.
Fiber optics make streaming, video calls, and cloud computing possible.