What is the signal source in optical fiber communications?
Correct answer: A. Light waves
- A. Light waves
- B. Infrared waves
- C. Radio waves
- D. Very low-frequency waves
Explanation
Optical fiber communication relies on light waves to transmit information. Here's why light waves are a perfect choice for this purpose:High Speed: Light travels at extremely high speeds within the fiber optic cable, enabling high-bandwidth data transmission.Low Attenuation: Light waves suffer minimal signal loss over long distances in optical fibers, compared to electrical signals in copper cables.Immunity to Interference: Optical signals are less susceptible to electromagnetic interference compared to electrical signals, ensuring reliable data transmission.By utilizing light waves, optical fiber communication offers significant advantages over traditional electrical-based communication methods, making it the preferred technology for high-speed data transmission across long distances.
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