Problem Statement
Explain how data is transmitted through a fiber-optic cable and mention its advantages.
Explanation
In fiber optics, data is transmitted as pulses of light using a laser or LED source. The light travels through a core surrounded by cladding that reflects light inward through total internal reflection. Advantages include very high bandwidth, long-distance transmission, immunity to electromagnetic interference, and better security because light signals are difficult to tap. However, they are expensive and fragile compared to copper cables. In interviews, highlight fiber optics when asked about high-speed backbone connections.
Practice Sets
This question appears in the following practice sets: