Which device generates the light signal in a fiber optic system?

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Multiple Choice

Which device generates the light signal in a fiber optic system?

Explanation:
In fiber optic systems, the light signal is created by the transmitting device. It contains the light source—such as a laser diode, LED, or VCSEL—that converts electrical input into optical energy and modulates it to carry the information. The other components play different roles: a detector or receiver converts the incoming light back into an electrical signal, and an amplifier boosts the existing light signal without creating new light. So the device that actually generates the light signal is the transmitting device because it provides the optical energy that travels through the fiber.

In fiber optic systems, the light signal is created by the transmitting device. It contains the light source—such as a laser diode, LED, or VCSEL—that converts electrical input into optical energy and modulates it to carry the information. The other components play different roles: a detector or receiver converts the incoming light back into an electrical signal, and an amplifier boosts the existing light signal without creating new light. So the device that actually generates the light signal is the transmitting device because it provides the optical energy that travels through the fiber.

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