Why is optical power important in fiber optic systems?

Optical power is critically important in fiber optic systems because it directly affects the ability to transmit data accurately and effectively over distances. Sufficient optical power ensures that the light signals sent through the fiber are strong enough to be detected on the receiving end without significant loss or distortion.

When the optical power levels are within the appropriate range, it minimizes bit errors and other data transmission issues, thereby maintaining the integrity and reliability of the communication. Insufficient optical power can lead to signal degradation, which affects the overall performance of the system.

While the other options touch on related aspects of fiber optics—such as signal quality and the necessity of repeaters—they do not emphasize the primary role of optical power in facilitating proper data transmission. Thus, ensuring adequate optical power is foundational for effective communication in fiber optic networks.