What quality check is referred to as a light check in fiber optics?

The term "light check" in fiber optics refers to the continuity check of the fiber system. This process involves verifying that light can travel through the fiber optic cable without significant loss, indicating that the fibers are intact and functioning properly. A continuity check ensures that there are no breaks or severe bends in the fiber that would prevent light from passing through.

During a continuity check, a light source is often connected to one end of the fiber, and a light detector is positioned at the other end to confirm that light is being transmitted. If light is detected, it indicates that the fiber is complete and capable of transmitting signals as intended.

This check is fundamental in ensuring the integrity of fiber optic installations before they are put into operation or when troubleshooting existing systems. It serves as a preliminary assessment of the fiber's functionality, making it a critical part of any fiber optics toolkit.