The power transmitted through a fiber optic link, as well as the loss through the link, can be tested with a(n) ______.

The power transmitted through a fiber optic link and the associated loss can be accurately assessed using a light source and power meter. This approach involves two key components: the light source, which emits light at specific wavelengths suited to the fiber being tested, and the power meter, which measures the intensity of the light that is transmitted through the fiber.

When the light source is connected to one end of the fiber optic link, it sends a known amount of light into the fiber. The power meter is connected at the receiving end to measure how much of that light successfully arrives. By comparing the input power (from the light source) with the output power (measured by the power meter), technicians can calculate the loss incurred during transmission, which is essential for assessing the performance of the fiber link.

This method provides a straightforward way to determine not just the loss but also the overall functionality of the fiber optic system, ensuring it meets required specifications. It is particularly vital in installation and maintenance processes to ensure optimal performance and reliability of fiber optic networks.