To measure source or receiver power, which tool is utilized?

The use of a fiber optic power meter is specifically designed to measure the power level of light signals in fiber optic cables. It provides precise readings of optical power in dBm or mW, which is essential for ensuring that the fiber optic system is functioning optimally.

This tool can be applied at both the source or the receiver end of the fiber optic link, making it versatile for testing and troubleshooting. For example, when evaluating a fiber optic system's performance, it can measure transmitter output power from the light source or quantify receiver sensitivity at the endpoint. This information is vital for maintaining proper performance levels, ensuring adequate signal strength, and diagnosing potential issues in the network.

Other tools, while useful in fiber optic applications, serve different purposes. A visual fiber tracer is primarily used for identifying and tracing fiber routes, while a light source and power meter together are not solely for power measurement, as they also test the light source output. An OTDR (Optical Time Domain Reflectometer) is more focused on characterizing the integrity of the fiber itself and identifying faults along its length rather than directly measuring source or receiver power.