What is a common use of a Visual Fault Locator?

A Visual Fault Locator is commonly used to identify faults within a fiber optic cable. It functions by emitting a bright light, typically in the visible spectrum, along the fiber, which allows technicians to visualize breaks, bends, or defects in the fiber. When there is a fault, the light will leak out at that point, making it evident where attention is required. This tool is invaluable in troubleshooting and maintaining fiber optic systems, enabling quick identification and resolution of issues to ensure optimal performance.

While measuring optical power and calibrating optical test equipment might be important tasks in fiber optics, they are not the primary functions of a Visual Fault Locator. Additionally, inspecting fiber connectors involves different tools and methods, typically focused on cleanliness and physical characteristics rather than identifying faults within the fiber itself. Thus, the specific use of a Visual Fault Locator is fundamentally geared towards fault detection in fiber optic cables.