Which of the following best describes the function of a fiber cleaver?

The function of a fiber cleaver is to precisely cut optical fibers for splicing. This tool is essential for fiber optic installation and maintenance, as precise cuts ensure that the ends of the fibers are smooth and aligned accurately when they are joined together. A quality cleaving process minimizes signal loss and reflection at the splice joint, which is crucial for maintaining optimal performance in a fiber optic network. By achieving a clean, flat cut, the cleaver prepares the fibers for fusion or mechanical splicing, which are common methods used to join two fibers.

The other options do not accurately describe the function of a fiber cleaver. Connecting two fibers together involves splicing or using connectors, which is a separate process requiring different tools. Measuring the performance of a fiber optic cable requires testing equipment such as an Optical Time Domain Reflectometer (OTDR) or a power meter, rather than a cleaver. Cleaning fiber connectors involves using cleaning tools and solvents, which is unrelated to the cutting or cleaving of optical fibers.