Cut-Back Measurements are a method of measuring optical loss in optical fiber cables. This method involves cutting a fiber to a specific length and then comparing the optical loss of a short segment of the fiber to the optical loss of a longer segment. This is done by connecting the long segment of the fiber to a light source and measuring the optical power at the end of the short segment. The difference between the optical power at the end of the long segment and at the end of the short segment is the optical loss.
Cut-Back Measurements are used to determine the amount of optical loss due to defects in the fiber. These defects can include micro-bends, macro-bends, breaks, and poor splices. By measuring the optical loss due to these defects, technicians can identify and isolate the source of the optical loss. This helps to improve the performance of the fiber optic network.
In addition to measuring optical loss due to defects, Cut-Back Measurements can also be used to measure the optical loss due to fiber aging. As fiber ages, its performance can degrade due to environmental factors such as temperature and humidity. By measuring the optical loss in a short segment of the fiber, technicians can identify areas of the fiber that have degraded over time.
Cut-Back Measurements are an important tool for technicians to use when troubleshooting optical fiber networks. By measuring the optical loss of a short segment of the fiber, technicians can identify and isolate the source of the optical loss. This helps to improve the performance of the fiber optic network, reduce downtime, and maximize the network’s efficiency.
