The conventional method, known as the cutback method, involves coupling fiber to the source and measuring the power out of the far end. For more accurate measurements, use mode conditioning on the fiber near. There are two reasons we may want to test bare fiber, by that we mean fiber that has not been terminated in connectors but is simply plain optical fiber, The first one is to ensure the fiber or cable being manufactured meets its specifications, as is done by every manufacturer. consultants and cabling vendors. Testing plays a key role in ensuring the fiber optic cables that make up the network are running efficiently. Controlling network loss is becoming an increasingly important task for network engineers as loss budgets get smaller and demands on networks increase and intrinsic to this is testing and. ity check. The fiber optic link attenuation is tested using an optical loss test set (OLTS) or a light source and power meter (LSPM) Figure 1). Key tests include: Effective fiber testing utilizes advanced tools such as Optical Loss Test Sets (OLTS), Optical Time-Domain Reflectometers (OTDR), and Visual Fault. Fiber Optic Testing Testing is used to evaluate the performance of fiber optic components, cable plants and systems.
