Fiber is considered to be the most proficient way of transferring data as this thread like structure transmits the data in the form of light waves. So the fool proof way of detecting a defect could only be done using testers as it could hamper the transmission efficiency of an optical fiber where it is known as fiber optic testers. The best fiber optics testers are regarded as otdr or optical time domain reflecto meter as it provides complete information not only of the fiber but also of length splice losses, connector losses and fiber defects as it stores the information electronically and hence these testers are termed as the most advance fiber optic testers.Another type of fiber optics tester is known as fiber optic cable tester which is hand held troubleshooting device which sends red light from a semi conductor laser down a fiber for checking for faults like cracked fibers or defective splices. The versions of these fiber optics cable testers are very ergonomically designed for comfortable handling and also for portability as these versions are equipped with a 2.5mm interface and are also regarded as compatible with connectors such as sc, st and fc. These fiber optic cable testers are optimized for single or multimode fiber like ftt/pon and the other which is pof known as plastic optical fiber and have different types of which the one is called as hand held fiber optical testers which posses following features as it has simple continuity test pen and also other simple inspection which is required for the objects. The other one's include basic laser /led light source and meter kits as dual, triple and quad wave lengths are also available.
Today fiber optics is considered to be the core of datacom network and also is regarded as one of the predominant media type for mission critical data center links, backbone with buildings and also for longer distances which is essential for campus networks.