Optical Time Domain Reflectometers (OTDRs) are a type of optoelectronic device used to measure the optical characteristics of a fiber optic cable. OTDRs measure the length of the cable, the amount of light reflected back from the cable, and the amount of light lost due to absorption or scattering. OTDRs are used to detect faults in fiber optic cables, such as breaks, splices, and bends. They are also used to measure the attenuation of the cable, which is the amount of light lost over a given distance. OTDRs are used in a variety of applications, including telecommunications, data centers, and industrial automation. OTDRs are available from a variety of manufacturers, including EXFO, Yokogawa, Anritsu, and Viavi Solutions. Show Less Read more
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