2 March 2022

OTDR full form

What is the full form of OTDR?


  • Optical Time Domain Reflectometer

What does OTDR mean?

OTDR is a device that is used to detect or analyze scattered or back-reflected light passing an optical fiber as a result and impurities and imperfections in the fiber. The operation of an OTDR is similar to that of radar. OTDR measures reflected light in real-time. OTDR basically determines the properties of an optical fiber cable that is used to transmit optical signals.