What does 'OTDR' stand for in fiber optics?

The term 'OTDR' stands for Optical Time-Domain Reflectometer. This device is essential in the field of fiber optics as it is used to analyze the characteristics of fiber optic cables. It operates by sending a pulse of light into the fiber and then measuring the light that is reflected back. The information gathered allows technicians to detect faults, measure the length of the fiber, and assess the quality of the installation.

The use of 'Optical Time-Domain Reflectometer' captures the device's fundamental functions: it employs the optical time domain to reflect light signals for analysis purposes. Understanding this concept is crucial for fiber optic technicians, as it enables them to troubleshoot and maintain fiber optic networks efficiently.