What does "OTDR" stand for?

The term "OTDR" stands for Optical Time-Domain Reflectometer. An OTDR is a critical instrument used in fiber optics for testing and characterizing the performance of optical fibers. It operates by sending a pulse of light into a fiber and measuring the light that is reflected back from various points along the fiber. This reflection can indicate faults, splices, or connectors and helps technicians to locate and quantify losses within the fiber link.

Understanding the function of the OTDR is important in the maintenance and troubleshooting of fiber optic networks, as it provides detailed information about the integrity and quality of the fiber. The versatility of the OTDR makes it one of the essential tools for network engineers and technicians involved in the installation and maintenance of fiber optic systems.