What is a connector in fiber optics?

A connector in fiber optics is a device that terminates the end of a fiber optic cable, allowing different fiber optic cables to connect with each other or to other equipment seamlessly. Connectors are essential components in fiber optic networks because they enable the quick and easy connection and disconnection of fiber links without the need to splice or permanently join fibers together. This functionality is crucial for maintaining network flexibility, simplifying upgrades or repairs, and allowing for easy reconfiguration of the system.

Fiber optic connectors come in various designs (such as SC, LC, ST, and MTP/MPO) and have specific alignment and coupling mechanisms that ensure optimal light transmission and minimal loss. Proper connectorization is also critical to the overall performance of a fiber optic system, as poor connections can lead to increased attenuation and signal degradation.

The other choices do not accurately describe what a connector is in this context. Stripping devices are used for removing the protective coating of the fiber cable, cables themselves are the medium through which the data travels, and testing tools are utilized to measure light transmission or other performance metrics in fibers, but none of these define a connector's role in fiber optics.