Fiber optic cable has no reflected light
Fiber optics refers to the technology that uses thin strands of glass or plastic to convey data in the form of light. Reflectance (which has also been called "back reflection" or optical return loss) of a connection is the amount of light that is reflected back up the fiber toward the source by light reflections off the interface of the polished end surface of the mated connectors and air. This is always measured in dB (decibels) and will be displayed as a negative number. Optical loss (for connectors), sometimes called attenuation, is simply the reduction of optical power induced by transmission through a medium such as a pair of fiber optic connectors. Fiber optic troubleshooting is an essential skill for network administrators, technicians, and engineers responsible for maintaining and repairing fiber optic systems. These high-speed, high-capacity communication networks are increasingly replacing copper cables, offering superior performance and.
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