Find more Glossary: http://www.exfo.com/Support-and-Services/Be-an-Expert-Training-Program/Animated-Optical-Glossary/
The minimum radius that a fiber optic cable can be bent without loss of light or impairment. The radius varies with different cable designs but follows a general rule that it be no less than 15 times the cable diameter.
EXFO’s Be-an-Expert Program has produced the world’s first animated glossary of fiber optic terms. Including concise definitions and animated sequences, this tool provides a great reference for anyone that wishes to understand fiber terminology.