Multi-Mode Fibers - Step Index

Step-index fibers are used for the transmission of laser power in sensor technology, for industrial applications, and in medical technology. They get their name from the step-shaped refractive-index profile between the fiber core and fiber cladding. The refractive indices in the core and cladding are constant. The refractive index of the core glass is always higher.
A distinction is made between launch fibers with a core diameter of from 40 μm to 105 μm and large-core fibers with a core diameter of from 200 μm to 2000 μm.

UV Fibers

New Possibilities: UV LEDs and lasers are more cost effective than deuterium and xenon lamps. As a result, optical fibers are becoming more and more interesting for UV transmission.