ith their relatively large fiber core diameter (typically in the range of 50 µm up to a few hundred µm), multi mode fibers allow multiple modes of light to propagate through the fiber. Due to mode interference, the shapes of light pulses get distorted substantially when travelling through multimode fibers over longer distances. Compared to single mode fibers, the larger core size of multi mode fibers simplifies connections, features a higher numerical aperture and allows transmission of light of high optical power.
As an option, some of our multi mode fibers are also available in a metalized version. With these high-performance aluminium or gold coatings, the fibers work reliably even at extreme temperatures and withstand harsh environmental conditions.
For enhanced transmission performance and increased damage thresholds, parts of our multi mode fiber portfolio can be equipped with anti-reflection technologies. In addition to common anti-reflection coatings, a technology based on nano-structures on the surface is available for selected fibers.
Further options include to equip some of the fibers with a broad selection of shaped tips – standard configurations as well as custom designed shapes – or end-caps to achieve higher coupled power into a fiber core by reducing the power density at the air / silica interface.