Einmodusfasern

Einmodusfasern, also known as single-mode fibers, are a type of optical fiber that transmits light in only one mode. This is achieved by having a very small core diameter, typically around 9 micrometers. This small core restricts the light to propagate along a single path, preventing modal dispersion. Modal dispersion occurs when different modes of light travel at different speeds within the fiber, leading to signal distortion over long distances.

The primary advantage of using einmodusfasern is their ability to transmit data over much longer distances with significantly less signal degradation compared to multimode fibers. This makes them the preferred choice for telecommunications, long-haul data transmission, and high-speed internet networks. The transmission of light in a single mode also allows for higher bandwidth.

The manufacturing process for einmodusfasern is more precise than for multimode fibers due to the strict control required for the core diameter and refractive index profile. This precision is essential to ensure single-mode operation. Einmodusfasern are typically made of silica glass with a cladding layer that has a slightly lower refractive index. The core and cladding are coated with a protective buffer.