multimódový

Multimódový refers to a type of optical fiber cable that supports multiple light paths, or modes, to travel along the fiber core simultaneously. This is in contrast to single-mode fiber, which only allows a single light path. The larger core diameter of multimode fiber is what enables these multiple modes to propagate.

The characteristics of multimode fiber make it suitable for shorter distance communication links. Common applications include building backbones, data centers, and local area networks (LANs). The use of multiple modes can lead to modal dispersion, where different light paths travel at slightly different speeds, causing signal distortion over longer distances. However, advancements in fiber technology and light sources, such as Light Emitting Diodes (LEDs) and Vertical-Cavity Surface-Emitting Lasers (VCSELs), have helped to mitigate this issue.

Multimode fiber is generally less expensive to manufacture than single-mode fiber and is often easier to work with due to its larger core size, which simplifies connector alignment. There are different types of multimode fiber, categorized by their core diameter and bandwidth capabilities, such as OM1, OM2, OM3, OM4, and OM5, each offering varying performance levels for different data rates and distances. The choice between multimode and single-mode fiber depends on the specific requirements of the network, primarily the required transmission distance and bandwidth.