modal bandwidth - Computer Definition
The measure of the capacity of a multimode fiber (MMF) in Gbps applications, modal bandwidth is expressed in MHz/km. A MMF with a higher modal bandwidth will support data transmission at a given rate over a longer distance. Modal bandwidth is determined by the dispersion characteristics of the fiber, including both modal dispersion and chromatic dispersion. MMF core diameter (50
The capacity of an optical fiber measured in MHz-km (megahertz over one kilometer). One MHz-km equals approximately .7 to .8 Mbps. Thus, a 100 MHz-km fiber can carry about 70 to 80 Mbps of data.