Multimode Fiber (MMF)
Definition
Multimode fiber (MMF) uses a larger 50-micron core (OM3, OM4, OM5) to carry multiple light modes simultaneously. This larger core allows less expensive VCSEL and LED light sources compared to single-mode laser transmitters. Modern OM3 and OM4 laser-optimized multimode fibers support 10 Gbps at 984 and 1,312 feet respectively, and 100 Gbps at shorter distances using parallel optic MPO/MTP transceivers.
Frequently Asked Questions
Why Multimode Fiber (MMF) Matters
Multimode fiber provides the bandwidth required for modern 10, 25, and 40 Gbps in-building backbone applications at a significantly lower equipment cost than single-mode — making it the appropriate and cost-effective choice for most commercial building backbone installations.
How Commercial Cabling Company Uses It
Commercial Cabling Company installs OM3 and OM4 laser-optimized multimode fiber for in-building backbone systems, data center horizontal cabling, and campus applications throughout Arizona and Nevada. All multimode terminations are OTDR-tested and insertion-loss-certified at project completion.