OM4 improves on OM3 by reducing modal dispersion. A 10G link can extend more than half a kilometer, which covers most campus buildings. In high-speed network infrastructure, choosing the right type of fiber optic cable is essential for performance, cost-efficiency, and long-term scalability. Two of the most widely deployed laser-optimized multimode fibers are OM3 and OM4, both designed to support high-speed data transmission. The OM4 fiber type was standardized in 2009, and compared to OM3 fiber, it has a higher modal bandwidth of 4700 MHz/km, while OM3 has a modal bandwidth of 2000 MHz/km. The four variations of multimode fiber OM stands for Optical Multimode. Vitex experts can help you align your fiber plant to both your budget and your performance needs — contact us for a tailored. This guide explains the five generations of multimode fiber - OM1, OM2, OM3, OM4, and OM5 - covering their physical characteristics, color coding, bandwidth, maximum distances at different data rates, optical sources (LED, VCSEL, SWDM), and real-world applications in enterprise networks and data.
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