Om4 Dual-core Multimode Fiber

OM4 is a high-performance 50-micron multimode fiber optimized for high-speed data transmission in short- to medium-range networks. OverviewOM4 fiber is a laser-optimized multimode fiber (MMF) with a 50 µm core diameter, designed to support high-bandwidth applications in data centers, enterprise networks, and campus environments. It is backward compatible with OM3 fiber, allowing seamless upgrades in existing multimode infrastructures.

The fiber is typically identified by its aqua-colored jacket for easy recognition. Key SpecificationsCore/Cladding Size: 50/125 µmBandwidth: OM4 offers significantly higher modal bandwidth than OM3, supporting 4700 MHz·km at 850 nm for laser-optimized applications. Supported Data Rates and Distances: 10 Gbps Ethernet: up to 550 meters40 Gbps Ethernet: up to 150 meters100 Gbps Ethernet: up to 150 metersLight Source Compatibility: Optimized for VCSEL (Vertical-Cavity Surface-Emitting Laser) sources, which are cost-effective and energy-efficient.

Advantages

High Bandwidth: Supports faster data rates over longer distances compared to OM1, OM2, and OM3 fibers.

Cost-

Effective: Compatible with lower-cost VCSEL transceivers, reducing overall network deployment costs. Backward Compatibility: Can operate with existing OM3 networks, simplifying upgrades.

Short- to Medium-

Range Optimization: Ideal for data center horizontal cabling, server interconnects, and high-speed LANs. ApplicationsOM4 fiber is widely used in scenarios requiring high-speed, short-range connectivity, including: Data center backbone and horizontal cabling10G, 40G, and 100G Ethernet networksEnterprise LANs and campus networksHigh-performance computing clustersComparison with Other Multimode FibersFiber TypeCore SizeMax 10G DistanceMax 40G/100G DistanceTypical UseOM162. 5 µm300 mNot recommendedLegacy LANsOM250 µm500 mLimitedEarly 1G/10GOM350 µm300 m100 mModern 10G/40GOM450 µm550 m150 mHigh-speed data centersOM550 µm550 m150 m (SWDM)SWDM-enabled, future-proofOM4 provides a balance of high bandwidth, cost efficiency, and backward compatibility, making it the mainstream choice for modern high-speed multimode networks.

In summary, OM4 dual-core multimode fiber is a robust solution for high-speed, short- to medium-range optical networks, offering enhanced bandwidth, VCSEL compatibility, and practical deployment flexibility in data centers and enterprise environments.