What are the application scenarios of OM4 optical fiber and what are the characteristics?
I. Model and specification

Core diameter: 50 microns, cladding diameter of 125 microns, in accordance with the IEC 60793-2-10 standard A1a.3 type.

Bandwidth: Effective Mode Bandwidth (EMB) up to 4700 MHz-km at 850 nm, much higher than 2000 MHz-km for OM3.

Jacket Colour: Usually aqua blue (some vendors may use violet) for easy differentiation from other models.

Connector type: Support LC, SC, MPO and other connectors to meet the needs of different scenarios.

Applicable Scenarios

Data Centre

Backbone transmission: OM4 optical fiber supports 10Gbps Ethernet transmission distance of up to 550m, 40Gbps and 100Gbps Ethernet transmission distance of up to 150m, which is suitable for high-density cabling within the data centre.

High-density connectivity: When MPO connectors are used, 40/100Gbps parallel transmission can be achieved to meet the connectivity needs of large-scale servers and network equipment.

Enterprise Network

High-speed LAN: In scenarios such as campus networks and enterprise campuses, OM4 optical fibre provides stable high-speed network connections and supports Gigabit and 10Gbps Ethernet upgrades.

Future expansion: OM4 fibre is backward compatible with OM3, making it easy for enterprise networks to gradually upgrade to higher bandwidths.

Cloud Computing and High Performance Computing

Low-latency transmission: The low-loss nature of OM4 fibre reduces signal attenuation, ensuring reliable data transmission for cloud computing and virtualisation applications.

High bandwidth demand: Suitable for scenarios that need to deal with massive data, such as big data analysis and artificial intelligence training.

Features and Advantages

High bandwidth and long distance transmission

Bandwidth Advantage: The bandwidth of OM4 optical fibre is 2.35 times higher than that of OM3, supporting higher data transmission rates.

Transmission Distance: In 10Gbps applications, the transmission distance is 250 metres longer than OM3; in 40/100Gbps applications, the transmission distance can reach 150 metres.

Low Loss and High Stability

Low signal attenuation: OM4 fibre has better loss characteristics than OM3, which reduces signal attenuation and improves the accuracy and reliability of data transmission.

High stability: Suitable for long-time, high-load operation of the network environment, reducing maintenance costs.

Compatibility and Expandability

Backward compatible: OM4 fibre can seamlessly replace OM3 fibre without the need for large-scale transformation of the existing network.

Supports future upgrades: OM4 fibre can be easily upgraded to 40/100Gbps or even higher bandwidths as network demand grows.

Bend-insensitive design

Extremely low bending radius: Some OM4 fibres (e.g. OM4 MM P) have a bend-insensitive design that reduces bending losses and simplifies installation.

Adaptable to complex environments: Suitable for cabling scenarios where space is limited or frequent bending is required.

Cost-effective

Cost-effective: Compared to single-mode fibre, OM4 fibre offers the advantages of low cost, ease of installation and maintenance for short-haul transmission.

Long-term return on investment: High bandwidth and long-haul transmission capability reduces the frequency of network upgrades and lowers the total cost of ownership.

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