Are there 100 Mbps or 1 Gbps multimode fiber optic cables

Yes, multimode fiber optic cables such as OM1 and OM2 can support 100 Mbps and 1 Gbps Ethernet connections.

Fiber Types and Supported Speeds

OM1 Fiber:

• Core diameter: 62.5 µm, orange jacket
• Commonly used for 100 Mbps Ethernet and can support 1 Gbps over short distances (up to 275 meters)
• Typically uses LED light sources, which limit bandwidth and distance OM2 Fiber:
• Core diameter: 50 µm, orange jacket
• Optimized for 1 Gbps Ethernet, supporting distances up to 550 meters
• Also uses LEDs, suitable for short- to medium-range networks OM3 and OM4 Fibers:
• Core diameter: 50 µm, aqua jacket
• Laser-optimized for higher speeds, supporting 10 Gbps Ethernet over 300–550 meters
• Backwards compatible with 1 Gbps, making them suitable for future upgrades OM5 Fiber:
• Core diameter: 50 µm, lime green jacket
• Supports wideband wavelength division multiplexing (WDM) for 40–100 Gbps
• Fully backwards compatible with OM4 and can carry 1 Gbps or 10 Gbps over similar distances

Key Considerations

• Distance: Multimode fiber is ideal for short- to medium-range applications, such as within buildings or campus networks. OM1 and OM2 are sufficient for 100 Mbps and 1 Gbps over shorter distances, while OM3–OM5 are better for longer runs or higher speeds .
• Light Source: LED sources are common for OM1/OM2, while VCSEL lasers are used for OM3–OM5, enabling higher bandwidth and longer distances .
• Future Proofing: If planning for network upgrades, OM3, OM4, or OM5 are recommended because they support higher speeds and longer distances while remaining compatible with 1 Gbps connections . In summary, 100 Mbps and 1 Gbps multimode fiber cables are widely available, with OM1 and OM2 being the traditional choices for these speeds, and OM3–OM5 offering backward compatibility along with higher-speed capabilities for future-proof networks .