What is multimode fiber?Updated 9 months ago

Multimode fiber is an optical fiber with a wider core that allows multiple light modes to propagate, suitable for shorter distances and high-bandwidth applications.

What are the limitations of multimode fiber?

Shorter reach compared to single-mode, bandwidth limitations at longer distances.

What are the different types of multimode fiber?

• OM1: 62.5 µm core, orange jacket, supports 10GbE up to 33m, commonly used for 100MbE.
• OM2: 50 µm core, orange jacket, supports 10GbE up to 82m, commonly used for 1GbE.
• OM3: 50 µm core, aqua jacket, laser-optimized, supports 10GbE up to 300m, 40/100GbE up to 100m.
• OM4: 50 µm core, aqua or violet jacket, VSCEL laser optimized, supports 10GbE up to 550m, 40/100GbE up to 150m.
• OM5: 50 µm core, lime green jacket, WBMMF, supports 4 WDM channels at 28Gbps per channel.

Can I mix different multimode fiber types?

It is not recommended, as it can lead to performance issues. Additionally, multimode fiber depending on the type will have a different core size. For example OM1 65.5um and OM3 50um (Micron)

Learn more about multimode fiber in our Cable Academy blog A Guide to Multimode Fiber Types (OM1-OM5)!