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Is multimode better than single-mode?
Knowledge Base + 2024.01.05

It depends on the specific application and requirements. Multimode fiber typically has a larger core size and can carry multiple modes of light, making it suitable for shorter-distance transmissions. Single-mode fiber, on the other hand, has a smaller core size and can carry a single mode of light, making it more suitable for longer-distance transmissions.

In general, single-mode fiber provides higher bandwidth and longer transmission distances, making it more suitable for long-haul and high-speed data transmission, while multimode fiber is often used for shorter distances, such as within buildings or campus networks.

Therefore, neither multimode nor single-mode can be considered inherently "better" than the other, as their suitability depends on the specific needs of the application.

SFP Single Mode vs Multimode –

Abbreviation for
Single Mode SFP
Multimode SFP
Distance Supported
Can Support Greater distance than MM Fiber. SM Fiber can support distance value as high as 80 km or even 120 km
Used for short distance transmission reaching 100 m and 500 m
SM SFP is costly
MM SFP is cheaper than SM SFP
Core Size
Single-mode fiber has a smaller core (9 micron)
Multi-mode fiber has a broader core (62.5 and 50 micron)
Wavelength supported
works mainly in 1310nm and 1550nm wavelength
Works mainly in 850nm wavelength
Preferential usage
Used inside LAN for Switch ,Router and Server connectivity inside Building or Data Center
Required on WAN connectivity like Service provider Handoff to office/Data Center or connectivity between offices.
Colour schema
The colour coded bale clasp and colour arrow on label are generally blue, yellow or purple. And the colour of compatible fiber optic patch cord is yellow.
Their colour coded bale clasp and colour arrow on label are black and the used fiber optic patch cord is usually orange.