Is multimode better than single-mode？

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 –

PARAMETER	SM SFP	MM SFP
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
Cost	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.