Multimode Fiber is still the front runner in modern Enterprise Data Centers as it provides a low-cost way to transport high data rates over relatively shorter or smaller distances. MMF has evolved from being optimized for multi-megabit-per-second transmission using LED light sources to being optimized for supporting multi gigabit transmission using 850m VCSEL (Vertical Cavity Surface Emitting Laser), which tend to be more affordable than their single mode counterparts.

Sourced through Scoop.it from: blog.viavisolutions.com