Difference Between Single Mode And Multimode Fiber Distance

There are two basic types of optical fibers single mode and multimode.

Difference between single mode and multimode fiber distance.

Multimode fiber optic cable has a large diametral core that allows multiple modes of light to propagate. Because multimode fiber is thicker it can accommodate more signals for. The main difference between single mode and multimode optical fiber is the size of the core. It is usually used for short distance transmissions with led based fiber optic equipment.

Single mode fiber is usually 9 125 in construction. For example in a data center multimode fiber cables are enough for the distance of 300 400 meters. The difference between multimode and single mode fibers the way in which these two fiber types transmit light eventually led to their separate names. We will see the differences taking into consideration various comparison factors of transmission system such as data rate distance attenuation time to travel and so on.

Multimode fiber has a relatively large light carrying core usually 62 5 microns or larger in diameter. Single mode fiber has a small light carrying core of 8 to 10 microns in diameter. Generally designed for systems of moderate to long distance e g metro access and long haul networks single mode optical fibers have a small core size 10 µm that permits only one mode or ray of light to be transmitted. This means that the core to cladding diameter ratio is 9 microns to 125 microns.

When making a decision between single mode and multimode fiber cables the first factor to consider is the fiber distance which you need actually. Single mode fiber has a core that measures around 5um while the multimode fiber core measures 50um or more.