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Should you use Single mode or Multi-mode Fiber?

This is one of the most common question asked by our client when looking to install Fiber Cable. Should I use Single mode or Multimode Fiber? Which is better for my business or which one gives me the best output?

Although Single mode is better having huge bandwidth and a very low attenuation, yet it needs an expensive single mode laser to launch light into it. Concentrated laser light sources are required to send data down single-mode fibers, and the small core diameters make connections expensive.Traditionally multimode fibre is good enough for data communications with a capacity to send over 100Mb/s over 2km when driven by a relatively cheap light emitting diode, LED. Single-mode fibers have cores that are so small that only a single pathway for the light is possible. Single-mode fibers are usually used in long-distance transmissions or in backbone cables, so you find them in both outdoor and indoor cables. This fiber is typically used in long distance, higher bandwidth runs by Telcos, Colleges and Universities, mining firms and areas where longer fiber runs are required. Most single-mode cabling is color-coded yellow.

Multimode fibers, on the other hand, have larger cores; the options for the angles at which the light can enter the cable are greater, and so multiple pathways are possible. Multimode fibers are usually used in an indoor LAN environment in the horizontal cables.  They are also often used in the backbone cabling where great distances are not a problem. Multimode fiber cables are able to carry more data than single mode fibers though they are best for shorter distances because of their higher attenuation levels. Multimode cables are generally color-coded orange or aqua.

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