Comparison Guide

Single-Mode Fiber vs Multi-Mode Fiber

Single-mode and multi-mode fiber optic cables serve different purposes. Single-mode is designed for long distances, while multi-mode is optimized for shorter, in-building connections.

Side-by-Side Comparison

Feature	Single-Mode Fiber	Multi-Mode Fiber
Core Size	9 microns	50 microns (OM3/OM4/OM5)
Max Distance	Up to 100km	Up to 550m (OM4 at 10G)
Light Source	Laser	LED or VCSEL
Cable Color	Yellow jacket	Aqua (OM3/OM4) or lime (OM5)
Transceiver Cost	Higher	Lower
Best For	Building-to-building, campus, WAN	In-building backbone, data center

Our Verdict

Choose single-mode fiber for campus, building-to-building, and WAN connections. Choose multi-mode fiber for in-building backbone and data center connections where distances are under 500 meters.

Unio Digital recommends: Each serves different distance and bandwidth requirements

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Frequently Asked Questions

Use single-mode fiber for distances over 500 meters or building-to-building connections. Use multi-mode fiber for in-building backbone connections and data center links where distances are shorter.

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