A flexible, transparent strand of glass that carries light from one end to another.  The core of this strand is surrounded by a dielectric cladding that directs the light down the glass due to its refractive index being higher than that of the cladding material.  These cables are designed for use in communications systems to transmit data via light over short or long distances, at very high speeds.

There are different types of fiber for different environments and network requirements.  Multi-mode fiber has a core with a size of 50 to 100 microns in size and carries multiple light rays simultaneously.  These fibers can provide high speeds across moderate distances in modes of either 850 or 1300 nm. With different types of multi-mode fiber with varying core sizes (OM1-62.5micron, OM3-50micron), it is not advisable to mix them within a system.  For growing distances or higher-speed transmissions, it would be recommended to use a single-mode fiber. The core of this type of fiber is closer to 9 microns in size and only transmits a single mode of light. The smaller core and single light wave of either 1310 or 1550, account for much less signal loss across great distances.

Universal Voice/Data performs complete installs of various types and sizes of fiber-optic systems.  This includes pulling fiber-optic cable through many types of environments, whether it be OSP, office environments, riser closets, or data centers.  There are multiple different types of connectors that can be utilized to terminate optical fiber cables. SC, ST, and LC are the most common types, and can be installed via fusion splicing pre-connectorized pig-tails or utilizing mechanical connectors.  Once terminations are complete, proper testing and certification using the latest test equipment, is imperative to ensure functionality.