Fiber Optical Technology Comprehensive Summary and Guide

How does it work?

We may think that digitized information is “encoded” or placed in pulses of light for transmission. The information travels along the fiberglass at the speed of light (186,000 miles / second). When it reaches its destination, a decoder converts the light information into an image, audio.

Fiber optic cable

Fiber optic cables consist of the following components:

Core: clear plastic or glass through which light travels
Cladding: glass cover that surrounds the core that acts as a mirror to reflect light back into the core. This is called total internal reflection.
Buffer coating: covers and protects the fiber
Aramid Wire Resistance Member – Strengthens the integrity of data transmission through the optical fibers in the cable.
Protective outer shell – Extruded PVC is typical

Fiber Cable Designs

There are two basic types of cable design. They are: Loose tube (typically used for “OSP” outdoor plant installations) and with tight protection (typically used for indoor installations).

Loose tube fiber cable consists of: (shown as correct figure)。

Multiple 250 µm coated fibers
One or more loose tubes holding those fibers
Gel filling to block moisture and protect the movement of the fibers.
Central Force Member
Aramid yarn strength member
Outer jacket

Strongly shielded fiber cable consists of (as shown in the figure on the left):

900 µm tight buffer around a 250 µm fiber
Central Force Member
Aramid yarn strength member
Outer jacket

Fiber Cable Types

There are two basic types of cable. Simplex and Duplex. Both types of cable come: singlemode and multimode. Singlemode is for long distance cable runs and Multimode is for shorter cable runs.

Fiber optic tools and test equipment

With each fiber installation, special tools and equipment are required to complete the job. Welink recommends the following Fusion Splicers fiber optic tools and equipment for test kits.

Fiber Optic Splitters

A fiber optic splitter combines light signals and divides them into single or multiple outputs. Welink dividers are immune to electromagnetic interference (EMI), consume no electrical power, and add no noise to the system design. Welink dividers can be manufactured in custom fiber lengths and with any type of connector.

Welink is a professional fiber product store in the fiber optic industry, it supplies all kinds of above fiber optic products in the item, and there is good news that it is doing 30% discount from above price, if there are any needs. Welink is a very good choice.

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