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Fiber
Optic technology is a cutting edge method of sending and receiving
information over great distances without using a repeater, using light
as the data carrier. The signal cannot be disrupted by outside sources
like electricity, rain, humidity, or other things that tend to affect
conventional copper wire signals.
Fiber optic cables are composed of glass, silica Fiber, or plastic.
Silica Fiber is used mainly for high power applications, and plastic
is reserved for isolating sensitive systems from the threat of high
voltages. Neither silica nor plastic are capable of sending
data-streams over long distances because of their inherent impurities
- instead, specialty glass fibers are used.
Fiber optic systems offer high security because they do not induce or
emit any external energy. A signal loss can be detected almost
immediately as long as the system is monitored.
There are two types of optical Fiber cable, Single mode and Multimode
Fiber.
Single mode Fiber is used mainly in operations where information is to
be transferred over great distances, typically between 8 and 150
kilometers. Lasers are used as the light source because they can
produce focused, parallel light that translates into low loss.
Multimode Fiber is designed to be used in 8-10km applications. The
light used to send information is an LED, or Light Emitting Diode.
LEDs don't provide light at the same high frequency as lasers do and
thus the quality of information being sent via the cable cannot be
trusted over great distances.
Fiber optic systems are
more cost effective than conventional means because the initial and
maintenance cost of copper systems is greater than Fiber. Practically,
copper is a non-renewable resource and is become scarcer than the raw
material used to create the glass inside Optical Fiber, sand.
Fiber Optic cables need
to be protected against tensile, torsion, and bending stresses. The
glass fibers are very susceptible to twisting, which can compromise
its integrity. If fibers are bent too far, the optimum characteristic
of the cable is compromised.
Fiber optic cable is an ideal medium for transmitting information.
Networks linked with high speed Optical Fiber will make downloading
times immediate and will provide instant two-way communication.
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