KNOW FIBER
OPTIC NETWORK
On
this occasion I want to share knowledge and also experience about fiber optic
technology, my work coincidence is closely related to fiber optic is hopefully
can give a picture for friends of all friends :)
Perhaps
now among the people of Indonesia is no stranger to the internet technology
that uses fiber optic media to source internet connection, many ISP (Internet
Service Provider) which offers cheap package price by using this fiber optic
media.
 |
| Fiber Optic |
Well
here I will try to explain a bit about fiber optic from several sources and
also my personal experience in field related to fiber optic as explanation of
what is fiber optic? , how is fiber optic working principle? , advantages and
disadvantages of fiber optic? , component fiber optic components?
Okay
start.
Fiber
optic is one type of transmission line made of glass fiber size is quite thin
once more or less the corenya size 125 micron more or less like a human hair,
this core is used to transmit light signals from one place to another to a
distance of 50km without using repeater. Wave signals can be either rapid
encoding of voice communications or computer data. Thus, optical fibers are
particularly suitable for use in telecommunication system applications for now.
How
is fiber optic working principle?
In
principle, optical fiber reflects and refracts the light that travels within
it. The efficiency of the optical fiber is determined by the purity of the
glass / glass composer. The purer the glass material, the less light is
absorbed by the optical fiber.
To
transmit telephone or internet conversations via fiber optics , analog signals
are converted into digital signals. A laser transmitter on one end of the cable
performs on / off to transmit every bit of signal. A modern fiber optic system
with a single laser can transmit millions of bits / second. Or it could be said
laser transmitter on and off millions of times / second.
A
fiber optic cable is made of pure glass fibers, so that despite its long
pounds, light can still be emitted from one end to the other.
What
are the advantages and disadvantages of fiber optic?
there
are several advantages of Fiber optic include:
1. Large
capacity (bandwidth) in transmitting existing information has a high speed, to
reach several gigabit / second.
2. Signal
degradation is smaller, not affected on electromagnetic waves and radio
frequencies Because it is made of glass and pure plastic.
3. Its
size is small, light, thinner and Flexible: it has a smaller diameter than
copper cable making it easier to supply and install.
4. Inexpensive
when compared with the amount of transmission power of copper cable Capacity is
greater
5. Optical
fiber is safe, Non-flammable: no electric current.
Lack
of Fiber Optics
Of
the many advantages offered by the use of fiber optic cable also has
shortcomings, among others, the price is relatively expensive, especially in
connection, because to connect this optical core requires a special tool called
fiber optic splicer and to connect these cores require expertise and
thoroughness in the cable connection optical fiber, because for the optical
core itself should not be nekuk which resulted in the cores are broken.
Components
of fiber optic components
A
communication system is certainly not only supported by one or two components
or devices only. In it there must be many alloy components that work together
with each other. The combination and cooperation will generate many benefits
for the ongoing transfer of information. Thus, be a communication system .
In
it there is a modulation process so that actual information signals can be made
possible through the air. And upon arrival at the destination location, the
demodulation process will happen to open the original information again. If it
runs in a long distance then signal amplifier is definitely needed.
Communication
process on fiber optic system also experience the same thing as other
communication system. The five major components in fiber optic communication
systems are as follows:
1.
Light carrier information
This
is the source of the origin of optical fiber communication system. Light, a
natural component that has many advantages is exploited so clever to carry data
with very high speed and bandwidth. All the advantages of light seem to be used
here. High-speed light, a light that is immune to disturbances, a far-reaching
light, all of which you will feel using this fiber-optic medium.
2.
Optical Transmitter (Transmitter)
Example
of Optical Transmitter / Transmitter
Example of OLT (Optical Laser Transmitter) For
FTTH
Optical
transmitter is a component in charge of sending the light signals into the
carrier media. In this component there is a process of converting analog
electronic and digital signals into a form of light signals. This signal then
serves as a correspondence signal for your data. Optical transmitters are
physically very close to fiber optic media on their use. And even the optical
transmitter is equipped with a lens that will focus light into the fiber optic
media. Light source of this component can vary.
Commonly
used light source is Light Emitting Diode (LED) or solid state laser diode.
Light sources that use LEDs consume less power than lasers. But as a
consequence, the rays emitted by the LED can not travel as far as the laser.
3.
Cable Core Fiber optic
These
components are the main actors in this system. Core fiber optics usually
consists of one or more optical fibers that will serve to guide those lights
from their original location to the destination. Core fiber optic construction
is almost like an electrical cable, but there is little additional protection
to protect the light transmission. Usually fiber optic cable can also be
connected, but with a very complicated process. This cable connection process
is often called splicing term.
Fo 2
Core Cable Example
4.
Optical regenerator / amplifier / repeater
Optical
regenerator or in the Indonesian language light signal amplifier, is actually a
component that does not need to exist when you use fiber optic media in close
range only.
The
light signal you send will not be degraded within 1 km. Therefore, if you do
play in the long distance, this component becomes the main component as
well.Usually optical generator is connected in the middle of fiber optic media
to further strengthen weak signals.
Optical regenerator
5.
Optical receiver
Optical
receivers have the task of capturing all the light transmitted by the optical
transmitter. After light is captured from fiber optic media, this signal will
be decoded into digital signals which is nothing but information transmitted.
Once decoded, the electrical signal is sent to the processing system such as to
television, to computer, to phone, and many other digital devices. Usually
optical receiver is a light sensor such as photocell or photodiode that is very
sensitive and sensitive to light changes.
Fiber
Driver (for point to point)
ONT
( Optical Line Termination)
Well
maybe so much for the article about fiber optic, next for articles related to
fiber optic I will discuss again. Hopefully this little information can provide
an overview for all friends who are learning and want to know about internet
technology by using fiber optic media
Source
and reverence:
Anna
Berny Youtube Chanel
Wikipedia
Network
Komputer.org