Fiber optic technology has become the backbone of modern internet networks because it is capable of transmitting data at very high and stable speeds. In contrast to copper cables which use electrical signals, fiber optic cables use light as a data transmission medium.
This technology is widely used in FTTH (Fiber To The Home) networks to connect internet network centers directly to customers’ homes. With this system, fiber internet services such as iconnet can provide fast, stable internet connections, and are able to support various digital needs such as streaming, gaming, and working from home.
To understand how this technology works, it is important to know the structure of fiber optic cables and how they work. This article will discuss in full the parts of fiber optic cables and the process of transmitting data via fiber optics.
Fiber optic cable is a network cable that is used to transmit data in the form of light signals through very thin glass or plastic fibers.
This technology allows data to be sent very quickly because light can travel at high speeds through the fiber optic core.
Some of the advantages of fiber optic cables include:
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Very high data transfer speed
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Large bandwidth capacity
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Stable over long distances
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Not affected by electromagnetic interference
Because of these advantages, fiber optics is widely used by modern internet service providers.
Fiber optic cables consist of several layers that have different functions to maintain optimal data transmission.
The following is the main structure of fiber optic cable.
The core is the innermost part of the fiber optic cable which functions as the main path for light transmission.
This part is made of glass or plastic with a very high level of purity so that light can propagate well.
The core diameter is usually very small, around:
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8–10 microns for single mode
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50–62.5 microns for multi mode
The smaller the core size, the more directed the light path through it.
Cladding is the layer that surrounds the core and has an important function in keeping light inside the fiber core.
This layer works on the principle of total internal reflection so that the light carrying data does not get out of its path.
Without cladding, light signals will easily escape from the fiber core and cause data loss.
The coating layer functions to protect the optical fiber from physical damage such as pressure, humidity or light impact.
This layer is usually made of elastic plastic material which protects the optical fiber without interfering with the light transmission process.
Strength members are parts that provide mechanical strength to fiber optic cables.
These components are usually made from materials such as:
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kevlar
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fiberglass
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steel wire
Its function is to keep the cable from breaking easily when pulled or installed in a network installation.
The outer jacket is the outermost layer of a fiber optic cable which functions to protect the cable from various environmental factors such as:
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hot
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air
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dust
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physical stress
This layer is usually made from plastic material which is strong and resistant to environmental conditions.
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The way fiber optic cables work is based on sending light signals that carry data through the fiber optic core.
The following is a simple working process for fiber optic cables.
1. Data is converted into light signals
Digital data from network devices will be converted into light signals using transmitting devices such as lasers or LEDs.
2. Light is Sent Through the Core
The light signal then propagates through the fiber optic cable core.
Due to the cladding layer, light will continue to reflect inside the fiber core so that it remains in its path.
3. Signal Received by Receiving Device
At the end of the fiber optic cable, the light signal will be received by a receiving device which then converts it back into digital data.
4. Data Used by User Devices
Once converted back into digital data, the information can be used by devices such as computers, smartphones or smart TVs.
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In the FTTH system, fiber optic cables are used to connect the internet network from the service provider center to the customer’s home.
The network distribution process usually goes through several devices such as:
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OLT at the center of the network
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ODC as distribution cabinet
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ODP as a distribution point to customers
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Drop cable to the customer’s house
Through this system, fiber internet services such as iconnet can provide high-speed internet connections with better stability than conventional networks.
Also read: PLN Icon Plus Strengthens Network Reliability in Jatigede Sumedang Through Fiber Optic Cable Repair
Optical fiber has various advantages that make it the main technology in modern internet networks.
Some of the advantages include:
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Internet speed is very high
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Large bandwidth for many users
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The transmission distance is very long
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Minimal signal interference
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Stable for various digital activities
Therefore, this technology is widely used in building internet networks in various countries.
Fiber optic cables have a structure consisting of several important layers such as core, cladding, coating, strength member and outer jacket. Each part has a special function to keep the data transmission process stable and efficient.
How fiber optic cables work uses light signals that propagate through the fiber optic core using the principle of internal reflection so that data can be sent very quickly.
This technology is the basis for an FTTH network that connects the internet directly to customers’ homes. With good fiber optic infrastructure, internet services such as iconnet can provide internet connections that are fast, stable, and able to support modern digital needs.
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