Fiber Optic Communication Principle And Advantages

Optical fiber communications technology has emerged from optical communications and has become one of the main pillars of modern communications, playing a decisive role in modern telecommunications networks. Optical fiber communicationuses light waves to transmit signals, using optical fiber as the transmission medium. As an emerging technology, its rapid development and wide range of applications in recent years are rare in the history of communications. It is also an important symbol of the world's new technological revolution and the main transmission tool for various information in the future information society.

1.Fiber Optic Communication Principle

The principle of the optical communication system is to transmit a signal to a remote receiver through an optical fiber. At the transmitting end, the electrical signal is converted into the optical domain, and at the receiving end it is converted back to the original electrical signal. Optical fiber communication systems include optical fiber cables, systems, and devices.

2.Factors Affecting Optical Communications

Attenuation: As light travels through an optical fiber, it loses energy due to absorption, scattering, and other radiation losses. At a certain point, the power level may become too weak for the receiver to distinguish the light signal from the background noise.

Bandwidth: Since optical signals are made up of different frequencies, fiber optics will limit the highest and lowest frequencies and will limit the information carrying capacity.

Dispersion: When optical signals are transmitted through optical fibers, the light pulses will spread or broaden, and this will limit the information carrying capacity at ultra-high bit rates or over ultra-long distances.

FCST Optical Fiber For Telecommunication

3.Advantages Of Fiber Optic Communication

1) Large communication capacity

Theoretically, an optical fiber as thin as a human hair can transmit 100 billion speech channels simultaneously. Although it is far from reaching such a high transmission capacity, the experiment of using one optical fiber to transmit 240,000 voice channels simultaneously has been successful. It is tens or even thousands higher than traditional open wires, coaxial cables, microwaves, etc. More than times. The transmission capacity of an optical fiber is so huge, and an optical cable can include dozens or even thousands of optical fibers. If coupled with wavelength division multiplexing technology, one optical fiber can be used as several or dozens of optical fibers for communication. The capacity is even more amazing.

2)Long relay distance

Since optical fiber has an extremely low attenuation coefficient (currently commercial quartz optical fiber has reached below 0.19dB/km), if equipped with appropriate optical transmitting and optical receiving equipment, the relay distance can reach hundreds of kilometers. This is simply incomparable to traditional cables (1.skm), microwaves (50km), etc. Therefore, optical fiber communication is particularly suitable for long-distance primary and secondary thousand-line communications. In addition, the optical soliton communication test that is already underway has reached the level of transmitting 1.2 million voice channels and 6,000 kilometers without relays. Therefore, it is entirely possible to achieve global relayless optical fiber communicationsin the near future.

3)Good confidentiality performance

When light waves are transmitted in optical fibers, they are only carried out in the core area, and basically no light "leaks" out, so its confidentiality performance is excellent.

4)Strong adaptability

Strong adaptability means that it is not afraid of interference from strong external electromagnetic fields, is corrosion-resistant, and has strong flexibility.

5)Small size, light weight, easy for construction and maintenance

The laying method of optical cables is convenient and flexible. It can be directly buried, pipe laid, underwater or overhead.

6)Rich sources of raw materials and low potential prices

The most basic raw material for manufacturing quartz optical fiber is silica, which is sand, and sand is almost inexhaustible in nature. Therefore its potential price is very low.

4.Band Division

List of Top Companies in Multimode Fiber Optic Cables Market

Berk-Tek Leviton.

CommScope.

Corning.

FiberHome.

Fujikura.

Furukawa.

Futong.

General Cable.

FCST - Better FTTx, Better Life.

We have been designing, manufacturing and supplying passive components for fiber optical networks since 2003. Everything we do in FCST is designed to provide efficient, simple and innovative solutions to solve complicated tasks.

We offer 4 solutions

lFTTH ODN Solution

lUnderground Cable Installation Solution

lAerial Cable Installation Solution

lFiber Tools & Test Solution

As a FTTx solution supplier, we can also do ODM according to project. We will continue to innovate and contribute more to the construction of the global optical fiber network.