History

In recent centuries, the pioneers of using light beams for transferring information tried the emission of light in the atmosphere. However, dust, smoke, snow, rain, fog, etc. hindered the dissemination of optical information in the atmosphere. Later, tubes and channels were introduced to direct light. In fact, light was directed by mirrors and lenses inside these channels, but setting these mirrors and lenses was difficult, and the method was considered impractical and rejected.

Introduction

Fiber optics or optical fibers are long thin strands, made of a transparent substance like glass or plastic. Optical fibers are used to transfer light beams. Their bandwidth is much wider than normal cables. Thus these fibers can transfer pictures, sound, etc. at more than 10 Gbps. Fiber optic communication systems have a wider bandwidth than cupper cables and less delay than satellite communication systems so that they are considered as a main method for transferring information.

Optical fibers

Badrrayan Jonoob Company, having unique technology such as fusion (optical fiber welding machine) and OTDR (testing and monitoring) as well as qualified technicians, is ready to provide services in the area of counselling, mobilizing, installing, implementing, and maintaining.


Badrrayan Jonoob Company has made a significant investment and has presented special features to satisfy clients and speed up and facilitate information transformation.

For consultation and services, please call Badrrayan Jonoob Company.

More details

Advantages of optical fibers

  • More reasonable prices
  • Thinner fibers
  • No interference
  • High capacity
  • Less energy consumption
  • Non flammable
  • Flexibility
  • Wide bandwidth
  • Not using electricity for communication

Perhaps the first attempts to develop optical communication systems was made by Alexander Grahambell in 1880. Four years after inventing telephone, he invented photo phone, which could transfer sound over a distance of several hundred meters. The photo phone operation is based on modulating the sunlight reflected through oscillating a mirror. The receiver was a photocell. In this method, the light beam was dispersed in the atmosphere so that it was  impossible to transfer information more  than 200 meters. Although the machine worked, it was not commercially successful.

The idea of using refraction for directing light – the basis of modern optical fibers – was suggested by Jacques Babinet & Daniel Colladon (1840) in Paris. John Tyndall (1870) discussed the characteristics of total internal reflection as follows: when light passes from air to water, it leans towards a line which is perpendicular to the water surface. However, when it passes from water to air, it moves away from the upright line, and if the light beam is at an angle of greater than 48° to the upright line, it is completely reflected from the water surface. The angle at which total reflection begins is called critical angle. Two British scientists, Kaku and Cookham, proposed glass as a medium for emission. They sought to achieve transfer speeds of about 100 Mbps in glass. This was associated with severe energy attenuation. According to their method, up to 20 decibels was acceptable. Although they failed, Corning Glass, an America company, could achieve this goal. In the early 1960s, the invention of laser beam allowed communication through optical fibers. In 1966, the scientists developed the theory of transferring light through glass fibers and introduced optical fibers, outperforming normal cables. Optical fibers are lighter and more economical than cupper cables. Also, their transferring capacity is several hundred times more than cupper cables

Since 1980, due to the development of optical fiber technology, optical communication system has been considered as an appropriate option. Until 1985, about 2 million kilometers of optical fiber had been used around the world

Installing OCDF

Optical fibers are used as a connector between switches having optical fiber ports and optical fiber cables …

Laying optical fibers

Farabord Samaneh Paydar Company provides the substructures of optical fibers according to the standards of …

OTDR test

The machine sends a set of light pulses into the network of optical fiber and the end of the network …

Fluke test

The characteristics of fluke DTX 1800: high speed testing (6 to 9 seconds …

Coupling

One of the main operations and services of the company is coupling optical fibers. Since the production of optical fibers …

Fusion

Optical fibers are produced in specific sizes. Thus …

Optical fiber shooting

Another service of Badrrayan Jonoob Company is using modern technology for shooting optical fibers.

Designing the network

To carry out optical fiber projects, standard methods and special equipment are needed …

Excavating and cabling

Excavation procedures are: 1. Meeting safety requirements to start optical fiber contracting operation after …

Security and peripheral monitoring

The intelligent security and peripheral monitoring of Badrrayan Jonoob Company applies modern technology …

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