As the reports and analysis of the market show, the manufacturers of telecommunication cable, including the optic type of fiber and ethernet, are showing unexpected and increasing production rates, especially in India, due to the demand for these cables.
fiber cables
An optical fiber or optic fibre is a long thin transparent material, such as glass or plastic, that transmits light from one end to the other.
Optical fiber has a much higher bandwidth than ordinary cables, and high-bandwidth image data, audio, and other data of up to 10 Gbps and above can be easily transmitted using optical fiber.
Today, optical fiber communication is one of the most important means of information transmission because it has a wider bandwidth than copper cable and lower latency compared to satellite communication.
The history of optical fiber manufacturing In recent centuries, the first people who thought of using light to transmit information experienced the propagation of light in the Earth's atmosphere.
However, the existence of various obstacles such as dust, smoke, snow, rain, fog, etc.
fiber cables best
makes the propagation of optical information in the atmosphere a difficult problem.
Later it was proposed to use tubes and channels to guide the light.
The light in these channels is controlled by mirrors and lenses, but since adjusting these mirrors and lenses is a very difficult task, this work was also found impractical and rejected.
Perhaps the first attempt at the development of optical communication systems was made by Alexander Graham Bell, who in 1880 just four years after the invention of the telephone, invented the photophone, a system that can transmit sound over multiple distances.
Registered optical phones work by vibrating mirrors to modulate reflected sunlight.
The receiver is a photocell.
In this method, light is emitted into the air, making it impossible to transmit information over distances of more than 200 meters.
Because of this, while Bell's device clearly worked, it was not a commercial success.
fiber cables features
The idea of using refraction to guide light (which is the basis of today's optical fibers) was first proposed in Paris in 1840 by Daniel Colardon and Jacques Barbinay.
Furthermore, in 1870, John Tyndall described the properties of total reflection in his book: "When light enters the water from the air, it bends in a direction normal to the surface, and when it enters the air from water, it will bend away from vertical.
If the angle between the beam and the vertical in the radiation from the water is greater than 48 degrees, no light will emerge from the water, and in fact, the light will be totally reflected from the surface of the water.
the total reflection begins is called the critical angle.
Englishmen Kaku and Cookham first proposed the use of glass as a medium.
Their work is based on achieving speeds of around 100 Mbps or more on glass diffusion media.
This transmission rate is associated with high energy attenuation.
Optic fiber manufacturers in India
In the following content, we will introduce some of the Indian manufacturers which produce optic fibre or optical fiber cables in India.
The following is a list of the leading producers of telecom cables in India.
HFCL HFCL activities cover the entirety of the value chain, beginning with the production of cutting-edge telecommunication goods and ending with the installation of telecommunication networks.
It employs more than 1,200 people and has a presence in every region of the country.
HFCL has installed more than 25,000 2G and 3G cell sites and rolled out more than 100,000 kilometers of optical fiber cable networks for telecommunications companies, railways, the oil and gas industry, and high security applications as required by the Defense and internal security establishments.
These projects were carried out for various industries including oil and gas, railways, and the oil and gas industry.
