What is an optical repeater?
Optical fiber data lines use an optical signal to transmit information. Through the process known as the overall internal reflection, the pulse of the light is held in the optical fiber. When the light travels in the crank pattern along the length of the fiber line, it becomes weakened. The attenuation is a decrease in the power of the pulse of the light that reaches the distant end of the fiber. The optical fiber repeater overcomes the attenuation by restoring the pulse of the light back to the original force before sending it to the next foot line. These light impulses are in almost infrared wavelengths because this wavelength has the lowest attenuation. In networks, these incoming pulses of the lights are translated into an electronic binary signal. This data signal can then be transmitted to individual computers. Some of the longest optical lines from the fiber pass through the Atlantic Ocean. Repetition requires electricity, so each repeater must still be available conventional electric wires.
Old analog signals used amplifiers to extend the signal distance. However, the amplifiers had the adverse effect of amplification of electric noise and the original signal. On the other hand, the optical fiber repeater removes the noise that has entered the signal. This is because digital signals can be electronically separated from unwanted noise. Unlike analog signals, we can also clean the weak and distorted fiber signal and sent further along the network line.
as an optical signal travels, it has a natural tendency to change its shape. This phenomenon is called dispersion, changing the speed of light with wavelength of light. Simply put, a narrow pulse leads to wider what travels. The fibrous optical repeater has the ability to restore the natural shape of the light pulse. After restoring the repeater, the signal is converted to the next section of the optical fibers.
Optics has many advantages over other data transfer methods. Glass fibers do not perform electricrye, so they are not affected by electromagnetic disorders or lighting storms. In addition, there is a lot of information that one optical conductor can carry, larger than copper wires or wireless connections. Theoretically, the only optical line can carry 50 billion voice talks on a single beam of light, although this limit has not been achieved in practice.
Optical fiber has no ability to distinguish light impulses that have different wavelengths. This limits the ability of the repeater to transmit dense optical information again. Information about the lights of multiple wavelengths can be transmitted to a longer dist. These amplifiers have the ability to strengthen the strength of individual wavelengths of light.