![]() As optical signals travel through the fiber, the signals become weaker in power. Until it becomes too weak to be detected reliably, the farther you go, the weaker the signal becomes. By using fiber amplifiers along the way, Fiber-optic communication systems and Optical Switch solve this problem. At a point where the signal has become weak, an amplifier or repeater is inserted into the system to boost the strength of the signal so, through another length of fiber cable, it can be transmitted. To keep the signal strength along with the whole fiber link many repeaters or amplifiers can be placed in sequence. For optical signal amplification, electronic repeaters were used traditionally. An Opto-electro-Opto device is a repeater. With a light wave transmitter, It converts the electronic signal back to the optical signal after converting a weak optical signal into an electronic signal, cleaning up the electronic signal. As compared to the incoming optical signal, the light wave transmitter emits much stronger power and thus amplifies it. A purely optical device is an optical fiber amplifier. To electronic signal, it doesn't convert the incoming optical signal at all. Basically, it can indicate by an in-line laser. Dozens of optical channels can be amplified by an Optical Amplifier simultaneously since into electronic signals, they do not convert each channel separately. Doped with a rare-earth element such as praseodymium or erbium, Optical fiber amplifier is a section of optical fiber. For an optical fiber communication system, this is a very convenient form of amplifier since it is an in-line amplifier, thus removes the need for an electrical-optical conversion process and to do the optical-electrical. For the operation of fiber amplifiers, key parameters are the corresponding optical signal wavelengths and the Pump Combiner. Doped in the fiber, these wavelengths depend and also von the type of rare-earth element. The gain saturation effect comes into play for high input powers.
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![]() At an amazing rate, the use of fiber optic systems is expanding. In the past 10 years, almost all twisted pair and coaxial cables are replaced by fiber optic communications systems in network backbones. Fiber optic cables have much more bandwidth, are lighter than traditional copper cables, are easier to install, and they are much smaller than their electronic counterparts! They are easier to pull through existing cable raceways and ducts as fiber optic cables and PLC Splitter are lighter. All the above pros make fiber optic cables very cost-effective and very attractive. This is made possible by wide bandwidth of the fiber. To meet all our video, data, and voice requirements, it provides more than enough capacity. By the invention of optical fiber amplifiers, the transformation from copper to fiber is greatly accelerated. Over very long distances, Optical fiber amplifiers enable optical signal transmission without the expensive process of the conversion back to an optical signal, electronic amplification, and conversion to electronic signals as in traditional regenerators. Today by electronic switches such as those from Cisco, most of the network traffic switching is still performed. But the tremendous effort and interest in using all-optical devices like FBT Splitter for all networks switching in the industry are accumulating. In its almost unlimited transmission capacity lays the most important characteristic of all-optical switching. However, for controlling light with light, it is still in the prototype stage so optical switch circuits, which by electronic circuits are still controlled at this moment. By electronic circuits, the controls are still done although the switching matrix may be optical circuits. Optical fiber is almost the ideal medium in the foreseeable future and for signal transmission available today. Its immunity to electromagnetic interference is the excellent characteristic of optical fiber and Fiber Splitter. Without cross-interference among them, Optical circuits can be crossed in a common space. But the speed of all-optical system development is impeded by problems which are impeding. The compatibility requirements with legacy fiber optic systems are the most basic and obvious reasons. Fiber-optic technologies in addition to communication systems, are also widely used in industrial control, illumination, medicine, endoscopy, and sensing. |
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