![]() The main goal of communication systems is to provide data transmission with high quality at a longer distance. The optimal design and application of optical fiber are very important for the transmission quality of optical fiber transmission system. ![]() Finally, the latest technological advancesĬontribute to the spread of WDM: the creation of narrow-band semiconductor lasers with a radiation spectrum width of less than 0.1 nm,īroadband optical amplifiers and optical filters for separating close channels. It is also significant that in the SONET/SDH networks, it is now possible to select a speed value (hierarchy level) for a particular channel thatĭoes not depend on the speed of other channels, and then use different transmission methods.Thanks to WDM, it is possible to organize twoway multi-channel traffic transmission over a single fiber (in conventional lines, a pair of fibers is used - for transmission in the forward and Necessary to increase the transmission speed over a separate channel to 10 Gbit/s or higher. Moreover, an already laid fiber-optic cable and standard time multiplexing equipment are used, and it is not The main advantage of WDM technology is that it allows you to overcome the limitations on the channel bandwidth and significantly.2.1.Topic selection background and significanceĢ.Dynamics of research at home and abroadģ.TOPIC SELECTION BACKGROUND AND SIGNIFICANCE
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