A fiber-optic system is proposed for transmission with dynamic power compensation. This system comprises a transmission line having at least 1 optical fiber amplifier. It is planned to connect an optical amplifier with a stabilized coefficient. gain to the input of the line and this amplifier contains a local generator capable of emitting an auxiliary compensation wave, the length of which is located in the gain band of each amplifier with an optical fiber in this line. The invention is applied in networks of fiber optic transmission of information.
Dispersion-compensating optical fiber.
An optical fiber that compensates for dispersion has been developed. This fiber can be used. connected to an optical fiber having chromatic dispersion at the transmitted wavelength, in order to eliminate the latter almost completely. The developed fiber contains a core made of quartz-based glass and a sheath formed on the surface of the core also from the quartz-based glass. A protective layer of polymer is formed over the shell. The diameter of the compensating fiber is <250 µm. External coating thickness =20 µm. Coverage m. executed two-layer.
Optical fiber with controlled dispersion.
An optical fiber with controlled dispersion is proposed in which control is carried out by changing the wavelength of zero-dispersion along the fiber length. Installed optim. dispersion control mode for the case in which the upper and lower wavelength ranges of zero-dispersion are widely spaced and are asymmetrically located relative to the operating wavelength. The use of such a fiber in communication networks can reduce signal distortion during transmission.
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