DIGITAL OPTICAL SIGNAL TRANSMISSION LINE Russian patent published in 2000 - IPC

FIELD: quantum radio engineering and optical communication, applicable in equipment of fiber-optic, laser space, atmospheric and other communication lines. SUBSTANCE: transmission line has an amplifier-modulator, laser, laser power stabilizer, two matching devices, optical signal transmitting medium, photodetector, preamplifier, automatic gain control, optimal filter, clock frequency recovery device. The concept of the claimed invention is in the fact that additionally cut in the known transmission line are two signal converters, N phase regenerators, (N-1) preamplifiers, amplifier - pumping generator, signal conditioning device, which allow separation of noise sources by phase regenerators, this results in reduction of probability of error in transmission of signal over the line, and, consequently, in increase of the energy potential and length of the transmission line. As compared with the immediate analogues, the transmission line has a higher energy potential by 3 to 8 dB, which makes it possible to increase the length of the connecting lines of local networks and the length of the regeneration section of main and intrazone communication networks. EFFECT: reduced cost of equipment of communication systems and networks. 3 dwg