METHOD FOR ORGANIZING DUPLEX COMMUNICATION CHANNELS IN ONE FIBER USING OPTICAL SIGNALS OPERATING IN CLOSE DIRECTIONS AND HAVING THE SAME LONG-TERM RUNNING LENGTHS

摘要

A method of transmitting an information signal in a single-fiber optical communication line in opposite directions using a single carrier wavelength, characterized in that they use an optical communication line ending in bidirectional signal dividers for input / output of information signals into an optical communication line, and the total power of the reflected the signal received at the input of the optical receiver for a particular optical communication line, compare the specified value with the maximum allowable mine to isolate the information signal with noise power, and by eliminating and / or redistributing along the path of the optical signal between the transmitter and receiver elements with a high reflection level, or replacing them with elements with a lower reflection level, receive the total power of the reflected signal supplied to the input optical receiver small enough to isolate the information signal from the optical signal supplied to the input of the receiver and, as a result, transmit information signal and in opposite directions using a single carrier wavelength for a particular optical link.