FIELD: radio engineering, communication.
SUBSTANCE: multimode fibre-optic transmission line is probed with a test sequence of optical pulses to select a multimode optical fibre with a single-mode optical transmitter. For sets of values of parameters of standard optical radiation sources of an optical transmitter, standard values of parameters of mismatch at the input and standard values of parameters of the refraction index profile of multimode optical fibres for a given length of the transmission line, a set of standard pulse characteristics of the multimode fibre-optic transmission line is calculated, from which the set of patterns of filter characteristics for electronic compensation of dispersion is determined. The characteristic is then controlled by sorting the set of patterns, and a multimode optical fibre with a single-mode optical radiation source for the multimode fibre-optic transmission line is selected if at least, with one pattern of the filter characteristic for electronic compensation of dispersion, the controlled reception quality parameter of the test sequence lies within a given range.
EFFECT: shorter time for installing multimode transmission lines and wider field of use.
1 dwg
