СПОСОБ КОМПЕНСАЦИИ ДИФФЕРЕНЦИАЛЬНОЙ МОДОВОЙ ЗАДЕРЖКИ МНОГОМОДОВОЙ ВОЛОКОННО-ОПТИЧЕСКОЙ ЛИНИИ ПЕРЕДАЧИ

摘要

FIELD: physics. ^ SUBSTANCE: according to method of compensation of differential mode-dependent delay in multimode optical fibre transmission line implying that at line output to multimode optical fibre is coupled with photodetector system. At that photodetectors are spaced so that each photodetector at output of multimode optical fibre receives separate mode or set of modes. Signals of outputs of each photodetector are then decoded. Received metrics are compared, and code chain symbols are registered by maximum posterior probability criterion. ^ EFFECT: application range expansion. ^ 1 dwg