Patent ID: 8718468

Claim:
An optical fiber communication system comprising: an optical transmitter transmitting a plurality of optical signals in parallel, a multicore fiber in which outer circumferences of a plurality of cores are covered with a common clad, and the respective optical signals transmitted in parallel from the optical transmitter are input into the cores such that different optical signals are couple to different cores of the multicore fiber; and an optical receiver receiving the optical signals output in parallel from the respective cores of the multicore fiber, wherein the optical transmitter and the optical receiver perform a MIMO communication, wherein each of the plurality of cores includes a unique transmission path characteristic including a crosstalk among the plurality of cores of the multicore fiber, wherein the optical receiver stores information of the unique transmission path characteristic of the each of the plurality of cores, and the optical receiver obtains signals transmitted from the optical transmitter from the received optical signals by using the information of the transmission path characteristic, wherein the optical transmitter transmits a known pilot signal through the respective cores of the multicore fiber, and wherein the optical receiver receives the known pilot signal transmitted by the optical transmitter, compares the received pilot signal and the known pilot signal to generate the information of the unique transmission path characteristic, and updates the stored information of the unique transmission path characteristic by the generated information of the unique transmission path characteristic.