The present invention relates to a multi-core optical fiber enabling calculation effectively using the MIMO technology. The multi-core optical fiber has a plurality of cores and a cladding and the cores rotate around a fiber axis. A conditional expression defined by an average twist rate ³ (rad/m), the shortest distance A (m) between centers of the cores, a group index n g , an in-use bending radius R (m), the speed of light in vacuum c (m/s), and the ratio of the circumference of a circle to its diameter À is not more than 7.91×10 -12 (s/m 1/2 ) as an example.
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机译：多芯光纤技术领域本发明涉及一种利用MIMO技术能够有效地进行计算的多芯光纤。多芯光纤具有多个芯和包层，并且该芯绕光纤轴旋转。由平均扭曲率³（rad / m），芯线中心之间的最短距离A（m），组索引ng，使用中的弯曲半径R（m），光速in定义的条件表达式。例如，真空度c（m / s）和圆的周长与其直径α之比不大于7.91×10 -12（s / m 1/2）。
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