MULTICORE OPTICAL FIBER, MULTICORE OPTICAL FIBER CABLE, AND MULTICORE OPTICAL FIBER TRANSMISSION SYSTEM

摘要

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.