MULTI-CORE OPTICAL FIBER AND MULTI-CORE OPTICAL FIBER CABLE

摘要

Provided is a multi-core optical fiber which is capable of achieving a light reception amount equivalent to that of a single-core plastic optical fiber, while being reduced in bending loss. A multi-core optical fiber according to the present invention has a plurality of cores and sea portions that are formed around respective cores. This multi-core optical fiber satisfies at least the following condition (1) or condition (2). Condition (1): The occupancy of the total cross-sectional area of the cores in the outer region of a cross-section of the multi-core optical fiber is 80-95%. Condition (2): The occupancy of the total cross-sectional area of the cores in a cross-section of the multi-core optical fiber is 82-93%.