MULTI-CORE OPTICAL FIBER AND OPTICAL CONNECTING COMPONENT

摘要

PROBLEM TO BE SOLVED: To provide an MCF (Multi-Core optical Fiber) and an optical connecting component that can suppress both an MPI (Multi-Path Interference) and occurrence of breakage in an MCF even when the MCF is bent into a small diameter because of reduction in height and size.SOLUTION: An MCF 20 with a coating has a bend part formed such that a portion thereof is bent in the vicinity of an end part, and comprises: multiple cores 21 of a non-coupling type; and a common cladding 22 that has a refractive index lower than that of the multiple cores 21 and surrounds the multiple cores 21. The MCF includes in a lengthwise direction: a large diameter part 22a of a constant outer diameter; and a small diameter part 22b reduced in diameter further than the large diameter part 22a. The MCF also has the bend part at the small diameter part 22b or in the vicinity of the small diameter part.SELECTED DRAWING: Figure 2