| 摘要 |
The present invention relates to a multi-core optical fiber that can realize suppression of crosstalk on an easy and inexpensive basis. The multi-core optical fiber is provided with a plurality of core portions extending along a central axis of the fiber, a common cladding portion integrally holding the core portions inside, a coating layer surrounding the common cladding portion, and a bend applying portion. The bend applying portion, as an example, is provided on a partial region of an outer periphery of the coating layer and applies bending stress to a glass region. |
