| 摘要 |
PROBLEM TO BE SOLVED: To provide a multi-core optical fiber having cores of which positions can be easily specified and can be easily fixed, and a method for manufacturing the optical fiber.SOLUTION: An optical fiber 108 includes a plurality of cores 10 and a clad 28 surrounding the cores and having an external shape of Reuleaux polygon in a cross section of the optical fiber.SELECTED DRAWING: Figure 13 |
