| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a multilayer optical fiber that realizes single mode transmission and that facilitates alignment in the case of connecting the optical fiber. <P>SOLUTION: The multilayer optical fiber is designed to be a double layer optical fiber 10 composed of a first core 11, a first clad 12 surrounding the first core 11, a second core 14 surrounding the first clad 12, and a second clad 15 surrounding the second core. The first clad 12, the second core 14 and the second clad 15 are formed coaxially with the center axis of the first core 11, the effective refractive index of the first clad 12 is made lower than that of the second clad 15, the refractive index of the first core 11 is made higher than the effective index of the first clad 12, and the refractive index of the second core 14 is made higher than the effective index of the second clad 15. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
