| 摘要 |
<p>The invention relates to an optical fiber cable of a multi-core single-mode type which consists of a series of groups of a plurality of optical fibers (2) having end portions (2a) fusion spliced to corresponding end portions (2a) of adjacent groups of optical fibers (2) at an optical connection loss of at most 0.5dB. Each of the end portions (2a) has a radius of curvature in meters defined by lambda /1.41 (where lambda is a wavelength in mu m at which said optical fiber cable is used). This structure ensures a sufficiently low optical connection loss of the optical fibers (2) which are economically connected in batch and are easily reconnected in case of trouble. <IMAGE></p> |
