| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that the radius of curvature at a folded part of a coated optical fiber is small, and the transmittance loss is large. SOLUTION: In an optical loop-back connector, when a case is made attachable and detachable with respect to the back part of an optical connector ferrule, and a case is mounted at the back part of the ferrule, the folded part of a coated optical fiber which protrudes from the rear-side end surface of the optical connector ferrule to outside is accommodated in the accommodation space of the case; and the folded part accommodated is pressed and supported against the optical connector ferrule side by the inner side of the accommodating space. COPYRIGHT: (C)2003,JPO
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