| 摘要 |
The head end surface of an optical fiber ( 2 ) and the head end surface of an optical fiber ( 12 ) are butted to each other in an alignment member ( 22 ) of an adapter ( 21 ). In the butting, because one of the members clasping the optical fiber ( 2 ) is a plate ( 4 a) that is short, the optical fiber ( 2 ) is bent and buckled between the left end of the short plate and the right end of the alignment member. Members clasping the optical fiber ( 12 ) are a long plate ( 14 b) and a V-grooved base plate ( 13 ), and the optical fiber ( 12 ) is therefore horizontally fixed between each of right ends of the long plate and of the V-grooved base plate ( 13 ) and the left end of the alignment member. This results that the head end surface of the optical fiber ( 2 ) and the head end surface of the optical fiber ( 12 ) are in tight contact with each other, achieving excellent optical transmission between both optical fibers.
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