| 摘要 |
PROBLEM TO BE SOLVED: To obtain an optical connector ferrule that causes no breaking of an optical fiber in a temperature cycling test or a high temperature/humidity test. SOLUTION: In the optical connector ferrule 1 made of ceramics and provided with a through-hole 12 for inserting an optical fiber, a calcined face and a ground face are mixed on the inner surface of the through-hole 12.
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