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A basic study has been made of single-mode fiber splicing techniques using direct core monitoring, which includes a highly accurate axis alignment and a post-inspection technique to guarantee the splice-loss standards. The standard conformance reliability, taking into account the core detection uncertainty, was studied by statistical theory. A method for setting acceptance criteria and necessary core detection accuracy has been established. Splice loss due to parameter mismatch, which cannot be estimated by core monitoring, was also examined.
Date of Publication: April 1984