Publication IEICE TRANSACTIONS (1976-1990)Vol.E66No.5pp.305-312 Publication Date: 1983/05/25 Online ISSN: DOI: Print ISSN: 0000-0000 Type of Manuscript: PAPER Category: Optical and Quantum Electronics Keyword:
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Summary: New splicers and connectors for multimode fibers have been fabricated. They contain precision multi-glass-rod arrangement, made by drawing, for aligning the fibers. In the multirod fabrication, the rod deformation of pyrex glass due to fusing is less than 1% in the rod array direction, in the 9001000 heating temperature range. The small deformation of 1% has no effect on splicing loss and fiber setting on the fabricated grooves. The multirod arrangement exhibits about 1 µm fabrication precision, because of the scaling down effect due to the drawing process. The splicers using a linear-multi-glass-rod arrangement exhibit 0.1 dB average splicing losses and slight loss fluctuation, less than 0.05 dB, in the 20 +60 temperature range. The connectors using a polygonal-multi-glass-rod arrangement exhibit 0.2 dB average connecting losses with index matching and 3.5 µm average off-axes. The splicers and connectors are potentially low in cost.