A low loss fusion splicing method for ribbon units has been developed and evaluated. Five fibers are heated simultaneously by 50-Hz ac electric discharges. The heating conditions and fiber aligning techniques are discussed in this paper. By using two pairs of electrodes, a stable and uniform heating condition was attained. In the splicing experiment, an average splice loss of 0.11 dB was obtained for 50-μm core diam graded-index silica fibers.
© 1984 Optical Society of America
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