Accession Number : ADP002567

Title :   Performance Characteristics of VAD Single Mode Fibers in Mass Production Basis,

Corporate Author : SUMITOMO ELECTRIC INDUSTRIES LTD YOKOHAMA (JAPAN)

Personal Author(s) : Sato,H. ; Kanamori,H. ; Yoshioka,N. ; Kyoto,M. ; Nishimura,M.

Report Date : 17 NOV 1983

Pagination or Media Count : 7

Abstract : The results of investigations on the VAD single mode fibers, fabricated in mass production basis, are presented. In performance characteristics of the VAD single mode fibers operated at 1.3 micron, the low transmission loss could be achieved by improvements on the VAD process and dehydration process. The median and minimum of the transmission losses of the single mode fibers were 0.42 dB/km and 0.32dB/km at 1.3 micron, respectively. Satisfactory properties were also obtained for the other characteristics, cut-off wavelength, spot size, dispersion, and fiber geometrical parameters. These results are chiefly attributed to the successful developments of the high reproducibility of the VAD preforms with a sufficient longitudinal uniformity. The length dependences on transmission characteristics of long-spliced single mode fibers are also discussed, and the additive properties of transmission loss and dispersion are confirmed. (Author)

Descriptors :   *Fibers, *Production engineering, *Performance tests, Fabrication, Transmission loss, Dehydration

Distribution Statement : APPROVED FOR PUBLIC RELEASE