EuroWire March 2022

Technical Article

Condition

Result

Transmission loss after installation

Measurement wavelength: 1,550 nm

< 0.3dB/km

Table 3 : Transmission loss after cable installation

ID/OD: 14/18mm

0m

500m

R=1m

250m

Figure 5 : Test track

0 100 200 300 400 500

Installation distance (m)

0

1 2 3 4 5 6 7 8

Time (min)

Figure 6 : Blow installation distance against time

4 Conclusions We have developed a 576F high-density optical fibre cable that can be laid using the air-blown method. Using a 12F rollable ribbon made of optical fibres of 200µm diameter, both smaller diameter/ higher density of the cable and improvement in workability at the time of fusion splicing were achieved. The 12F rollable ribbon made using optical fibres of 200µm diameter can be spliced in the same manner as conventional ribbons. Since the developed cable showed good results in all the cable characteristics evaluation tests and the blowing test, it is confirmed to be good for practical use.

5 References

Courtesy of IWCS Cable & Connectivity Symposium, Charlotte, North Carolina, USA

[1] Antonio C. Silva, Aymee C. Vilela, Eduardo Serpe, Mauricio Nardi, “Influence of two Jackets Design on Blowing Installation Performance of Optical Microcables”, Proceedings of the 67 th IWCS Conference, 16-4, (Oct. 2018). [2] Marta Garcia, Felipe Rebanal, Magnus Wallentin, “The evolution of microcables: a 192F family story”, Proceedings of the 67 th IWCS Conference, 16-1, (Oct. 2018). [3] T. Ishimura, M. Tsukamoto and Y. Hoshino, “Development of 2000-Fiber Ultra-High Density Underground Optical Cable”, Proceedings of the 64 th IWCS Conference, p.457, (Oct. 2015). [4] T. Yasutomi, K. Matsuura and N. Okada, “Development of 6912F Ultra High Density Optical Cable with 200μm fiber Rollable Ribbon”, Proceedings of the 67 th IWCS Conference, P-27, (Oct. 2018).

Optical Fiber Cable Production Dept Furukawa Electric Co, Ltd 20-16 Nobono-cho, Kameyama, Mie, Japan

Tel: +81 595 85 2444 www.furukawaelectric.com

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March 2022