Pre-Connectorized High Density Optical Fiber Cable Technology (Special Issue on Optical Fibers and Their Applications)
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概要
- 論文の詳細を見る
High density and small diameter optical fiber cables are required in order to construct "Fiber To The Home (FTTH)" to support multi media services economically. By reducing the cable diameter and weight, it will be possible to install longer lengths of cable and use conduits more effectively. Moreover, the development of low loss multifiber connectors and joint boxes will reduce the joining time. It is expected that the achievement of the above will lead to reductions in installation and joining costs. This paper describes the design and performance of 1000-fiber single slotted core cable. Its diameter is 30 mm compared to 40 mm for currently used multi slotted core cable, and its weight is 0.85 kg/m compared to 1.40 kg/m. The reduced cable outer diameter and weight allow us to increase both the installed length from 1 to 2 km (pre-connectorized) and the maximum fiber count from 1000 to 1600 for multiple installation in a conduit. We also describe low loss 4, and 8 mechanically transferable (MT) connectors, a pulling head and a joint box. The average connection loss of those connectors is reduced from 0.35 to 0.2 dB. The cable joining time was greatly reduced from 9 to 4.5 hours by using 5 stacks of multi fiber connectors and newly developed pulling heads and a joint boxes. Finally, we describe field test results for 1000-fiber pre-connectorized cable. In field tests, this preconnectorized cable is sufficiently stable with present installation methods. These results will lead to reductions in installation and joining costs. The 1000-fiber pre-connectorized single slotted core cable is promising with regard to upgrading the access network towards FTTH.
- 社団法人電子情報通信学会の論文
- 1997-04-25
著者
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TOMITA Shigeru
NTT Access Network Service Systems Laboratories, NTT Corporation
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Nagasawa Shuichi
Superconductivity Research Laboratory International Superconductivity Technology Center
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Tomita Shigeru
Ntt Access Network Systems Laboratories
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IWATA Hideyuki
NTT Access Network Systems Laboratories
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NAGASAWA Shinji
NTT Access Network Systems Laboratories
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TANIFUJI Tadatoshi
NTT Access Network Systems Laboratories
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Tomita Shigeru
Ntt Access Network Service Systems Laboratories Ntt Corporation
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Nagasawa Shinji
Ntt Access Network Service Systems Laboratories Ntt Corporation
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