-
公开(公告)号：US4767184A
公开(公告)日：1988-08-30
申请号：US35424
申请日：1987-04-07
CPC分类号： G02B6/448 , G02B6/4407 , G02B6/441 , G02B6/4427 , G02B6/443 , G02B6/4479 , G02B6/4494
摘要： An optical fiber cable in which plural optical fibers are joined in a flat assembly. Each assembly is coated with a water-swelling resin, stacked with other such flat assemblies and fitted in a spiral groove of a spacer. A tape is wound around the so-fitted spacer.
-
公开(公告)号：US4826279A
公开(公告)日：1989-05-02
申请号：US146399
申请日：1988-01-21
申请人： Akira Nishimura , Ichiro Ogasawara
发明人： Akira Nishimura , Ichiro Ogasawara
IPC分类号： G02B6/44
CPC分类号： G02B6/4407 , G02B6/4489
摘要： An optical fiber unit for forming high-density optical cables in optical communication networks includes a core body having a twisted tensile strength member extended along the central axis thereof, spiral grooves in the outer surface thereof, and tape-shaped optical fibers placed in the spiral grooves of the core body, with the twist direction of the twisted member and the spiral direction of the grooves being opposite one another. Thus, when the core body is under tension, the angular moment produced in the tensile strength member and that produced in the ribs formed between the spiral grooves are opposite in direction and equal in magnitude, whereby the angular moment of the entire core body is substantially zero. As a result, the optical fiber residual strain produced during manufacture can be controlled with high precision.
-
公开(公告)号：US5082347A
公开(公告)日：1992-01-21
申请号：US582099
申请日：1990-09-14
CPC分类号： G02B6/4403 , G02B6/4482
摘要： A tape-like coated optical fiber comprises: a plurality of optical fiber strands arranged side by side on a plane; and a tape coating of ultraviolet curable resin applied onto an outer periphery of the plurality of optical fiber strands so as to integrate the plurality of optical fiber strands with each other; each of the plurality of optical fiber strands having an optical fiber glass, a coating layer of ultraviolet curable resin provided on an outer periphery of the optical fiber glass, and a colored layer provided on the coating layer of ultraviolet curable resin. The weight of a volatile component contained in a coloring material used in the colored layer at 60.degree. C. is not larger than 5% of weight of the coloring material.
-
公开(公告)号：US4703998A
公开(公告)日：1987-11-03
申请号：US708769
申请日：1985-03-05
申请人： Fumikiyo Uchioke , Ichiro Ogasawara , Shuzo Suzuki
发明人： Fumikiyo Uchioke , Ichiro Ogasawara , Shuzo Suzuki
CPC分类号： G02B6/4494 , G02B6/4401 , G02B6/4427
摘要： A water-tight optical fiber cable constructed without the need of a viscous water-blocking compound. At least one water-absorbing fibrous braid is placed adjacent each optical fiber to absorb any water which may be present in or enter the cable. Additionally, one or more water-absorbing fibrous braids may be disposed between a tape layer and the surrounding protective sheath of the cable.
摘要翻译： 一种不需要粘性防水化合物的水密光缆。 至少一个吸水纤维编织物放置在每个光纤附近以吸收可能存在于或进入电缆的任何水。 此外，一个或多个吸水纤维编织物可以设置在带层和电缆周围的护套之间。
-
公开(公告)号：US4653852A
公开(公告)日：1987-03-31
申请号：US688506
申请日：1985-01-03
申请人： Shuzo Suzuki , Ichiro Ogasawara , Hiroshi Yokota , Shim Sumida
发明人： Shuzo Suzuki , Ichiro Ogasawara , Hiroshi Yokota , Shim Sumida
CPC分类号： G02B6/4403
摘要： A multi core optical fiber made of quartz glass comprising at least two cores the centers of which are arranged substantially on one line. The distances between the centers of the adjacent cores are substantially the same in the longitudinal direction. A first cladding covers the cores and the second cladding covers the first cladding and has a larger refractive index than the first one. The fiber has improved mechanical strength and low cross-talk even if the distance between the adjacent cores is short.
摘要翻译： 一种由石英玻璃制成的多芯光纤，其包括至少两个芯，其中心基本上在一条线上。 相邻芯的中心之间的距离在纵向方向上基本相同。 第一包层覆盖芯，并且第二包层覆盖第一包层并且具有比第一包层更大的折射率。 即使相邻芯之间的距离短，纤维也具有改善的机械强度和低的串扰。
-
-
-
-
搜索结果
5 条记录 (耗时 0.014 秒)
