Optical fiber cable and an associated method of manufacture
    1.
    发明授权
    Optical fiber cable and an associated method of manufacture 失效
    光纤电缆及相关制造方法

    公开(公告)号:US5590233A

    公开(公告)日:1996-12-31

    申请号:US285287

    申请日:1994-08-03

    IPC分类号: G02B6/04 G02B6/44

    CPC分类号: G02B6/4482

    摘要: The present invention relates to an optical fiber cable, in particular for a distribution network, and comprising an assembly of optical fibers, wherein each of the optical fibers has a mode field diameter lying in the range 7 .mu.m to 9 .mu.m at around 1550 nm, and a cutoff wavelength less than or equal to 1.35 .mu.m, and wherein the optical fibers are assembled together in the cable by being twisted around one another or around a reinforcing element, or by being disposed lengthwise.

    摘要翻译: 本发明涉及一种特别是用于配电网络的光纤电缆,并且包括光纤组件,其中每个光纤的模场直径在1550°附近在7μm至9μm的范围内 nm,截止波长小于或等于1.35μm,并且其中光纤通过彼此扭转或围绕加强元件扭绞或沿纵向设置在电缆中组装在一起。

    In-line manufacture of optical fibres cables with sequential laying
    2.
    发明授权
    In-line manufacture of optical fibres cables with sequential laying 失效
    连续敷设光纤电缆的在线制造

    公开(公告)号:US4155963A

    公开(公告)日:1979-05-22

    申请号:US897713

    申请日:1978-04-19

    摘要: A cable comprising a central armour, a dielectric helically grooved core and optical fibres housed in said grooves which are formed with a lip protruding from one edge is produced by extrusion of the profiled core on the armour heating of the core, laying of one fibre within one groove with the aid of a fibre guide controlled by a positioning slot in said core, bending the lip to close the groove outwardly and repeating said heating, laying, etc. . . for each fibre and taping the structure.

    摘要翻译: 包括中心装甲,电介质螺旋槽芯和光纤被容纳在所述凹槽中的电缆,其形成有从一个边缘突出的唇部,通过在芯的装甲加热上挤出成型芯,将一根纤维铺设在内 借助于由所述芯中的定位槽控制的纤维导向器的一个凹槽,弯曲唇缘以向外关闭凹槽并重复所述加热,铺设等。 。 对于每个纤维和胶带结构。

    Device for connecting on site two optical fiber transmission cables
    3.
    发明授权
    Device for connecting on site two optical fiber transmission cables 失效
    用于连接现场两根光纤传输电缆的设备

    公开(公告)号:US4779951A

    公开(公告)日:1988-10-25

    申请号:US353381

    申请日:1982-03-01

    IPC分类号: G02B6/24 G02B6/44 G02B6/38

    摘要: A device for connecting on site two optical fiber transmission cables comprises a table for installation in a cable tunnel on the site and which is provided with a notch on its circumference, a tight box which bears against the table and whereof the two lateral faces have two openings in which are engaged the two cables to be connected, a splicing bench positioned in the table notch and on which are arranged tools for splicing the two cables, and means for joining the bench to the table.

    摘要翻译: 用于现场连接的两个光纤传输电缆的设备包括一个安装在现场的电缆隧道中并在其周边设有一个槽口的工作台,一个紧靠箱子的紧固箱,两个侧面有两个 其中与要连接的两条电缆接合的开口,位于工作台槽口中的拼接工作台,并且其上设置有用于拼接两根电缆的工具,以及用于将工作台连接到工作台上的装置。

    Non-reciprocal broadband slot line device
    5.
    发明授权
    Non-reciprocal broadband slot line device 失效
    非互惠宽带槽线设备

    公开(公告)号:US4027253A

    公开(公告)日:1977-05-31

    申请号:US470614

    申请日:1974-05-15

    IPC分类号: H01P1/36 H01P1/38

    CPC分类号: H01P1/36 H01P1/38

    摘要: A broadband slot line non reciprocal microwave device which comprises a matched load placed on the face of a ferrite plate which is located within the microwave magnetic field of the slot line, said face being opposite to said slot and designed so that its height is larger than 3 times the width of the slot and its length is at least equal to a half wavelength as propagated within the slot at the maximum operating frequency. Said matched load may be a second slot line or a lossy ferrite plate. The device operates as an isolator with more than 20 dB isolation. It can be designed as a four port circulator.

    摘要翻译: 一种宽带槽线非互易微波装置,其包括放置在位于槽线的微波磁场内的铁氧体板的表面上的匹配负载,所述面与所述槽相对,并且设计成使其高度大于 槽的宽度的3倍,并且其长度至少等于在最大工作频率下在槽内传播的半波长。 所述匹配负载可以是第二槽线或有损铁氧体板。 该器件作为隔离器工作,隔离度大于20 dB。 它可以设计为四端口循环器。

    Optical fiber cable with plural modular bundles of hermtically sealed
optical fibers inside an outer cable sheath
    6.
    发明授权
    Optical fiber cable with plural modular bundles of hermtically sealed optical fibers inside an outer cable sheath 失效
    光纤电缆在外部电缆护套内具有多个模块化的包含热密封光纤的光缆

    公开(公告)号:US5703984A

    公开(公告)日:1997-12-30

    申请号:US530929

    申请日:1995-09-19

    IPC分类号: G02B6/02 G02B6/036 G02B6/44

    摘要: The present invention concerns an optical fiber cable containing a plurality of optical fibers split up into modules, each module being covered with a supporting sheath in contact with the outer optical fibers of the module so as to hold the optical fibers contained in said module tightly so that they are mechanically coupled to one another, the entire set of modules being disposed inside a covering made of an insulating material, which covering is in contact with the outer modules of the set of modules so as to form a compact assembly comprising all of the modules;wherein each optical fiber has a cut-off wavelength of not more than 1,350 nm, and, at a wavelength in the vicinity of 1,550 nm, has a mode field diameter lying in the range 7 .mu.m to 9 .mu.m, and wherein each optical fiber is provided with a substantially hermetic coating on its optical cladding.

    摘要翻译: 本发明涉及一种包含分为多个模块的多根光纤的光纤电缆,每个模块被覆盖有与模块的外部光纤接触的支撑护套,以便将包含在所述模块中的光纤紧密地保持在一起 它们彼此机械耦合,整套模块设置在由绝缘材料制成的覆盖物内部,该覆盖件与该组模块的外部模块接触,以便形成紧凑的组件,其包括所有的 模块; 其中每个光纤具有不大于1350nm的截止波长,并且在1,550nm附近的波长下,模场直径在7μm至9μm的范围内,并且其中每个光学 纤维在其光学包层上设置有基本上气密的涂层。

    Optical fibre laying head for cable production
    7.
    发明授权
    Optical fibre laying head for cable production 失效
    用于电缆生产的光纤敷设头

    公开(公告)号:US4237687A

    公开(公告)日:1980-12-09

    申请号:US16385

    申请日:1979-03-01

    IPC分类号: D07B5/00 G02B6/44 D07B3/00

    摘要: A head for laying optical fibres in a helically grooved cable core consists of a freely rotating mount assembly carrying fibre guides inclined on the axis of travel of the core with an angle smaller than 45.degree.. The fibre guides are elastic hollow tubes ended by a bevel maintained on the bottom of the associated groove. An optical control unit is provided for correct positioning of the mount when starting to lay.

    摘要翻译: 用于将光纤铺设在螺旋槽的电缆芯中的头部由自由旋转的安装组件组成,该安装组件承载在角度小于45度的芯的行进轴线上倾斜的光纤引导件。 纤维引导件是由保持在相关凹槽的底部上的斜面结束的弹性中空管。 提供了一种光学控制单元,用于在开始放置时正确地定位支架。

    Microwave heating devices
    8.
    发明授权
    Microwave heating devices 失效
    微波加热装置

    公开(公告)号:US4144434A

    公开(公告)日:1979-03-13

    申请号:US695919

    申请日:1976-06-14

    CPC分类号: H05B6/788 H01P7/06

    摘要: In a microwave cylindrical heating TM.sub.010 cavity for continuous heating of rods, wires, etc. . . focussing means are provided surrounding the entry and or the exit to locally concentrate the microwave energy on the object to be heated. Said means consists in 45.degree. annular wedge. As variants focussing is achieved by ferromagnetic annulus.

    摘要翻译: 在微波炉中加热TM010型腔,用于连续加热杆,电线等。 。 提供围绕入口和/或出口的聚焦装置,以将微波能量局部地集中在待加热物体上。 所述装置由45°环形楔形件组成。 由于变形聚焦是通过铁磁环实现的。

    Optical fiber cable and an associated method of manufacture
    9.
    发明授权
    Optical fiber cable and an associated method of manufacture 失效
    光纤电缆及相关制造方法

    公开(公告)号:US5544272A

    公开(公告)日:1996-08-06

    申请号:US354154

    申请日:1994-12-06

    IPC分类号: G02B6/04 G02B6/44 G02B6/02

    CPC分类号: G02B6/4482

    摘要: The present invention relates to an optical fiber comprising an optical core surrounded by optical cladding, said optical cladding being surrounded by a substantially hermetic coating, wherein said optical fiber has a mode field diameter lying in the range 7 .mu.m to 9 .mu.m at around 1550 nm, and a cutoff wavelength that is less than or equal to 1.35 .mu.m.

    摘要翻译: 本发明涉及一种光纤,其包括由光学包层包围的光纤芯,所述光学包层由基本上气密的涂层包围,其中所述光纤的模场直径位于周围的7μm至9μm的范围内 1550nm,截止波长小于或等于1.35μm。