Gas damped filament dispenser
    1.
    发明授权
    Gas damped filament dispenser 失效
    气体阻尼灯丝分配器

    公开(公告)号:US5104057A

    公开(公告)日:1992-04-14

    申请号:US686081

    申请日:1991-04-16

    摘要: A missile data link filament (12) dispenser (10) is located within an enclosure (20) having a single eyelet opening (26) through which the filament feeds on launch. A quantity of a damping gas having an effective density of at least about two times that of air (28) is provided within the enclosure (20). The gas serves to damp the helical motion of the filament by absorbing its rotational energy, to inhibit ballooning of the filament (12) as it is paid out from the dispenser (10).

    摘要翻译: 导弹数据连接灯丝(12)分配器(10)位于具有单个孔眼开口(26)的外壳(20)内,灯丝在发射时通过该孔口开口供应。 在外壳(20)内设有一定数量的有效密度至少大约为空气(28)密度的两倍的阻尼气体。 气体用于通过吸收其旋转能量来阻尼细丝的螺旋运动,以防止细丝(12)从分配器(10)中支出时膨胀。

    Inside payout optical fiber canister having reduced adhesive in the
optical fiber pack
    2.
    发明授权
    Inside payout optical fiber canister having reduced adhesive in the optical fiber pack 失效
    在光纤包装内具有减少的粘合剂的内部支付光纤罐

    公开(公告)号:US5167382A

    公开(公告)日:1992-12-01

    申请号:US791303

    申请日:1991-11-12

    摘要: An optical fiber canister (90) comprises a hollow housing (102) and an optical fiber pack (98) having a plurality of layers of optical fiber (20) supported on an inner surface of the housing (102) with a free end (96) of the optical fiber (20) positioned to pay out from an interior surface of the fiber pack (98). The optical fiber (20) of the optical fiber pack (98) has an amount of adhesive thereon ranging from zero to an amount sufficient to produce a peel force of less than about 2 grams. There is desirably a support layer (110) of a castable elastomeric material between the inner wall (108) of the hollow housing (102) and the outer surface of the optical fiber pack (98), and a release layer of a release material such as polytetrafluoroethylene between the inner surface of the support layer (110) and the outer surface of the optical fiber pack (98).

    摘要翻译: 光纤罐(90)包括中空壳体(102)和光纤组件(98),光纤组件(98)具有多个光纤(20)层,其支撑在壳体(102)的内表面上,具有自由端(96) )定位成从纤维包(98)的内表面支付的光纤(20)。 光纤组件(98)的光纤(20)的粘合剂数量从零到足以产生小于约2克剥离力的量。 期望在中空壳体(102)的内壁(108)和光纤组件(98)的外表面之间的可铸塑弹性体材料的支撑层(110)以及释放材料的释放层 作为支撑层(110)的内表面与光纤包(98)的外表面之间的聚四氟乙烯。

    Amplifier for optical fiber communication link
    3.
    发明授权
    Amplifier for optical fiber communication link 失效
    光纤通信链路放大器

    公开(公告)号:US5283687A

    公开(公告)日:1994-02-01

    申请号:US929193

    申请日:1992-10-01

    摘要: A bidirectional optical fiber (12) amplifier suitable for use in a dual payout fiber-optic communication link (10) is disclosed herein. The inventive amplifier (12) is typically encasted in a shell or service loop, and is preferably connected between first and second optical fiber segments (18 and 20). The amplifier (12) includes a pump laser (102) for generating optical energy of a first wavelength. A wavelength selective optical coupler (82), in optical communication with the first fiber segment (18) and the pump laser (102), combines optical energy propagating through the first fiber segment (18) with the optical output of the pump laser (102). The amplifier (12) of the present invention further includes a doped optical fiber (114), optically connected between the wavelength selective optical coupler (82) and the second optical fiber segment (20), for amplifying optical energy within a predetermined wavelength spectrum passing therethrough. The inventive amplifier (12) may be advantageously employed within certain fiber-optic communication links in order to enhance optical signal strength.

    摘要翻译: 本文公开了适用于双支付光纤通信链路(10)的双向光纤(12)放大器。 本发明的放大器(12)通常被加工成壳或服务回路,并且优选地连接在第一和第二光纤段(18和20)之间。 放大器(12)包括用于产生第一波长的光能的泵激光器(102)。 与第一光纤段(18)和泵浦激光器(102)光学通信的波长选择光耦合器(82)将通过第一光纤段(18)传播的光能与泵激光器(102)的光输出相结合 )。 本发明的放大器(12)还包括光学连接在波长选择光耦合器(82)和第二光纤段(20)之间的掺杂光纤(114),用于放大经过预定波长光谱的光能 通过。 本发明的放大器(12)可以有利地用于某些光纤通信链路中,以便增强光信号强度。

    Graded optical waveguides
    4.
    发明授权
    Graded optical waveguides 失效
    梯度光波导

    公开(公告)号:US4423925A

    公开(公告)日:1984-01-03

    申请号:US287703

    申请日:1981-07-28

    摘要: A process for preparing a glass rod having a graded refractive index for use as the start rod in the production of optical waveguides is disclosed. The process comprises depositing and sintering borosilicate particles on a glass rod to form a rod having a larger diameter than the original fused silica rod and drawing this rod to obtain a start rod having the same diameter as the original glass rod but exhibiting a partially radially graded refractive index. Optical waveguides prepared from such graded start rods have a more uniformly graded radial index of refraction profile.

    摘要翻译: 公开了一种制备具有渐变折射率的玻璃棒的方法,用于制造光波导的起始杆。 该方法包括将硼硅酸盐颗粒沉积并烧结在玻璃棒上以形成具有比原始熔融石英棒更大直径的棒,并拉伸该棒以获得具有与原始玻璃棒相同直径的起始棒,但呈现部分径向分级 折射率。 由这种分级启动棒制备的光波导具有更均匀分级的径向折射率分布。

    Optical fiber tape assembly and canister
    5.
    发明授权
    Optical fiber tape assembly and canister 失效
    光纤胶带组件和罐

    公开(公告)号:US4957344A

    公开(公告)日:1990-09-18

    申请号:US339754

    申请日:1989-04-18

    IPC分类号: G02B6/00 B65H55/04 G02B6/44

    摘要: An optical fiber is joined, preferably with an ultraviolet curable adhesive, to a strip of a flexible support material such as a plastic tape to form an optical fiber assembly. The assembly is wound onto a bobbin to form an optical fiber canister, which is then paid out upon demand. The optical fiber assembly requires little or no adhesive to hold it in place on the bobbin, as the support material of each turn aids in holding the adjacent turns in place, with the result that the bend radius during payout is increased.

    Apparatus and method for packaging optical fibers
    7.
    发明授权
    Apparatus and method for packaging optical fibers 失效
    用于包装光纤的装置和方法

    公开(公告)号:US4219274A

    公开(公告)日:1980-08-26

    申请号:US928454

    申请日:1978-07-27

    摘要: A packaging apparatus for optical fiber is disclosed. The apparatus allows the fiber to be tested while in the packaged condition.The apparatus comprises a cylindrical reel and means for mechanically reducing the circumference of the reel comprising a flexible sheath fastened longitudinally to a portion of the reel, thereby defining a longitudinal cavity bounded by said sheath and the surface of a portion of the reel and at least one longitudinally removable spacer member disposed with said sheath, abutting the reel.

    摘要翻译: 公开了一种用于光纤的包装设备。 该装置允许在包装状态下对纤维进行测试。 该设备包括圆柱形卷轴和用于机械地减小卷轴周长的装置,该装置包括纵向地紧固于卷轴的一部分的柔性护套,由此限定由所述护套和卷轴的一部分的表面限定的纵向空腔,并且至少 与所述护套一起设置的一个纵向可拆卸的间隔件邻接卷轴。

    Helical bend proof testing of optical fibers
    8.
    发明授权
    Helical bend proof testing of optical fibers 失效
    光纤螺旋弯曲试验

    公开(公告)号:US4957364A

    公开(公告)日:1990-09-18

    申请号:US339845

    申请日:1989-04-18

    申请人: Ronald B. Chesler

    发明人: Ronald B. Chesler

    CPC分类号: G01M11/088

    摘要: An optical fiber is proof tested by bending it relative to the fiber axis by a preselected amount, in all directions and at all locations along the length of the fiber. In one approach, the optical fiber is wrapped around a cylindrical mandrel in a helical pattern and drawn over the mandrel through its entire length. With the preferred helical angle of about 45 degrees, two wraps of the optical fiber around the mandrel ensure that all of the fiber will be bent in all directions. If a flaw exists in the optical fiber that would cause failure at any amount of bending below that of the preselected amount, this proof test will cause the fiber to fail so that the weak point may be eliminated.

    Process for the production of optical fiber
    9.
    发明授权
    Process for the production of optical fiber 失效
    光纤生产工艺

    公开(公告)号:US4341541A

    公开(公告)日:1982-07-27

    申请号:US57458

    申请日:1979-07-13

    IPC分类号: C03B37/014 C03B19/06

    摘要: A process for preparing a preform for the production of optical fiber by depositing and sintering glass particles upon a glass rod is disclosed. The process comprises directing a stream of glass particles onto the surface of a glass rod which is slowly rotated and moved in a translational direction so as to obtain even deposition of the particulate matter. A separate heat source is supplied beyond the point of deposition of the particles and continuously sinters the deposited particulate as the rod undergoes repeated translation.

    摘要翻译: 公开了一种通过在玻璃棒上沉积和烧结玻璃颗粒来制备用于生产光纤的预制棒的方法。 该方法包括将玻璃颗粒流引导到玻璃棒的表面上,该玻璃棒在平移方向上缓慢旋转和移动,以获得颗粒物质的均匀沉积。 供应单独的热源超过颗粒的沉积点,并且当棒经历重复平移时,连续地烧结沉积的颗粒。

    Telecommunication systems using optical waveguides
    10.
    发明授权
    Telecommunication systems using optical waveguides 失效
    使用光波导的电信系统

    公开(公告)号:US4232938A

    公开(公告)日:1980-11-11

    申请号:US949032

    申请日:1978-10-06

    摘要: A method for transmitting light signals through optical waveguides is disclosed. The method comprises passing light emitted from a source of light, such as a laser, through a plurality of individual, longitudinally connected optical waveguides having progressively greater core diameters. Telecommunications systems for implementing the method are also disclosed.

    摘要翻译: 公开了一种通过光波导传输光信号的方法。 该方法包括使从诸如激光器的光源发射的光穿过具有逐渐更大的芯径的多个单独的纵向连接的光波导。 还公开了用于实现该方法的电信系统。