Strain measurement
    1.
    发明授权
    Strain measurement 失效
    应变测量

    公开(公告)号:US4173412A

    公开(公告)日:1979-11-06

    申请号:US811008

    申请日:1977-06-29

    摘要: A strain sensor providing an optical read-out that is suitable for use in electrically noisy environment or one subject to mechanical vibration consists of one or a set of single mode optical fibres wound round an expanding strain member. The principle of operation relies upon the fact that transverse straining of a single mode fibre destroys mode degeneracy thereby producing birefringence effects that can be rendered obversable using polarized light and a polarization analyzer.

    摘要翻译: 提供适用于电噪声环境或受机械振动影响的光学读出器的应变传感器由缠绕在膨胀应变构件上的一组或一组单模光纤组成。 操作原理依赖于单模光纤的横向应变破坏模式简并性,从而产生双折射效应,其可以使用偏振光和偏振分析器使其变得不可靠。

    Optical fiber connector
    2.
    发明授权
    Optical fiber connector 失效
    光纤连接器

    公开(公告)号:US4185885A

    公开(公告)日:1980-01-29

    申请号:US929792

    申请日:1978-07-31

    IPC分类号: G02B6/26 G02B5/14

    CPC分类号: G02B6/264

    摘要: An optical fiber connector in which each fiber is terminated by a coupling element comprising a cylindrical transparent body having a concave reflector on one end facing into the body and a circular reflector on the opposite end facing the concave reflector. The circular reflector has a diameter less than that of the cylindrical body and is concentric therewith. This arrangement has the advantage that the main focussing elements are reflectors and therefore require far less curvature than lenses.

    摘要翻译: 一种光纤连接器,其中每个光纤由耦合元件端接,所述耦合元件包括圆柱形透明体,所述圆柱形透明体在一端面向所述主体中具有凹形反射器,所述圆形反射器在面向所述凹面反射器的相对端上。 圆形反射器的直径小于圆柱体的直径,并与圆筒体同心。 这种布置的优点在于,主要聚焦元件是反射器,因此需要比透镜少得多的曲率。

    Limited mode optical fiber
    3.
    发明授权
    Limited mode optical fiber 失效
    有限模式光纤

    公开(公告)号:US4205901A

    公开(公告)日:1980-06-03

    申请号:US948447

    申请日:1978-10-04

    摘要: A single mode optical fiber having a central core region of uniform composition and thickness and core end regions each having a core with a graded composition and increasing thickness towards the ends of the fiber. The fiber maintains a constant normalized frequency with a minimum bending loss. Methods are also provided for forming the fibers from a fiber optic preform.

    摘要翻译: 具有均匀组成和厚度的中心芯区域和芯端部区域的单模光纤,每个核心端部区域具有渐变组成并且朝着纤维端部增加的厚度。 纤维保持恒定的归一化频率,具有最小的弯曲损耗。 还提供了用于从光纤预制件形成纤维的方法。

    Method of making optical fiber optical power divider
    4.
    发明授权
    Method of making optical fiber optical power divider 失效
    制造光纤光功率分配器的方法

    公开(公告)号:US4008061A

    公开(公告)日:1977-02-15

    申请号:US646818

    申请日:1976-01-06

    申请人: Melvin M. Ramsay

    发明人: Melvin M. Ramsay

    IPC分类号: G02B6/28 G02B5/14

    CPC分类号: G02B6/2856

    摘要: An optical power divider is disclosed for single mode optical fibers. The fibers to be coupled are inserted in converging bores in a lower refractive index glass block which is collapsed about the fibers and drawn down. In the drawn down region the fibers are reduced in cross-section so that an appreciable proportion of the optical energy will be guided by the fibers while propagating in the surrounding lower refractive index glass block.

    摘要翻译: 公开了用于单模光纤的光功率分配器。 要耦合的纤维被插入在折射率较低的玻璃块中的会聚孔中,该玻璃块围绕纤维折叠并向下拉。 在拉伸区域中,纤维的横截面减小,使得在周围的较低折射率玻璃块中传播时,光能的明显比例将被纤维引导。

    Optical fiber cable
    6.
    发明授权
    Optical fiber cable 失效
    光纤电缆

    公开(公告)号:US4166670A

    公开(公告)日:1979-09-04

    申请号:US816383

    申请日:1977-07-18

    申请人: Melvin M. Ramsay

    发明人: Melvin M. Ramsay

    IPC分类号: H01B11/00 G02B6/44 G02B5/16

    CPC分类号: G02B6/441 G02B6/4429

    摘要: An optical fiber cable comprising a close-packed assembly of cylindrical strength members defining at least one cuspid interstice loosely receiving a single optical fiber therein.

    摘要翻译: 一种光纤电缆,其包括限定至少一个在其中松散地接收单个光纤的至少一个尖端间隙的圆柱形强度构件的紧密组合。

    Bayonet connector coupling arrangement
    7.
    发明授权
    Bayonet connector coupling arrangement 失效
    卡口连接器耦合布置

    公开(公告)号:US4146288A

    公开(公告)日:1979-03-27

    申请号:US850818

    申请日:1977-11-11

    CPC分类号: H01R13/625 G02B6/3891

    摘要: A coupling arrangement for mating electrical or optical connector subassemblies in which opposing coupling members are secured by a bayonet arrangement about their outer perimeters. Resilient (spring) fingers on at least one coupling member engage bayonet key-ways about the opposite member outer surface. The key-way and finger interface at the locked position is along at least one chamfered surface to permit the resilient fingers to deflect radially outwardly and "ride out" of the locked position to allow connector separation in response to excessive cable tension.

    摘要翻译: 用于配合电气或光学连接器子组件的联接装置,其中相对的联接构件通过卡口装置围绕其外周边固定。 在至少一个联接构件上的弹性(弹簧)指状物接合卡口密封件围绕相对的构件外表面。 在锁定位置处的钥匙和手指界面沿着至少一个倒角表面,以允许弹性指状物径向向外偏转并且“锁定”锁定位置,以允许连接器分离以响应过度的电缆张力。

    Plastics packaged optical fibres
    8.
    发明授权
    Plastics packaged optical fibres 失效
    塑料包装光纤

    公开(公告)号:US4756600A

    公开(公告)日:1988-07-12

    申请号:US885424

    申请日:1986-07-14

    IPC分类号: G02B6/44 G02B6/10

    CPC分类号: G02B6/443

    摘要: A design of plastics packaged glass optical fibre in which the plastics packaging consists of a urethane acrylate primary coating, a silicone rubber secondary coating and a nylon tertiary coating, the three coatings coacting to provide a pair of substantially decoupled mechanical filters.

    摘要翻译: 塑料包装玻璃光纤的设计,其中塑料包装由氨基甲酸酯丙烯酸酯一级涂层,硅橡胶二次涂层和尼龙三次涂层组成,三个涂层共同作用以提供一对基本上分离的机械过滤器。

    Method of manufacturing a limited mode optical fiber
    9.
    发明授权
    Method of manufacturing a limited mode optical fiber 失效
    制造有限模式光纤的方法

    公开(公告)号:US4140505A

    公开(公告)日:1979-02-20

    申请号:US704146

    申请日:1976-07-12

    摘要: A single mode optical fiber having a central core region of uniform composition and thickness and core end regions each having a core with a graded composition and increasing thickness. The fiber towards the ends of the fiber maintains a constant normalized frequency with a minimum bending loss. Methods are also provided for forming the fibers from a fiber optic preform.

    摘要翻译: 具有均匀组成和厚度的中心芯区域和芯端部区域的单模光纤纤维每个都具有具有渐变组成和增加厚度的芯。 朝向纤维端部的光纤保持具有最小弯曲损耗的恒定归一化频率。 还提供了用于从光纤预制件形成纤维的方法。