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    Three-level air-clad rare-earth doped fiber laser/amplifier
    1.
    发明授权
    Three-level air-clad rare-earth doped fiber laser/amplifier 失效
    三层包覆稀土掺杂光纤激光器/放大器

    公开(公告)号：US06987783B2

    公开(公告)日：2006-01-17

    申请号：US10741211

    申请日：2003-12-19

    申请人： James C. Fajardo ,  Michael T. Gallagher ,  Anping Liu ,  (Ying) Lisa Peng ,  Carlton M. Truesdale ,  Luis A. Zenteno

    发明人： James C. Fajardo ,  Michael T. Gallagher ,  Anping Liu ,  (Ying) Lisa Peng ,  Carlton M. Truesdale ,  Luis A. Zenteno

    IPC分类号： H01S3/30

    CPC分类号： H01S3/063 ,  H01S3/06729 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094042 ,  H01S3/094069 ,  H01S3/09415 ,  H01S3/2308

    摘要： An optically-active air-clad fiber (30) includes a core (34, 84) that facilitates doping with an ion optically excitable and having a three-level optical transition when pumped at a first end (28) of an optical cavity (46) by a multimode pump source (72) at a pump wavelength (64) for lasing at a signal wavelength (66) different than the pump wavelength (64) at a second end (29) of the optical cavity (46), the core (34, 84) having a refractive index, wherein the core (34, 84) is transformed from the first end to proximate the second end (29) thereof such that the optically-active fiber (30) is multimode at the pump wavelength proximate to the first end (28), and is single-mode at the signal wavelength proximate to the second end (29). An air-clad (36, 86) surrounds at least one portion of the core (34, 84) and has a lower effective refractive index than the refractive index of the core (34, 84).

    摘要翻译： 光学活性的空气包层光纤（30）包括：芯（34,84），其有助于掺杂有可激发的离子，并且当在光腔（46）的第一端（28）处泵浦时具有三电平的光学跃迁 ）通过泵浦波长（64）处的多模泵浦源（72），以在光腔（46）的第二端（29）处以不同于泵浦波长（64）的信号波长（66）激发，芯 （34,84），其具有折射率，其中所述芯（34,84）从所述第一端变换到其第二端（29）附近，使得所述光学有源光纤（30）在泵浦波长附近为多模 到第一端（28），并且在靠近第二端（29）的信号波长处是单模。 包层（36,86）围绕芯（34,84）的至少一部分并且具有比芯（34,84）的折射率更低的有效折射率。

    Splice joint and process for joining a microstructured optical fiber and a conventional optical fiber
    4.
    发明授权
    Splice joint and process for joining a microstructured optical fiber and a conventional optical fiber 有权
    用于接合微结构光纤和常规光纤的接头接头和工艺

    公开(公告)号：US06652163B2

    公开(公告)日：2003-11-25

    申请号：US10004375

    申请日：2001-10-31

    申请人： James C. Fajardo ,  Michael T. Gallagher ,  Qi Wu

    发明人： James C. Fajardo ,  Michael T. Gallagher ,  Qi Wu

    IPC分类号： G02B6255

    CPC分类号： G02B6/2551 ,  G02B6/02347

    摘要： An optical splice joint and splicing process are provided for joining an end portion of a microstructured optical fiber having a microstructure formed from an array of holes, and a conventional optical fiber. The optical splice joint is formed from a fused portion of opposing end portions of the microstructured optical fiber and optical fiber, wherein the microstructured optical fiber is surrounded by a jacket that is at least 1.6 times thicker along its radius than the microstructure, and has a tensile strength of at least 30 Kpsi with an optical loss of less than 0.30 dB, and relatively little shrinkage (i.e., about 30%) of the holes forming the microstructure. The splice joint is formed by aligning end portions of the microstructured optical fiber and the optical fiber, in a fusion splicer, and applying fusion heat to the fiber ends in a two step process with a low current arc that is offset with respect to the end of the microstructured optical fiber.

    摘要翻译： 提供了一种光接头接合和接合方法，用于连接具有由孔阵列形成的微结构的微结构光纤的端部和常规的光纤。 光接头由微结构化光纤和光纤的相对端部的熔融部分形成，其中微结构化光纤被围绕其半径大于微结构的1.6倍的护套包围，并具有 拉伸强度至少为30Kpsi，光损耗小于0.30dB，形成微结构的孔的收缩率相对较小（即约30％）。 接合接头通过将微结构化光纤和光纤的端部对准在熔接机中形成，并且以两步法对光纤端部施加融合热，该电流电弧相对于端部偏移 的微结构光纤。

    Method for making separable multiple core optical fibers, the resulting fiber structures, and uses thereof
    5.
    发明授权
    Method for making separable multiple core optical fibers, the resulting fiber structures, and uses thereof 有权
    制造可分离多芯光纤的方法，所得纤维结构及其用途

    公开(公告)号：US06539151B2

    公开(公告)日：2003-03-25

    申请号：US09741887

    申请日：2000-12-22

    申请人： James C. Fajardo ,  Michael T. Gallagher ,  Michael J. Hackert ,  Daniel W. Hawtof ,  George E. Berkey ,  Daniel A. Nolan ,  Selina G. Farwell ,  Peter G. Wigley

    发明人： James C. Fajardo ,  Michael T. Gallagher ,  Michael J. Hackert ,  Daniel W. Hawtof ,  George E. Berkey ,  Daniel A. Nolan ,  Selina G. Farwell ,  Peter G. Wigley

    IPC分类号： G02B604

    CPC分类号： G02B6/02042 ,  C03B37/01205 ,  C03B37/01214 ,  C03B37/027 ,  C03B37/028 ,  C03B37/075 ,  C03B2203/34 ,  C03B2203/40 ,  G02B6/02366 ,  G02B6/29353 ,  G02B6/29364 ,  G02B6/2937

    摘要： Optical fiber structures having at least two cores, whether unitary or separable, may be fabricated by controlling the placement of the cores prior to final processing to make the multi-core fiber structure. When the fiber is to be separable, at least two performs are attached, and the attachment height between adjacent canes is controlled to allow separation to be realized (or attachment to be maintained there between) anywhere along the separable multi-core fiber. These canes are then drawn together to form a desired composite fiber, either or both ends of which may be separated to allow for individual manipulation of fiber ends. The separable multi-core fiber may be utilized to fabricate a dual-port or multi-port optical component in which an input and an output (or multiple input/output) fibers are attached to the component, and the exposed distal ends of the separable multi-core fiber are thereafter separated from one another (even after the entire device is assembled and packaged) to provide separated waveguides for pigtailing or splicing to input or output fibers (or other planar or micro-optic components).

    摘要翻译： 具有至少两个芯的光纤结构（无论是单一的还是可分离的）可以通过在最终加工之前控制芯的放置来制造多芯光纤结构。 当纤维是可分离的时，附加至少两个表面，并且控制相邻拐杖之间的附着高度，以便沿着可分离的多芯纤维在任何地方实现分离（或在其间保持连接）。 然后将这些藤条拉在一起以形成所需的复合纤维，其中任一个或两端可分离，以允许单独操作纤维末端。 可分离的多芯光纤可以用于制造双端口或多端口光学部件，其中输入和输出（或多个输入/输出）光纤附接到部件，并且可分离的多芯光纤的暴露的远端 此后，多芯光纤彼此分离（即使在整个器件组装和封装之后），以提供分离的波导，用于对输入或输出光纤（或其他平面或微光学部件）进行辫子或拼接。

    Railway wheel
    6.
    发明授权
    Railway wheel 失效
    铁路车轮

    公开(公告)号：US5333926A

    公开(公告)日：1994-08-02

    申请号：US36015

    申请日：1993-03-23

    申请人： C. Dale Christie ,  Michael T. Gallagher ,  Michael J. Hendricksen ,  John D. Oliver ,  Mark A. Polzin

    发明人： C. Dale Christie ,  Michael T. Gallagher ,  Michael J. Hendricksen ,  John D. Oliver ,  Mark A. Polzin

    IPC分类号： B60B3/02 ,  B60B17/00

    CPC分类号： B60B17/0006

    摘要： A steel railway wheel with reduced axial flange deflection and reduced, thermally-induced, residual-tensile stress in the wheel rim, has a clearly defined relationship among the plate angle, the maximum depth of curvature of the wheel plate segment, the location of the maximum depth of curvature, the wheel hub and the rim, which relationship is provided for plate segments both concave and convex with respect to the wheel outboard surface.

    摘要翻译： 具有减小的轴向凸缘偏转和减小的轮缘中的热致残余拉伸应力的钢铁车轮具有明确的关系，即板角度，轮板段的最大曲率半径， 最大曲率深度，轮毂和轮辋，该关系为相对于车轮舷外表面的凹部和凸部的板段提供。

    Constant displacement dual position cam stop assembly
    8.
    发明授权
    Constant displacement dual position cam stop assembly 失效
    恒定位置双位置凸轮停止组件

    公开(公告)号：US4714235A

    公开(公告)日：1987-12-22

    申请号：US873005

    申请日：1986-06-16

    申请人： Cal R. Brown ,  Michael T. Gallagher ,  Peter C. Williams

    发明人： Cal R. Brown ,  Michael T. Gallagher ,  Peter C. Williams

    IPC分类号： F16K35/00 ,  F16K5/06 ,  F16K37/00 ,  F16K51/00

    CPC分类号： F16K5/0647 ,  Y10T74/2063 ,  Y10T74/2101 ,  Y10T74/2102

    摘要： A dual position handle and cam stop assembly is provided which is adapted for limiting rotational movement of an associated valve sealing element such as a ball for a ball valve. However, the assembly is applicable to other types of valves such as butterfly and plug valves. The assembly comprises a cam disc and a valve handle having associated first and second handle stop and direction indicators. The indicators are disposed relative to the cam disc for engagement against the disc at first and second handle stop limit locations, respectively. The locations are selectively positionable by rotation of the cam disc while maintaining a constant relative angular spacing for limiting the rotational movement of the valve handle to the constant relative angular spacing. The cam disc has a cardioid-like contour about its peripheral wall for a constant angular displacement of the stop limit locations per a unit degree of cam rotation. The handle stop and direction indicators preferably comprise a symmetrical flat-faced cam follower.

    摘要翻译： 提供了一种双位置手柄和凸轮停止组件，其适于限制相关联的阀密封元件（例如用于球阀的球）的旋转运动。 然而，该组件适用于其他类型的阀，例如蝶阀和旋塞阀。 组件包括凸轮盘和具有关联的第一和第二手柄止动件和方向指示器的阀手柄。 指示器相对于凸轮盘布置，用于分别在第一和第二手柄停止极限位置处与盘接合。 这些位置可以通过凸轮盘的旋转选择性地定位，同时保持恒定的相对角度间隔，以将阀把手的旋转运动限制为恒定的相对角度间隔。 凸轮盘围绕其周围壁具有心形状轮廓，用于每单位凸轮旋转程度的停止极限位置的恒定角位移。 手柄停止和方向指示器优选地包括对称的平面凸轮从动件。

    Ball valve and seat assembly
    9.
    发明授权
    Ball valve and seat assembly 失效
    球阀和座椅总成

    公开(公告)号：US4660591A

    公开(公告)日：1987-04-28

    申请号：US876513

    申请日：1986-06-26

    申请人： Cal R. Brown ,  Michael T. Gallagher ,  Richard F. Wozniak ,  Peter C. Williams

    发明人： Cal R. Brown ,  Michael T. Gallagher ,  Richard F. Wozniak ,  Peter C. Williams

    IPC分类号： F16K5/06 ,  F16K23/00

    CPC分类号： F16K5/0678 ,  Y10T137/5762

    摘要： A ball valve is disclosed having an improved seat ring particularly adapted for sealing a ball member in an end-loaded or top-loaded valve body. The ball is mounted for selective rotation and limited axial movement in a valve body passageway. The seat rings are disposed on diametrically opposite sides of the ball about valve inlet and outlet openings. Frusto-conical disc springs interposed between each seat ring and an associated valve body shoulder urge the seat rings into engagement with the ball. A rigid reinforcing ring is disposed intermediate of the flexible seat ring for integral movement with the seat ring and for reinforcing the seat ring against collapse under pressure. The reinforcing ring is received in an annular channel about the periphery of the seat ring and preferably comprises a split metal ring in a stressed and expanded condition.

    摘要翻译： 公开了一种具有改进的座环的球阀，特别适用于在端部装载或顶装阀体中密封球构件。 球安装成用于选择性旋转并且在阀体通道中限制轴向运动。 座圈围绕阀入口和出口开口设置在球的径向相对侧上。 插入在每个座圈和相关联的阀体肩部之间的截头圆锥形弹簧推动座圈与球接合。 刚性加强环设置在柔性座环的中间，用于与座圈一体地运动，并用于在压力下抵抗塌陷来加强座圈。 加强环被容纳在围绕座环的周边的环形通道中，并且优选地包括处于应力和膨胀状态的裂开的金属环。