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61 条记录 (耗时 0.031 秒)

    Waveguide fiber for dispersion and slope compensation
    51.
    发明授权
    Waveguide fiber for dispersion and slope compensation 失效
    波导光纤用于色散和斜率补偿

    公开(公告)号：US06873776B2

    公开(公告)日：2005-03-29

    申请号：US10044455

    申请日：2002-01-11

    申请人： Ming-Jun Li ,  Daniel A. Nolan ,  Gang Qi

    发明人： Ming-Jun Li ,  Daniel A. Nolan ,  Gang Qi

    IPC分类号： H04B10/18 ,  G02B6/22 ,  G02B6/16 ,  G02B6/18

    CPC分类号： G02B6/02261 ,  G02B6/02009 ,  G02B6/0228 ,  G02B6/03611 ,  G02B6/03644 ,  G02B6/03666 ,  H04B10/2525

    摘要： Disclosed is a total dispersion and total dispersion slope compensating optical waveguide fiber. The refractive index profile of the compensating waveguide fiber includes a core region having a central segment and two surrounding annular segments. In an embodiment of the compensating waveguide fiber, a first clad layer adjacent the core region has a refractive index lower than that of a second clad layer adjacent the first clad layer. The optical waveguide fiber in accord with the invention has negative total dispersion and negative total dispersion slope over the operating window of the fiber to be compensated. The invention includes a compensated optical waveguide fiber span which includes a high performance waveguide fiber and a compensating waveguide fiber in accord with the invention.

    摘要翻译： 公开了总色散和总色散斜率补偿光波导光纤。 补偿波导光纤的折射率分布包括具有中心段和两个周围环形段的芯区域。 在补偿波导光纤的实施例中，与芯区相邻的第一覆盖层的折射率低于与第一覆盖层相邻的第二覆盖层的折射率。 根据本发明的光波导纤维在要补偿的光纤的操作窗口上具有负的总色散和负的总色散斜率。 本发明包括补偿光波导，其包括符合本发明的高性能波导光纤和补偿波导光纤。

    Wideband polarization splitter, combiner, isolator and controller
    52.
    发明授权
    Wideband polarization splitter, combiner, isolator and controller 失效
    宽带偏振分离器，组合器，隔离器和控制器

    公开(公告)号：US06175668B1

    公开(公告)日：2001-01-16

    申请号：US09258631

    申请日：1999-02-26

    申请人： Nicholas F. Borrelli ,  Daniel A. Nolan ,  Michael J. Yadlowsky

    发明人： Nicholas F. Borrelli ,  Daniel A. Nolan ,  Michael J. Yadlowsky

    IPC分类号： G02B600

    CPC分类号： G02B6/2746 ,  G02B6/126 ,  G02B6/274 ,  G02B6/2773 ,  G02B6/29355 ,  G02B6/29395 ,  G02B6/29398 ,  G02B2006/12157 ,  G02F1/093 ,  G02F1/3136

    摘要： A wideband polarization splitter and combiner is fabricated using either fiber coupler technology or planar coupler technology. The device splits or combines wideband light signals without losing a substantial amount of spectral information. An antipodal phase generator is used to split a randomly polarized light signal into relatively wideband polarization components for use by polarization sensitive devices. The optical device is fabricated using polarization preserving fibers or waveguides, but it is intended for use in systems employing non-polarization-preserving fibers. The polarization splitter/combiner is also used as the basis for an isolator/circulator and a polarization controller. The polarization controller converts a randomly polarized light signal into a signal having a known and definite state of polarization.

    摘要翻译： 使用光纤耦合器技术或平面耦合器技术制造宽带偏振分离器和组合器。 该器件分离或组合宽带光信号，而不会丢失大量的光谱信息。 对映相位发生器用于将随机偏振光信号分离成相对宽带偏振分量，以供极化敏感器件使用。 该光学器件是使用偏振保留光纤或波导制造的，但是其旨在用于采用非偏振保留光纤的系统中。 偏振分离器/组合器也用作隔离器/环行器和偏振控制器的基础。 偏振控制器将随机偏振光信号转换成具有已知和确定的偏振状态的信号。

    Method of making an optical fiber with an axially decreasing group velocity dispersion
    53.
    发明授权
    Method of making an optical fiber with an axially decreasing group velocity dispersion 失效
    制造具有轴向减小组速度色散的光纤的方法

    公开(公告)号：US5925163A

    公开(公告)日：1999-07-20

    申请号：US767236

    申请日：1996-12-13

    申请人： Alan F. Evans ,  Daniel A. Nolan

    发明人： Alan F. Evans ,  Daniel A. Nolan

    IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  G02B6/02 ,  G02B6/028

    CPC分类号： G02B6/02247 ,  C03B37/01413 ,  C03B37/01807 ,  G02B6/02009 ,  G02B6/03633 ,  G02B6/03644 ,  G02B6/03688 ,  C03B2203/18 ,  C03B2203/22 ,  C03B2203/36 ,  G02B6/02271 ,  G02B6/0286

    摘要： An optical fiber preform is made by supplying the base glass reactant and the dopant glass reactant to a burner that generates a flame in which a stream of glass particles is produced. The burner moves with respect to a rotating mandrel to deposit layers of glass particles on the mandrel. During the deposition of a portion of the preform, the flow rate of the dopant glass reactant is varied in accordance with a first recipe of dopant flow as a function of burner position as the burner moves longitudinally along the substrate to form one of the layers. The flow rate of the dopant glass reactant varies in accordance with a second recipe of dopant flow as a function of burner position as the burner moves longitudinally along the substrate to form a layer adjacent to the one layer. The second recipe is different from the first recipe, and the flow rate of the dopant glass reactant changes during the step of moving the reaction zone to form the one layer.

    摘要翻译： 通过将基础玻璃反应物和掺杂剂玻璃反应剂供应到产生其中产生玻璃颗粒流的火焰的燃烧器来制造光纤预制件。 燃烧器相对于旋转心轴移动以在心轴上沉积玻璃颗粒层。 在预成型件的一部分的沉积期间，随着燃烧器沿着衬底纵向移动以形成层之一，掺杂剂玻璃反应物的流速根据作为燃烧器位置的函数的掺杂剂流的第一配方而变化。 随着燃烧器沿着衬底纵向移动以形成与该层相邻的层，掺杂剂玻璃反应物的流速根据作为燃烧器位置的函数的掺杂剂流的第二配方而变化。 第二配方不同于第一配方，并且掺杂剂玻璃反应物的流速在移动反应区的步骤中变化以形成一层。

    Anti-abrasion and rockering system for an in-line skate
    55.
    发明授权
    Anti-abrasion and rockering system for an in-line skate 失效
    用于直排轮滑的防磨损和摇摆系统

    公开(公告)号：US5823544A

    公开(公告)日：1998-10-20

    申请号：US796428

    申请日：1997-02-06

    申请人： Todd D. Ellis ,  Daniel A. Nolan

    发明人： Todd D. Ellis ,  Daniel A. Nolan

    IPC分类号： A63C17/06 ,  A63C17/26

    CPC分类号： A63C17/06 ,  A63C17/226 ,  A63C2203/42

    摘要： An anti-abrasion and rockering system for an in-line skate. The skate includes a skate boot mounted on a chassis. The chassis includes two sidewalls which are parallel and opposite to each other. Each sidewall has a row of holes formed therein, such that the holes on the first sidewall align with and are opposite to the row of holes on the opposing sidewall. Two of the opposing sets of holes are oblong. A plurality of axles are disposed in the holes on the chassis so that the wheels are rotatably mounted on the axles and between the sidewalls of the chassis. The anti-abrasion and rockering system for the skate includes bushings disposed in the holes in the chassis. The bushings disposed in the oblong holes slide up and down in the holes. An anti-abrasion and rockering plate is disposed on the exterior of each sidewall. Each plate has a first and second row of holes for accommodating the axles. The first row of holes is misaligned so that some of the wheels on the skate are higher with respect to the skating surface than other wheel such that the front and rear wheels of the skate are rockered. The second row of holes is aligned so that all the wheels are at the same distance from the skating surface, so that the wheels are not rockered. To switch from the rockered to non-rockered state, the skater removes the plates from the chassis, turns the plates 180 degrees and reattaches each plate to the chassis.

    摘要翻译： 一种用于直排轮滑的防磨损和摇摆系统。 滑板包括安装在底盘上的滑冰靴。 底盘包括彼此平行和相对的两个侧壁。 每个侧壁具有形成在其中的一排孔，使得第一侧壁上的孔与相对的侧壁上的一排孔对准并且与其相对。 两个相对的孔是椭圆形的。 多个轴设置在底架上的孔中，使得车轮可旋转地安装在轴上和底盘的侧壁之间。 用于溜冰鞋的防磨损和摇摆系统包括设置在底盘孔中的衬套。 设置在长方形孔中的衬套在孔中上下滑动。 在每个侧壁的外部设置防磨损和旋转板。 每个板具有用于容纳轴的第一和第二排孔。 第一排孔未对准，使得溜冰鞋上的一些轮子相对于溜冰表面比其他车轮更高，使得溜冰鞋的前轮和后轮被摇动。 第二排孔被对齐，使得所有的轮子都距离滑冰表面相同的距离，使得轮子不被摇动。 为了从摇摆状态切换到非晃动状态，溜冰者从底盘上移除板，将板旋转180度，并将每个板重新连接到底盘。

    MxO multiplex demultiplex component
    57.
    发明授权
    MxO multiplex demultiplex component 失效
    MxO多路复用分量分量

    公开(公告)号：US5636300A

    公开(公告)日：1997-06-03

    申请号：US353822

    申请日：1994-12-12

    申请人： Donald B. Keck ,  William J. Miller ,  Daniel A. Nolan

    发明人： Donald B. Keck ,  William J. Miller ,  Daniel A. Nolan

    IPC分类号： G02B6/28 ,  G02B6/34 ,  H04J14/08

    CPC分类号： G02B6/12011

    摘要： An M.times.O multiplex/demultiplex device is disclosed. An M.times.N coupler is connected to an N.times.O coupler by phase shifting means. The phase shifting means provide N paths between the couplers, each path having an optical path length different from every other optical path length. The coupling region of the M.times.N coupler must provide for substantially uniform division of light power among the coupler branches when M are the launch ports. Similarly, the coupling region of the N.times.O coupler must provide for substantially uniform division of light power among the coupler branches when O are the launch ports. A preferred embodiment includes two fused waveguide fiber couplers with dissimilar waveguide fibers used as the phase shifting means.

    摘要翻译： 公开了一种MxO复用/解复用器件。 MxN耦合器通过相移装置连接到NxO耦合器。 相移装置在耦合器之间提供N个路径，每个路径具有不同于每个其它光路长度的光路长度。 当M是发射端口时，MxN耦合器的耦合区域必须在耦合器分支之间提供基本均匀的光功率划分。 类似地，当O是发射端口时，NxO耦合器的耦合区域必须在耦合器分支之间提供基本上均匀的光功率划分。 优选实施例包括具有用作相移装置的不同波导纤维的两个熔接波导光纤耦合器。

    Increased capacity optical waveguide
    59.
    发明授权
    Increased capacity optical waveguide 失效
    增加容量的光波导

    公开(公告)号：US5483612A

    公开(公告)日：1996-01-09

    申请号：US323795

    申请日：1994-10-17

    申请人： Daniel Gallagher ,  Daniel A. Nolan ,  David K. Smith ,  J. Richard Toler ,  Grant P. Watkins

    发明人： Daniel Gallagher ,  Daniel A. Nolan ,  David K. Smith ,  J. Richard Toler ,  Grant P. Watkins

    IPC分类号： G02B6/028 ,  G02B6/036 ,  G02B6/44 ,  H04B10/12 ,  H04B10/13 ,  H04B10/135 ,  H04B10/14 ,  G02B6/22

    CPC分类号： G02B6/03644 ,  G02B6/02009 ,  G02B6/02238 ,  G02B6/02257 ,  G02B6/02285 ,  G02B6/02395 ,  G02B6/0286 ,  G02B6/03633 ,  G02B6/03688 ,  G02B6/03611

    摘要： An compound core optical waveguide fiber designed for high data rate or single channel or WDM systems which may include optical amplifiers. The waveguide is characterized by a core having two or three regions wherein the refractive index can be varied. The relative size of the regions may also be varied. By adjusting these variables, the desired mode field diameter, zero dispersion wavelength, dispersion slope and cut off wavelength were obtained. The optical properties are chosen to limit non-linear effects while maintaining low attenuation and acceptable bend performance. In addition, the residual stress within the waveguide is maintained at a low level to limit stress induced birefringence. The low residual stress in the uncoated waveguide, together with a dual coating system having selected moduli and glass transition temperatures results in low polarization mode dispersion.

    摘要翻译： 专为高数据速率或单通道或WDM系统设计的复合核心光波导光纤，其可以包括光放大器。 波导的特征在于具有两个或三个区域的芯，其中折射率可以变化。 区域的相对尺寸也可以变化。 通过调整这些变量，获得所需的模场直径，零色散波长，色散斜率和截止波长。 选择光学性质以限制非线性效应，同时保持低衰减和可接受的弯曲性能。 此外，波导内的残余应力保持在低水平，以限制应力引起的双折射。 未涂布波导中的低残余应力以及具有选择的模量和玻璃化转变温度的双涂层系统导致低偏振模色散。

    Method of making low loss fiber optic coupler
    60.
    发明授权
    Method of making low loss fiber optic coupler 失效
    制造低损耗光纤耦合器的方法

    公开(公告)号：US4799949A

    公开(公告)日：1989-01-24

    申请号：US765652

    申请日：1985-08-15

    申请人： Donald B. Keck ,  Donald R. Lyons ,  Daniel A. Nolan

    发明人： Donald B. Keck ,  Donald R. Lyons ,  Daniel A. Nolan

    IPC分类号： G02B6/00 ,  C03B23/047 ,  C03B37/012 ,  C03B37/014 ,  C03B37/025 ,  C03B37/028 ,  C03B37/16 ,  G02B6/02 ,  G02B6/024 ,  G02B6/26 ,  G02B6/28 ,  C03B37/027 ,  C03B37/018 ,  C03B37/02

    CPC分类号： G02B6/2817 ,  C03B23/0473 ,  C03B37/01205 ,  C03B37/014 ,  C03B37/01466 ,  C03B37/028 ,  G02B6/2808 ,  G02B6/2835 ,  G02B6/2843 ,  C03B2203/02 ,  C03B2203/30 ,  C03B2203/34

    摘要： A low loss fiber optic coupler is fabricated by forming a coupler preform having a plurality of spaced glass cores extending longitudinally through a matrix of glass having a refractive index lower than that of the cores. The preform is heated and stretched to form a glass rod which is then severed into a plurality of units. Heat is applied to the central region of each unit while the ends of the unit are pulled apart to elongate and taper inwardly the heated central region, whereby the cores of the unit are more closely spaced and are of smaller diameter at the central region than they are at the ends of the unit. The unit is then provided with a plurality of optical fibers, one of which extends from each of the cores at the endfaces of the unit. A preferred method of providing the optical fibers involves forming the coupler preform of a matrix glass that is easily dissolved in a solvent. Each of the fiber cores within the matrix is surrounded by a layer of cladding glass that is relatively resistant to dissolving by the solvent. When an end of the unit is immersed in the solvent, the matrix glass dissolves, thereby leaving the unit cores and surrounding solvent-resistant cladding glass protruding from the newly formed endface of the unit.

    摘要翻译： 通过形成具有多个间隔开的玻璃核心的耦合器预制件来制造低损耗光纤耦合器，该玻璃核心纵向延伸穿过折射率低于芯子的折射率的玻璃矩阵。 将预成型件加热并拉伸以形成玻璃棒，然后将其切断成多个单元。 热量被施加到每个单元的中心区域，同时单元的端部被拉开以在加热的中心区域内向内伸长和渐缩，由此该单元的芯更紧密地间隔并且在中心区域具有比它们更小的直径 在单位的末端。 然后，该单元设置有多个光纤，其中一个光纤在单元的端面处从每个芯延伸。 提供光纤的优选方法包括形成易于溶解在溶剂中的基质玻璃的成色剂预成型体。 基体内的每个纤维芯都被一层比较耐溶解溶解的包层玻璃包围。 当单元的一端浸入溶剂中时，基体玻璃溶解，从而使单元芯和周围的耐溶剂包层玻璃从单元的新形成的端面突出。