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    Mode conditioning for multimode fiber systems
    21.
    发明授权
    Mode conditioning for multimode fiber systems 失效
    多模光纤系统的模式调节

    公开(公告)号：US06330382B1

    公开(公告)日：2001-12-11

    申请号：US09442777

    申请日：2000-01-19

    Applicant: Douglas E. Harshbarger ,  Daniel A. Nolan ,  Leo C. Thomas ,  Carlton M. Truesdale

    Inventor： Douglas E. Harshbarger ,  Daniel A. Nolan ,  Leo C. Thomas ,  Carlton M. Truesdale

    IPC: G02B626

    CPC classification number: G02B6/262 ,  G02B6/14 ,  G02B6/2552 ,  G02B6/4203 ,  G02B6/421 ,  H01S5/02284 ,  H01S5/183

    Abstract: A single mode waveguide coupling to a multimode fiber of a high-bandwidth local optical network is made by a tapered coupler that expands the spot size of the propagating beam to fill additional modes of the multimode fiber. The tapered coupler has a core surrounded by inner and outer layers of cladding. The core and the inner cladding layer are drawn down along their length to force light from the core into the surrounding inner cladding layer. The outer cladding layer confines the expanded beam within the core and inner cladding layer.

    Abstract translation: 耦合到高带宽局部光网络的多模光纤的单模波导由锥形耦合器制成，该锥形耦合器扩展了传播光束的光斑尺寸以填充多模光纤的附加模式。 锥形耦合器具有由包层的内层和外层包围的芯。 芯和内包层沿其长度被拉下以迫使来自芯的光进入周围的内包层。 外包层将扩展的束限制在芯和内包层内。

    Optical filter with harmonic elements
    22.
    发明授权
    Optical filter with harmonic elements 失效
    具有谐波元件的滤光片

    公开(公告)号：US06307991B1

    公开(公告)日：2001-10-23

    申请号：US09362758

    申请日：1999-07-28

    Applicant: Daniel A. Nolan

    Inventor： Daniel A. Nolan

    IPC: G02B626

    CPC classification number: G02B6/12011 ,  G02B6/29361 ,  G02B6/29394

    Abstract: Optical interference filters are designed with harmonic elements that can be related to Fourier series approximations of desired filter responses. The harmonic elements can be fashioned as individual waveguides of an array arranged in various formats including planar or concentric geometries. The expansion coefficients of the Fourier series correspond to normalized power distributions among the waveguides, and the harmonic components of the series correspond to incremental optical path length differences between the waveguides.

    Abstract translation: 光学干涉滤波器被设计成可以与期望的滤波器响应的傅里叶级数近似相关的谐波元件。 谐波元件可以被形成为以包括平面或同心几何形状的各种格式布置的阵列的单个波导。 傅立叶级数的扩展系数对应于波导中的归一化功率分布，并且该串联的谐波分量对应于波导之间的增量光程长度差。

    Braking system for an in-line skate
    24.
    发明授权
    Braking system for an in-line skate 失效
    用于直排滑冰的制动系统

    公开(公告)号：US5997014A

    公开(公告)日：1999-12-07

    申请号：US932372

    申请日：1997-09-17

    Applicant: Todd D. Ellis ,  David J. Lacorazza ,  Daniel A. Nolan ,  Lennart B. Johnson

    Inventor： Todd D. Ellis ,  David J. Lacorazza ,  Daniel A. Nolan ,  Lennart B. Johnson

    IPC: A63C17/14 ,  B60T1/14

    CPC classification number: A63C17/1409

    Abstract: A braking system for an in-line skate. The skate includes a boot mounted on a chassis. A cuff is rotatably mounted on the chassis. The chassis also has a plurality of wheels rotatably mounted thereon. The braking system for the skate includes a brake pad housing which is either fixedly or pivotally attached to a rear portion of the cuff, a brake pad disposed in the housing, and a roller arm rotatably mounted on the chassis. The roller arm is spring loaded so that when the brake is not in use, the roller arm is disposed above the wheels. The roller arm has a bearing assembly disposed therein, so that when the brake is actuated by a rearward rotation of the cuff, the brake pad engages the bearing assembly of the roller arm, thereby causing said bearing assembly to engage at least one of the wheels to slow and/or stop the skate. A rear wheel of the skate may be biased to enhance the braking action and reduce wheel wear.

    Abstract translation: 用于直排轮滑的制动系统。 滑板包括一个安装在底盘上的靴子。 袖带可旋转地安装在底盘上。 底盘还具有可旋转地安装在其上的多个轮。 用于溜冰鞋的制动系统包括固定地或可枢转地附接到袖带的后部的制动衬块壳体，设置在壳体中的制动衬块和可旋转地安装在底盘上的辊臂。 辊臂是弹簧加载的，使得当制动器不使用时，辊臂设置在车轮上方。 辊臂具有设置在其中的轴承组件，使得当通过套筒的向后旋转来致动制动器时，制动衬块与辊臂的轴承组件接合，从而使所述轴承组件接合至少一个车轮 减慢和/或停止滑冰。 滑冰鞋的后轮可以被偏置以增强制动动作并减少车轮磨损。

    Coaxial coupler with integrated source/ring detector
    25.
    发明授权
    Coaxial coupler with integrated source/ring detector 失效
    同轴耦合器，集成源/环形探测器

    公开(公告)号：US5418870A

    公开(公告)日：1995-05-23

    申请号：US234065

    申请日：1994-04-28

    Applicant: Donald B. Keck ,  Daniel A. Nolan ,  David L. Weidman

    Inventor： Donald B. Keck ,  Daniel A. Nolan ,  David L. Weidman

    IPC: G02B6/122 ,  G02B6/26 ,  G02B6/28 ,  G02B6/34 ,  G02B6/42 ,  H01L31/173 ,  H04B10/12 ,  H04B10/13 ,  H04B10/135 ,  H04B10/14

    CPC classification number: G02B6/4246 ,  G02B6/262 ,  G02B6/2835 ,  G02B6/4231 ,  H01L31/167 ,  G02B6/29332

    Abstract: The invention features an optical two-way transmission-receiver communications system utilizing a coaxial coupler having a ring waveguide and a core waveguide. A surface of an integrated source/ring detector substrate is positioned adjacent said coaxial coupler endface. A ring detector on the substrate, which receives light transmissions from the ring waveguide, has an annular opening therein. A light source disposed on the substrate within the annular opening in the ring detector directs light transmissions to the core waveguide of the coaxial coupler. An alignment device positions the substrate with respect to the coaxial coupler so that the light source and detector are respectively aligned with the coaxial coupler core and ring waveguides.

    Abstract translation: 本发明的特征在于利用具有环形波导和核心波导的同轴耦合器的光学双向传输 - 接收机通信系统。 集成源/环检测器基板的表面位于所述同轴耦合器端面附近。 接收来自环形波导的光传输的基板上的环形探测器在其中具有环形开口。 设置在环形探测器中的环形开口内的衬底上的光源将光传输引导到同轴耦合器的芯波导。 对准装置将基板相对于同轴耦合器定位，使得光源和检测器分别与同轴耦合器芯和环形波导对准。

    Narrow band Mach-Zehnder filter
    26.
    发明授权
    Narrow band Mach-Zehnder filter 失效
    窄带马赫 - 曾德滤器

    公开(公告)号：US5351325A

    公开(公告)日：1994-09-27

    申请号：US52523

    申请日：1993-04-29

    Applicant: William J. Miller ,  Daniel A. Nolan

    Inventor： William J. Miller ,  Daniel A. Nolan

    IPC: G02B5/28 ,  G02B6/28 ,  G02B6/34 ,  H04B10/02 ,  G02B6/26 ,  G01B9/02

    CPC classification number: G02B6/29355 ,  G02B6/2856 ,  G02B6/2861 ,  G02B6/29332

    Abstract: A Mach-Zehnder filter includes an input coupler for splitting an input signal into N equal output signals, where N>2, and a signal combining coupler for combining N optical signals into a single output signal. It further includes N optical waveguide fibers for connecting the N outputs from the input coupler to the signal combining coupler. Each of the N optical fibers subjects the light propagating therethrough to a delay that is different from the delay experienced by light propagating through each of the other optical fibers. This Mach-Zehnder filter exhibits greater finesse per stage than previous Mach-Zehnder devices, finesse being the ratio of the wavelength separation between adjacent peaks to the peak widths.

    Abstract translation: 马赫 - 曾德滤波器包括一个输入耦合器，用于将输入信号分成N个等于N≥2的输出信号，以及用于将N个光信号组合成单个输出信号的信号组合耦合器。 它还包括用于将来自输入耦合器的N个输出连接到信号组合耦合器的N个光波导光纤。 N个光纤中的每一个使通过其传播的光使延迟不同于通过每个其它光纤传播的光所经历的延迟。 该Mach-Zehnder过滤器比以前的Mach-Zehnder设备具有更高的每个阶段的精细度，其优点是相邻峰值之间的波长间隔与峰值宽度的比值。

    Method of providing a 1xN fiber optic coupler
    27.
    发明授权
    Method of providing a 1xN fiber optic coupler 失效
    提供1xN光纤耦合器的方法

    公开(公告)号：US5017206A

    公开(公告)日：1991-05-21

    申请号：US461054

    申请日：1990-01-04

    Applicant: William J. Miller ,  Daniel A. Nolan ,  Gregory E. Williams

    Inventor： William J. Miller ,  Daniel A. Nolan ,  Gregory E. Williams

    IPC: C03B23/047 ,  G02B6/28 ,  G02B6/287

    CPC classification number: C03B23/0473 ,  G02B6/2856

    Abstract: A fiber optic coupler is formed by assembling a coupler preform having two concentric glass tubes having a gap between them. The shape and/or size of the inner tube relative to the shape and/or size of the outer tube is such that a plurality of output optical fibers can be equally spaced in the gap. An input optical fiber is disposed in an aperture in the inner tube. The input and output fibers extend through the midregion of the resultant coupler preform. The midregion is heated to collapse it about the fibers, and the central portion of the midregion is stretched to reduce the diameter over a predetermined length.

    Optic coupler
    28.
    发明授权
    Optic coupler 失效
    光耦合器

    公开(公告)号：US4948217A

    公开(公告)日：1990-08-14

    申请号：US300961

    申请日：1989-01-23

    Applicant: Donald B. Keck ,  Donald R. Lyons ,  Daniel A. Nolan

    Inventor： Donald B. Keck ,  Donald R. Lyons ,  Daniel A. Nolan

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

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

    Abstract: 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.

    Abstract translation: 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。

    Monolithic optical waveguide having a plurality of cores
    29.
    发明授权
    Monolithic optical waveguide having a plurality of cores 失效
    具有多个芯的单片光波导

    公开(公告)号：US4227771A

    公开(公告)日：1980-10-14

    申请号：US13282

    申请日：1979-02-21

    Applicant: Daniel A. Nolan

    Inventor： Daniel A. Nolan

    IPC: C03B37/014 ,  G02B6/02 ,  G02B5/14

    CPC classification number: G02B6/02042 ,  C03B37/0142 ,  C03B37/01486 ,  C03B2203/20 ,  C03B2203/32 ,  C03B2203/34 ,  C03B2207/02 ,  C03B2207/66 ,  C03B2207/70 ,  G02B2006/0209

    Abstract: A hydrolyzing flame technique is used to build up glass soots of at least two different compositions upon a rotating starting member. The process is repeated until the soots define at least one helically-oriented body of soot of one composition completely enveloped by a soot of a second composition. The soot-covered starting member is then subjected to heat to fuse it whereupon the soots are fused into compositions exhibiting different indices of refraction. The member can then be drawn into a elongate structure comprising an optical waveguide extending helically through the body of the structure.

    Abstract translation: 水解火焰技术用于在旋转的起始构件上建立至少两种不同组成的玻璃烟炱。 重复该过程，直到烟炱定义由第二组合物的烟灰完全包围的一种组合物的至少一个螺旋取向的烟灰体。 然后对烟灰覆盖的起始构件进行加热以使其熔化，由此将烟灰熔化成具有不同折射率的组合物。 然后可以将构件拉成细长结构，其包括螺旋延伸穿过结构体的光波导。

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