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    Method for making separable multiple core optical fibers, the resulting fiber structures, and uses thereof
    1.
    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。

    Optical waveguide fiber for local access
    3.
    发明授权
    Optical waveguide fiber for local access 失效

    公开(公告)号：US07043125B2

    公开(公告)日：2006-05-09

    申请号：US10145327

    申请日：2002-05-13

    申请人： Phong Diep ,  James C. Fajardo ,  Ming-Jun Li ,  Daniel A. Nolan ,  Gang Qi

    发明人： Phong Diep ,  James C. Fajardo ,  Ming-Jun Li ,  Daniel A. Nolan ,  Gang Qi

    IPC分类号： G02B6/02

    CPC分类号： G02B6/03666 ,  G02B6/02014 ,  G02B6/02223 ,  G02B6/02266 ,  G02B6/0281 ,  G02B6/03611 ,  G02B6/03627 ,  H04B10/25

    摘要： Disclosed is a single mode optical waveguide fiber having a low cut off wavelength, and mode field diameter and bend resistance similar to step index single mode optical waveguide fiber designed for use at 1310 nm. By including a clad region of raised refractive index spaced apart from the core region of the single mode optical waveguide fiber, the cut off wavelength can be reduced to 850 nm. The single mode optical waveguide fiber in accord with the invention may also have a core region having a reduced refractive index on centerline surrounded by a region of higher refractive index and a clad region which is substantially uniform. The single mode optical waveguide fiber is thus ideally suited for use with the low cost, reliable VCSEL operating at 850 nm, a Fabry-Perot laser operating at 1310 nm, or a distributed feedback laser operating at 1550 nm thereby enabling low cost, easily installed, home access portions of the broadband telecommunications system.

    Monolithic coaxial device
    9.
    发明授权
    Monolithic coaxial device 失效
    单片同轴设备

    公开(公告)号：US06282342B1

    公开(公告)日：2001-08-28

    申请号：US09344395

    申请日：1999-06-25

    申请人： George E. Berkey ,  Daniel A. Nolan

    发明人： George E. Berkey ,  Daniel A. Nolan

    IPC分类号： G02B626

    CPC分类号： G02B6/29395 ,  G02B6/02052 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03638 ,  G02B6/03644 ,  G02B6/0365 ,  G02B6/12007 ,  G02B6/14 ,  G02B6/29332 ,  G02B6/29355 ,  H01S2301/04

    摘要： The present invention provides environmentally stable interferometric and lattice devices that exhibit low excess loss and polarization dependent loss. The interferometric and lattice devices of the present invention are inexpensive and simple to make. The modal noise at the splices between the device pigtails and the system fiber is minimized or eliminated. The present invention is an optical device for filtering a light signal. The optical device has a tunable spectral response. The optical device includes an optical fiber having a core region and a cladding with refractive index n2. The first core region includes a core having a refractive index n1 and a first fiber coupling regulator integral with the first optical fiber. The first fiber coupling regulator couples the light signal between a first optical path and second optical path and substantially prevents the light signal from coupling into a third optical path.

    摘要翻译： 本发明提供了表现出低的过剩损失和偏振相关损耗的环境稳定的干涉测量和晶格器件。 本发明的干涉仪和晶格装置便宜且易于制造。 在设备尾纤与系统光纤之间的接合处的模态噪声被最小化或消除。本发明是用于滤波光信号的光学装置。 该光学器件具有可调光谱响应。 光学装置包括具有芯区域和折射率为n2的包层的光纤。 第一芯区域包括具有折射率n1的芯和与第一光纤成一体的第一光纤耦合调节器。 第一光纤耦合调节器将光信号耦合在第一光路和第二光路之间，并且基本上防止光信号耦合到第三光路中。

    Fiber optic sensor
    10.
    发明授权
    Fiber optic sensor 有权
    光纤传感器

    公开(公告)号：US06201237B1

    公开(公告)日：2001-03-13

    申请号：US09344256

    申请日：1999-06-25

    申请人： George E. Berkey ,  Mark F. Krol ,  Daniel A. Nolan

    发明人： George E. Berkey ,  Mark F. Krol ,  Daniel A. Nolan

    IPC分类号： G01B902

    CPC分类号： G01L1/242 ,  G01D5/344 ,  G01D5/3538 ,  G01K11/32 ,  G02B6/105

    摘要： A fiber optic sensor for simultaneously and independently measuring temperature and axial stress. The fiber sensor includes a pair of polarization-maintaining fibers that have known strain and temperature response curves. Each fiber has a plurality of fiber segments in which the elliptical cores are rotated 45° relative to the preceding core segment. Thus, the phase shift induced by temperature or stress in each of the fibers is detected, and the strain and temperature are derived from the detected phase shift. The fiber optic sensor is capable of dual operation. As both a temperature sensor and an axial stress sensor.

    摘要翻译： 一种用于同时独立测量温度和轴向应力的光纤传感器。 光纤传感器包括具有已知应变和温度响应曲线的一对偏振保持光纤。 每个纤维具有多个纤维段，其中椭圆形芯相对于前一个芯段旋转45°。 因此，检测由每个纤维中的温度或应力引起的相移，并且从所检测的相移导出应变和温度。 光纤传感器能够进行双重操作。 作为温度传感器和轴向应力传感器。