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    Optical grating devices with adjustable chirp
    11.
    发明公开
    Optical grating devices with adjustable chirp 有权
    Optische Gittervorrichtungen mit abstimmbarer variabler Gitterkonstante（“chirp”）

    公开(公告)号：EP0997764A1

    公开(公告)日：2000-05-03

    申请号：EP99308198.3

    申请日：1999-10-18

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Eggleton, Benjamin John ,  Rogers, John A. ,  Strasser, Thomas Andrew

    IPC: G02F1/01

    CPC classification number: G02B6/29395 ,  G02B6/02104 ,  G02B6/02123 ,  G02B6/0218 ,  G02B6/02204 ,  G02B6/2932 ,  G02B6/29322 ,  G02F1/0115 ,  G02F1/0147 ,  G02F2201/307 ,  H01S3/06758 ,  H01S2301/04 ,  H04B10/2941

    Abstract: In accordance with the invention, an optical waveguide grating with adjustable chirp comprises a waveguide grating in thermal contact with an electrically controllable heat-transducing body which varies the temperature along the length of the grating. The heat-transducing body can generate heat on the fiber or remove heat from the fiber to establish a temperature gradient along the grating. In an exemplary embodiment, the heat-transducing body is a resistive film coating whose local resistance varies along the length of the grating. Electrical current passed through the film generates a temperature gradient along the grating approximately proportional to the local resistance of the film, and the amount of chirp can be adjusted by the current. The resulting devices are simple, compact and power efficient.

    Abstract translation: 根据本发明，具有可调啁啾线的光波导光栅包括与电可控热传导体热接触的波导光栅，其沿着光栅的长度改变温度。 热传导体可以在纤维上产生热量或从纤维去除热量以沿着光栅建立温度梯度。 在示例性实施例中，热传导体是其局部电阻沿光栅的长度变化的电阻膜涂层。 电流通过膜沿着光栅产生大约与膜的局部电阻成比例的温度梯度，并且可以通过电流调节啁啾的量。 所得到的器件简单，紧凑，功率高。

    Optical waveguide incorporating dispersed tunable scattering elements
    15.
    发明公开
    Optical waveguide incorporating dispersed tunable scattering elements 审中-公开
    Optischer Wellenleiter mit dispergierten abstimmbarem Streuelementen

    公开(公告)号：EP1213594A1

    公开(公告)日：2002-06-12

    申请号：EP01305706.2

    申请日：2001-07-02

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Eggleton, Benjamin John ,  Mach, Peter ,  Rogers, John A. ,  Westbrook, Paul Stephen ,  Wiltzius, Pierre

    IPC: G02B6/12 ,  G02B6/16

    CPC classification number: G02B6/02366 ,  G02B6/02085 ,  G02B6/02385 ,  G02B6/0239 ,  G02F1/0115 ,  G02F1/1334 ,  G02F1/167 ,  G02F2201/307 ,  G02F2202/32

    Abstract: A unique waveguide structure is provided in which the waveguide contains individual scattering elements that are capable of being tuned to provide local refractive index variations, e.g., on a micron scale - which is on the order of wavelengths typically used for communication system. According to the invention, the waveguide contains a core region (22), a cladding region (24), and a solid or liquid material (28) having the tunable scattering elements dispersed therein, where the material is disposed within the core (22) and/or cladding (24) regions, and/or on the exterior of the cladding region. Useful scattering elements include, for example, liquid crystals dispersed in a polymer (polymer-dispersed liquid crystals - PDLC) or electrophoretic particles dispersed in a liquid medium.

    Abstract translation: 提供了一种独特的波导结构，其中波导包含单独的散射元件，其能够被调谐以提供例如微米级别的局部折射率变化，其通常用于通信系统。 根据本发明，波导包含芯区域（22），包层区域（24）以及其中分散有可调谐散射元件的固体或液体材料（28），其中材料设置在芯体（22）内， 和/或包层（24）区域，和/或在包层区域的外部。 有用的散射元件包括例如分散在聚合物（聚合物分散液晶-PDLC）中的液晶或分散在液体介质中的电泳颗粒。

    Process for fabricating tapered microstructured fiber system and resultant system
    16.
    发明公开
    Process for fabricating tapered microstructured fiber system and resultant system 有权
    Ff系统和结果系统Verfahren zum Herstellen vonverjüngtemmikrostrukturiertem Fasersystem und resultierendes System

    公开(公告)号：EP1199582A1

    公开(公告)日：2002-04-24

    申请号：EP01304127.2

    申请日：2001-05-08

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Chandalia, Juhi ,  Di Giovanni, David John ,  Eggleton, Benjamin John ,  Kosinski, Sandra Greenberg ,  Liu, Xiang ,  Windeler, Robert Scott ,  Xu, Chunhui

    IPC: G02B6/255 ,  G02B6/14 ,  G02B6/16

    CPC classification number: G02B6/02361 ,  G02B6/02366 ,  G02B6/02371 ,  G02B6/02376 ,  G02B6/14 ,  G02B6/2552

    Abstract: The invention involves providing a microstructured fiber having a core region, a cladding region, and one or more axially oriented elements (e.g., capillary air holes) in the cladding region. A portion of the microstructured fiber is then treated, e.g., by heating and stretching the fiber, such that at least one feature of the fiber microstructure is modified along the propagation direction, e.g., the outer diameter of the fiber gets smaller, the axially oriented elements get smaller, or the axially oriented elements collapse. The treatment is selected to provide a resultant fiber length that exhibits particular properties, e.g., mode contraction leading to soliton generation, or mode expansion. Advantageously, the overall fiber length is designed to readily couple to a standard transmission fiber, i.e., the core sizes at the ends of the length are similar to a standard fiber, which allows efficient coupling of light into the microstructured fiber length.

    Abstract translation: 本发明涉及提供在包层区域中具有芯区域，包层区域和一个或多个轴向取向元件（例如，毛细管气孔）的微结构纤维。 然后，例如通过加热和拉伸纤维来处理部分微结构纤维，使得纤维微结构的至少一个特征沿着传播方向被改变，例如，纤维的外径变小，轴向定向 元件变小，或轴向取向的元件塌陷。 选择该处理以提供显示特定性质的所得纤维长度，例如导致孤立生成的模式收缩或模式扩张。 有利地，整个光纤长度被设计成容易地耦合到标准传输光纤，即，长度端部处的芯尺寸类似于标准光纤，其允许光有效地耦合到微结构化光纤长度。

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