DEVICES AND METHODS FOR DYNAMIC DISPERSION COMPENSATION

    公开(公告)号:WO2004034102A3

    公开(公告)日:2004-12-16

    申请号:PCT/US0332319

    申请日:2003-10-10

    Applicant: CORNING INC

    Abstract: The present invention provides devices and methods for dispersion compensation. According to one embodiment of the invention, a dispersion compensating device includes a negative dispersion fiber having an input configured to receive the optical signal, the negative dispersion fiber having a length and dispersion sufficient to remove any positive chirp from each wavelength channel of the optical signal, thereby outputting a negatively chirped optical signal; an amplifying device configured to amplify the negatively chirped optical signal; and a nonlinear positive dispersion fiber configured to receive the negatively chirped optical signal. The devices of the present invention provide broadband compensation for a systems having a wide range of variable residual dispersions.

    TWO-FIBER OPTICAL SHARED PROTECTION RING WITH A BI-DIRECTIONAL 4X4 OPTICAL SWITCH FABRIC
    107.
    发明申请
    TWO-FIBER OPTICAL SHARED PROTECTION RING WITH A BI-DIRECTIONAL 4X4 OPTICAL SWITCH FABRIC 审中-公开
    双向4X4光纤开关双面光纤共享保护环

    公开(公告)号:WO02082157A9

    公开(公告)日:2003-07-31

    申请号:PCT/US0210803

    申请日:2002-04-05

    Applicant: CORNING INC

    CPC classification number: H04J14/0295 H04J14/0201 H04J14/0283 H04J14/0291

    Abstract: The present invention is directed to a protection switch (10) for use in a node of a two-fiber optical shared protection ring. The two-fiber optical shared protection ring propagates at least one bi-directional channel. The switch includes an N x N optical switch fabric system disposed in the node. The N x N optical switch fabric (20) includes 2N input/output (I/O) ports, wherein N is four, or an integer multiple of four. Each optical switch fabric (20) is configured to switch at least one bi-directional channel. At least N three-port optical devices (40, 42, 46, 48, 50, 52, 54) are coupled to N of the I/O ports. Each three-port optical device (40, 42, 46, 48, 50, 52, 54) includes a bi-directional port coupled to an I/O port. The bi-directional port is configured to propagate the at least one bi-directional channel.

    Abstract translation: 本发明涉及一种用于双光纤共享保护环的节点中的保护开关(10)。 双光纤共享保护环传播至少一个双向通道。 交换机包括设置在节点中的N×N光交换机系统。 N×N光交换结构(20)包括2N个输入/输出(I / O)端口,其中N为4,或4的整数倍。 每个光交换结构(20)被配置为切换至少一个双向信道。 至少N个三端口光学设备(40,42,46,48,50,52,54)耦合到I / O端口的N个。 每个三端口光学设备(40,42,46,48,50,52,54)包括耦合到I / O端口的双向端口。 双向端口被配置为传播至少一个双向信道。

    OPTICAL FIBER WITH LARGE EFFECTIVE AREA, LOW DISPERSION AND LOW DISPERSION SLOPE
    109.
    发明申请
    OPTICAL FIBER WITH LARGE EFFECTIVE AREA, LOW DISPERSION AND LOW DISPERSION SLOPE 审中-公开
    具有大面积有效面积,低分散度和低分散斜率的光纤

    公开(公告)号:WO0214919A3

    公开(公告)日:2003-03-13

    申请号:PCT/US0121199

    申请日:2001-07-03

    Applicant: CORNING INC

    Inventor: LI MING-JUN

    Abstract: A single mode optical waveguide fiber having a relatively large effective area and a low dispersion slope has a segmented core having a central segment, a first annular segment, and a second annular segment. Each segment has a relative refractive index percent, and an inner and outer radius. The relative refractive index percent and the radii of each core segment are chosen from the following ranges: the relative index of the central segment within the range of about 0.53 % to about 0.9 %; the relative index of the first annular segment within the range of about -0.2 % to about 0.15 %; the relative index of the second annular segment within the range of about 0.1 % to about 0.4 %; the outer radius of the central segment within the range of about 3.1 ñm and about 5.0 ñm; and the center radius of the third annular segment within the range of about 6.18 ñm and about 7.7 ñm.

    Abstract translation: 具有相对较大有效面积和低色散斜率的单模光纤光纤具有分段芯,其具有中心段,第一环形段和第二环形段。 每个段具有相对折射率百分比,以及内半径和外半径。 每个核心片段的相对折射率百分比和半径选自以下范围:中心片段的相对指数在约0.53%至约0.9%的范围内; 第一环形段的相对指数在约-0.2%至约0.15%的范围内; 第二环形段的相对指数在约0.1%至约0.4%的范围内; 中心段的外半径在约3.1微米和约5.0微米的范围内; 并且第三环形段的中心半径在约6.18μm和约7.7μm的范围内。

    LOW ATTENUATION OPTICAL FIBER
    110.
    发明申请
    LOW ATTENUATION OPTICAL FIBER 审中-公开
    低衰减光纤

    公开(公告)号:WO2016089733A3

    公开(公告)日:2016-07-28

    申请号:PCT/US2015062913

    申请日:2015-11-30

    Applicant: CORNING INC

    Abstract: An optical fiber with low attenuation is provided. The fiber is produced under conditions that reduce fictive temperature. Processing includes maintaining the fiber at temperatures at or near the glass transition temperature (Tg) for an extended period of time. For silica-based fibers, the preferred temperatures are temperatures between 1000 °C and 1700 °C. The extended residence times are achieved in a continuous fiber manufacturing process by increasing the path length of the fiber through a processing region maintained at temperatures between 1000 °C and 1700 °C. The increased path length is achieved by including one or more fluid bearing devices in the processing region. The extended residence time in the processing region allows the structure of the glass fiber to relax more completely and to more closely approach the equilibrium state. The more relaxed glass structure leads to a lower fictive temperature and provides fibers with lower attenuation.

    Abstract translation: 提供具有低衰减的光纤。 纤维在减少假想温度的条件下生产。 处理包括将纤维保持在玻璃化转变温度(Tg)或接近玻璃化转变温度(Tg)的温度下延长一段时间。 对于二氧化硅基纤维,优选温度为1000℃至1700℃之间的温度。 延长的停留时间在连续纤维制造过程中通过将纤维的路径长度增加到保持在1000℃和1700℃之间的温度的处理区域来实现。 通过在处理区域中包括一个或多个流体支承装置来实现增加的路径长度。 在处理区域中延长的停留时间允许玻璃纤维的结构更完全地松弛并更接近平衡状态。 更轻松的玻璃结构导致较低的假想温度,并提供较低衰减的光纤。

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