Solid type polarization maintaining fiber and apparatus
    6.
    发明申请
    Solid type polarization maintaining fiber and apparatus 失效
    固体型保偏纤维及其设备

    公开(公告)号:US20060018612A1

    公开(公告)日:2006-01-26

    申请号:US11239788

    申请日:2005-09-29

    IPC分类号: G02B6/02

    摘要: Disclosed is an optical fiber (20) having a centermost laterally-elongated core (30) having a short dimension (a), a long dimension (b) and a first refractive index (n1), a moat (40) surrounding the central laterally-elongated core, the moat (40) having a second refractive index (n2), an outer dimension (c) and an outer dimension (d), and a cladding (50) surrounding the moat (40), the cladding (50) having a third refractive index (n3), wherein n1>n3>n2, a ratio of b/a is between 1.5 and 5.0, and a ratio of d/a is between 2.0 and 7.0. The fiber exhibits polarization maintaining properties in a PMB situated below (i.e., at shorter wavelength than SPB), such that beat length normalized to 1550 nm wavelength is preferably less than 10 mm. The fiber (20) may be coupled to optical components in apparatus where single polarization or polarization maintaining properties are desired.

    摘要翻译: 公开了一种光纤(20),其具有具有短尺寸(a),长尺寸(b)和第一折射率(n <1> 1)的中心横向细长芯部(30), 围绕中央横向细长的芯的护城河(40),护城河(40)具有第二折射率(n 2/2),外部尺寸(c)和外部尺寸(d),以及 围绕护城河(40)的包层(50),包层(50)具有第三折射率(n 3/3),其中n 1 n 3 < / SUB >> n 2,b / a的比例在1.5和5.0之间,d / a的比率在2.0和7.0之间。 纤维在位于低于(即在比SPB更短的波长)的PMB中表现出极化保持性能,使得标准化为1550nm波长的拍子长度优选小于10mm。 光纤(20)可以耦合到需要单极化或偏振保持特性的装置中的光学部件。

    Dispersion correction fiber, transmission system and method of operating same
    7.
    发明申请
    Dispersion correction fiber, transmission system and method of operating same 审中-公开
    色散校正光纤,传输系统及其操作方法

    公开(公告)号:US20050185905A1

    公开(公告)日:2005-08-25

    申请号:US11057313

    申请日:2005-02-11

    摘要: A dispersion correction optical fiber includes a segmented core having a central core segment, a moat segment and, preferably, a ring segment. The refractive index profile is selected to provide a total dispersion minimum which is located within an operating wavelength band of the fiber. Most preferably, the dispersion value at the minimum is more negative than −400 ps/nm/km and greater than −1200 ps/nm/km at 1550 nm. Optical transmission systems including the present invention dispersion correction optical fiber optically coupled to various transmission fibers and dispersion compensating fibers are also disclosed, as is a method of operating the dispersion correction fiber wherein the minimum is located within the desired operating wavelength band.

    摘要翻译: 色散校正光纤包括具有中心核心段,护环段和优选环形段的分段核心。 选择折射率分布以提供位于光纤的工作波长带内的总色散最小值。 最优选地,在1550nm处,最小的色散值比-400ps / nm / km更大,大于-1200ps / nm / km。 还公开了包括光学耦合到各种传输光纤和色散补偿光纤的本发明的色散校正光纤的光传输系统,以及操作色散校正光纤的方法,其中最小值位于期望的工作波长带内。

    High numerical aperture optical fiber
    9.
    发明申请
    High numerical aperture optical fiber 有权
    高数值孔径光纤

    公开(公告)号:US20070104436A1

    公开(公告)日:2007-05-10

    申请号:US11255401

    申请日:2005-10-20

    IPC分类号: G02B6/036

    摘要: An optical fiber, comprising: a core with a first refractive index (n1); a silica based outer cladding surrounding the core, the outer cladding having a refractive index (n), such that the core is substantially surrounded by a gap situated between the core and the outer cladding, the gap containing at least one support structure adjacent to the outer cladding and situated between the outer cladding and the core, wherein the support structure is either hollow or gas filed and is not connected to any other support structure situated within the gap.

    摘要翻译: 一种光纤,包括:具有第一折射率(n <1> 1)的芯; 围绕所述芯的基于二氧化硅的外包层,所述外包层具有折射率(n),使得所述芯基本上被位于所述芯和所述外包层之间的间隙包围,所述间隙包含与所述芯和所述外包层相邻的至少一个支撑结构 外包层并且位于外包层和芯之间,其中支撑结构是中空的或气田的,并且不连接到位于间隙内的任何其它支撑结构。