High SBS threshold optical fiber with fluorine dopant
    51.
    发明申请
    High SBS threshold optical fiber with fluorine dopant 失效
    具有氟掺杂剂的高SBS阈值光纤

    公开(公告)号:US20060285809A1

    公开(公告)日:2006-12-21

    申请号:US11450785

    申请日:2006-06-08

    IPC分类号: G02B6/02

    摘要: The optical fiber comprises: (a) a core having a refractive index profile and a centerline; and (b) a cladding layer surrounding and directly adjacent the core; wherein core includes updoping material and is doped with F in at least one region of the core, such that either: (a) the average longitudinal acoustic wave velocity within the core is within 0.05% of the longitudinal acoustic wave velocity within the cladding; or (b) the longitudinal acoustic wave velocity at one region of the core is different from the longitudinal velocity at another region of the core by at least 0.2%.

    摘要翻译: 光纤包括:(a)具有折射率分布和中心线的芯; 和(b)围绕并直接邻近所述芯的包层; 其中芯包括更新材料并且在芯的至少一个区域中掺杂有F,使得:(a)芯内的平均纵向声波速度在包层内的纵向声波速度的0.05%以内; 或(b)芯的一个区域处的纵向声波速度不同于芯的另一区域处的纵向速度至少0.2%。

    Method of imparting twist to optical fiber
    52.
    发明申请
    Method of imparting twist to optical fiber 失效
    赋予光纤扭转的方法

    公开(公告)号:US20060133751A1

    公开(公告)日:2006-06-22

    申请号:US11015509

    申请日:2004-12-16

    IPC分类号: G02B6/02

    摘要: A method for producing low-PMD fiber, in which a glass fiber is drawn from an optical fiber perform by a tractor which pulls such optical fiber from said perform; subsequent to said tractor pulling the fiber is twisted about its axis to increase the magnitude of twist which is imparted to said fiber. The fiber is then wound onto a fiber storage spool such that at least a portion of the twist imparted to said optical fiber is retained while said fiber is wound on said spool.

    摘要翻译: 一种生产低PMD纤维的方法,其中玻璃纤维从由所述表面拉动这种光纤的拖拉机执行的光纤中拉出; 在所述拖拉机拉动之后,纤维围绕其轴线扭曲以增加赋予所述纤维的捻度的大小。 然后将纤维卷绕到纤维储存卷轴上,使得当所述纤维缠绕在所述卷轴上时,赋予所述光纤的扭曲的至少一部分被保持。

    Method for producing optical fiber having controlled perturbations
    54.
    发明授权
    Method for producing optical fiber having controlled perturbations 有权
    具有受控扰动的光纤的制造方法

    公开(公告)号:US09290406B2

    公开(公告)日:2016-03-22

    申请号:US13587091

    申请日:2012-08-16

    IPC分类号: C03B37/025 C03B37/027

    摘要: A method for producing an optical fiber is provided. The method includes the steps of drawing an optical fiber from a heated glass source in a furnace and introducing index perturbations to the optical fiber via a plurality of perturbation sources arranged at a plurality of different azimuthal locations. The index perturbations are introduced synchronously at different locations along the axial length of the fiber by the plurality of perturbation sources in a generally helical pattern on the outside surface of the fiber in one embodiment. According to another embodiment, the index perturbations are introduced by the plurality of perturbation sources at different frequencies.

    摘要翻译: 提供一种光纤的制造方法。 该方法包括以下步骤:在炉中从加热的玻璃源中拉出光纤,并且通过布置在多个不同方位位置处的多个扰动源将折射率扰动引入光纤。 在一个实施例中,通过多个扰动源以纤维的外表面上的大致螺旋图案沿着纤维的轴向长度在不同位置同时引入折射率扰动。 根据另一实施例,索引扰动由多个扰动源以不同的频率引入。

    Method of estimating and measuring longitudinal dispersion in optical fibers
    59.
    发明授权
    Method of estimating and measuring longitudinal dispersion in optical fibers 失效
    估计和测量光纤纵向色散的方法

    公开(公告)号:US07221439B2

    公开(公告)日:2007-05-22

    申请号:US11118302

    申请日:2005-04-29

    IPC分类号: G01N21/00

    摘要: A method for measuring longitudinal variation in chromatic dispersion in an optical fiber, comprising: (i) launching into a first end and a second end of optical fiber an optical signal at a wavelength λ1 to collect backscatter power P(z) for different positions z within said optical fiber and providing measured OTDR backscatter traces; (ii) deriving from the measured OTDR backscatter traces at the single OTDR wavelength λ1 either (a) the longitudinal MFD(z) data or (b) the relative MFD data; and (iii) calculating estimated longitudinal dispersion D(z) from the longitudinal MFD(z) data or the relative MFD data, without utilizing any other wavelength data.

    摘要翻译: 一种用于测量光纤中色散的纵向变化的方法,包括:(i)向光纤的第一端和第二端发射波长为λ1的光信号以收集反向散射功率 P(z)用于所述光纤内的不同位置z,并提供测量的OTDR后向散射迹线; (ii)(a)纵向MFD(z)数据或(b)相对MFD数据在单个OTDR波长λ1下从所测量的OTDR反向散射迹线得出; 和(iii)从纵向MFD(z)数据或相对MFD数据计算估计的纵向色散D(z),而不使用任何其它波长数据。