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    Methods and systems for predicting an optical fiber performance parameter
    1.
    发明授权
    Methods and systems for predicting an optical fiber performance parameter 有权
    用于预测光纤性能参数的方法和系统

    公开(公告)号：US08649642B2

    公开(公告)日：2014-02-11

    申请号：US13306427

    申请日：2011-11-29

    申请人： John A. Fee

    发明人： John A. Fee

    IPC分类号： G02B6/26 ,  G02B6/42

    CPC分类号： G06F17/18 ,  C03B2203/36 ,  G01M11/336 ,  G02B6/02285 ,  G06F15/00

    摘要： A method for predicting an optical fiber performance parameter includes measuring N values for the optical fiber performance parameter at N stages during manufacture or installation of a first optical fiber, where N is an integer. A first set of correlation values is generated representing shifts in the measured optical fiber performance parameter values at the N stages. An installed value of the optical fiber performance parameter is estimated for a second optical fiber based on the first set of generated correlation values and at least one measured optical fiber performance parameter value associated with the second optical fiber.

    摘要翻译： 一种用于预测光纤性能参数的方法包括在制造或安装第一光纤期间在N级测量N个光纤性能参数的N值，其中N是整数。 产生第一组相关值，表示在N级测量的光纤性能参数值的偏移。 基于第一组生成的相关值和与第二光纤相关联的至少一个测量的光纤性能参数值，针对第二光纤估计光纤性能参数的安装值。

    Method and apparatus for producing optical fiber
    2.
    发明授权
    Method and apparatus for producing optical fiber 有权
    光纤制造方法及装置

    公开(公告)号：US08443581B2

    公开(公告)日：2013-05-21

    申请号：US13125014

    申请日：2009-10-19

    申请人： Naruki Koshimizu ,  Yuji Abe ,  Toshimi Habasaki ,  Tetsuya Hayashi

    发明人： Naruki Koshimizu ,  Yuji Abe ,  Toshimi Habasaki ,  Tetsuya Hayashi

    IPC分类号： D02G3/22

    CPC分类号： G02B6/02285 ,  B65H51/10 ,  B65H59/385 ,  B65H59/40 ,  B65H2701/32

    摘要： An optical fiber producing method and apparatus for producing an optical fiber in which, in a path where an optical fiber is reeled out from a supply bobbin, taken up by take-up means, and wound by a winding bobbin, twists are alternately imparted to the optical fiber by a twist imparting portion. A zone where a high tension load is allowed to be applied to the optical fiber without affecting winding tension of the winding bobbin is disposed, a twist is imparted in the zone, and, when tension immediately before the twist imparting portion is indicated by T (g), a free path length is indicated by L, a twisting amount is indicated by R (turns/m), and a and b are constants, the tension and free path length by which the twisting amount R approximated by “R=a×T×Lb” is made “2” or more are set.

    摘要翻译： 一种光纤的制造方法及其制造方法，其特征在于，在将光纤从供给线轴卷出的路径中，由卷取机构卷绕并卷绕在卷取筒管上， 光纤通过扭曲赋予部分。 在不影响卷绕筒管的卷绕张力的情况下，设置能够对光纤施加高张力负荷的区域，在该区域内施加扭曲，并且在扭曲赋予部分之前的张力被T（ g），自由路径长度用L表示，扭转量由R（匝数/ m）表示，a和b是常数，由R = a近似的扭转量R的张力和自由路径长度 ×T×Lb“为”2“以上。

    OPTICAL FIBER AND METHOD AND APPARATUS FOR MANUFACTURING OPTICAL FIBER
    3.
    发明申请
    OPTICAL FIBER AND METHOD AND APPARATUS FOR MANUFACTURING OPTICAL FIBER 审中-公开
    光纤和制造光纤的方法和装置

    公开(公告)号：US20120328254A1

    公开(公告)日：2012-12-27

    申请号：US13481226

    申请日：2012-05-25

    申请人： Kenji OKADA

    发明人： Kenji OKADA

    IPC分类号： G02B6/02 ,  B05C11/00

    CPC分类号： B05C5/0241 ,  C03B37/02745 ,  C03B37/032 ,  C03B2203/19 ,  C03B2203/20 ,  C03B2203/36 ,  C03B2205/06 ,  C03C25/106 ,  G02B6/02285

    摘要： An optical fiber including an optical fiber wire is provided. The optical fiber wire has a bare optical fiber portion, to which first elastic torsion is applied, and a coating layer, which coats the bare optical fiber portion and which is formed of curable resin and generates elastic repulsion against resilience occurring in the bare optical fiber portion so that the first elastic torsion applied to the bare optical fiber portion is held. Second elastic torsion is applied to the entire optical fiber configured to include the bare optical fiber portion and the coating layer.

    摘要翻译： 提供了包括光纤线的光纤。 光纤线具有施加第一弹性扭曲的裸光纤部分和涂覆裸光纤部分并且由可固化树脂形成的涂层，并且产生弹性斥力以抵抗在裸光纤中发生的弹性 使得保持施加到裸光纤部分的第一弹性扭转。 对构成为包括裸光纤部分和涂层的整个光纤施加第二弹性扭转。

    Optical fiber having a low polarization mode dispersion and process and apparatus for producing it
    6.
    发明授权
    Optical fiber having a low polarization mode dispersion and process and apparatus for producing it 失效
    具有低偏振模色散的光纤及其制造方法和装置

    公开(公告)号：US07409126B2

    公开(公告)日：2008-08-05

    申请号：US10528836

    申请日：2003-09-22

    申请人： Giacomo Stefano Roba ,  Davide Sarchi ,  Martino Travagnin ,  Alexis Debut

    发明人： Giacomo Stefano Roba ,  Davide Sarchi ,  Martino Travagnin ,  Alexis Debut

    IPC分类号： G02B6/44

    CPC分类号： B65H49/02 ,  C03B37/02745 ,  C03B37/032 ,  C03B37/12 ,  C03B2203/19 ,  C03B2203/20 ,  C03B2203/36 ,  C03B2205/06 ,  G02B6/02285

    摘要： An apparatus for producing a low-PMD optical fiber having a furnace for melting a lower portion of an optical preform; a traction device for pulling an optical fiber from the lower portion of an optical preform; a spinning device for imparting a substantially constant and unidirectional spin to the optical fiber as it is pulled, which causes the fiber to undergo an elastic torsion; a winding device for winding the optical fiber onto a reel; and a twisting device for imparting to the spun optical fiber a unidirectional twist in a direction opposite the elastic torsion, so as to control the residual twist in the optical fiber. A process for producing the fiber, an optical fiber and a cable are also provided.

    摘要翻译： 一种用于生产具有用于熔化光学预型件的下部的炉的低PMD光纤的设备; 用于从光学预型件的下部拉动光纤的牵引装置; 旋转装置，用于在被拉动时使光纤基本上恒定且单向旋转，这导致纤维经受弹性扭转; 用于将光纤缠绕到卷轴上的卷绕装置; 以及用于使纺丝光纤沿与弹性扭转相反的方向赋予单向捻度的扭转装置，以便控制光纤中的残余扭曲。 还提供了用于生产纤维，光纤和电缆的方法。

    METHODS AND SYSTEMS FOR CONTROLLING FIBER POLARIZATION MODE DISPERSION (PMD)
    7.
    发明申请
    METHODS AND SYSTEMS FOR CONTROLLING FIBER POLARIZATION MODE DISPERSION (PMD) 有权
    用于控制光纤偏振模式分布（PMD）的方法和系统

    公开(公告)号：US20080151232A1

    公开(公告)日：2008-06-26

    申请号：US12032368

    申请日：2008-02-15

    申请人： John A. FEE

    发明人： John A. FEE

    IPC分类号： G01N21/00

    CPC分类号： G06F17/18 ,  C03B2203/36 ,  G01M11/336 ,  G02B6/02285 ,  G06F15/00

    摘要： A method is provided for predicting an installed performance parameter of an optical fiber cable. The method includes obtaining a measurement indicative of a value of the performance parameter at a first moment in time. A measurement indicative of a value of the performance parameter at a second moment in time may then be obtained. A first correlation may then be determined between the measurement at the first moment in time and the measurement at the second moment in time. A value of the performance parameter at the second moment in time may then be estimated based upon the measurement at the first moment in time in combination with the first correlation, the first correlation being based upon observations of a manner in which the performance parameter varies over time for at least a second optical fiber.

    摘要翻译： 提供了一种用于预测光缆的安装性能参数的方法。 该方法包括在第一时刻获得表示性能参数的值的测量值。 然后可以获得指示在第二时刻的性能参数的值的测量。 然后可以在第一时刻的测量和在第二时刻的测量之间确定第一相关性。 然后可以基于在第一时刻的测量结合第一相关性来估计在时间上的第二时刻的性能参数的值，第一相关是基于对性能参数变化的方式的观察 至少第二光纤的时间。

    Light source apparatus
    10.
    发明申请
    Light source apparatus 有权
    光源装置

    公开(公告)号：US20060245703A1

    公开(公告)日：2006-11-02

    申请号：US11394204

    申请日：2006-03-31

    申请人： Toshiaki Okuno

    发明人： Toshiaki Okuno

    IPC分类号： G02B6/00

    CPC分类号： H01S3/0057 ,  G02B6/02028 ,  G02B6/02285 ,  G02B6/03627 ,  G02B6/03644 ,  G02B6/03666 ,  G02B6/29377 ,  H01S3/06725

    摘要： The present invention relates to a light source apparatus having a structure for stably supplying broadband pulsed light having a wavelength spectrum with an excellent flatness over a wide band. The light source apparatus employs, as a seed light source, a short-pulsed light source having such an excellent output pulse characteristic that the frequency bandwidth extending until the output pulse drops by 10 dB or 20 dB from a peak is 5 THz or more. The light source apparatus also includes a broadband light producing fiber having an optical characteristic suitable for combining with the short-pulsed light source. The broadband light producing fiber inputs pulsed light from the pulsed light source, and produces the broadband pulsed light by utilizing a nonlinear optical phenomenon. This structure yields broadband pulsed light having such a wavelength spectrum that a region whose power fluctuation is suppressed to 6 dB or less extends over 100 nm or more.

    摘要翻译： 本发明涉及一种光源装置，其具有稳定地提供宽带脉冲光的结构，该宽带脉冲光具有在宽带上具有优异的平坦度的波长谱。 光源装置使用具有如此优异的输出脉冲特性的短脉冲光源，使得直到输出脉冲从峰值下降10dB或20dB的频带宽度为5THz以上。 光源装置还包括具有适于与短脉冲光源组合的光学特性的宽带光产生光纤。 宽带光纤产生光纤从脉冲光源输入脉冲光，并利用非线性光学现象产生宽带脉冲光。 这种结构产生具有这样的波长频谱的宽带脉冲光，使得功率波动抑制在6dB以下的区域延伸超过100nm以上。