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    Chromatic dispersion compensation optical fiber
    7.
    发明授权
    Chromatic dispersion compensation optical fiber 失效
    色散补偿光纤

    公开(公告)号：US07006743B2

    公开(公告)日：2006-02-28

    申请号：US10673454

    申请日：2003-09-30

    申请人： Florent Beaumont ,  Pierre Sillard ,  Ludovic Fleury ,  Maxime Gorlier ,  Louis-Anne de Montmorillon ,  Pascale Nouchi

    发明人： Florent Beaumont ,  Pierre Sillard ,  Ludovic Fleury ,  Maxime Gorlier ,  Louis-Anne de Montmorillon ,  Pascale Nouchi

    IPC分类号： G02B6/02 ,  G02B6/16 ,  G02B6/22

    CPC分类号： G02B6/0281 ,  G02B6/02004 ,  G02B6/02261 ,  G02B6/0228 ,  G02B6/03627 ,  G02B6/03644 ,  G02B6/03666

    摘要： The invention relates to a multiband chromatic dispersion compensation optical fiber comprising successively, from the center toward the periphery, a central slice whose maximum index is higher than the index of the cladding, a buried slice whose minimum index is lower than the index of the cladding, and an annular slice whose maximum index is higher than the index of the cladding and lower than the maximum index of the central slice, a cladding of constant index, and having, on the one hand, at the wavelength of 1550 nm, firstly a chromatic dispersion of less than −8 ps/nm.km, secondly a chromatic dispersion to dispersion slope ratio whose absolute value is greater than 750 nm, and thirdly a mode diameter greater than 5 μm, and on the other hand, at the wavelength of 1625 nm, bending losses for a radius of 10 mm that are less than 400 dB/m.

    摘要翻译： 本发明涉及一种多波段色散补偿光纤，包括从中心向外围依次包括最大折射率高于包层的折射率的中心切片，其最小折射率低于包层的折射率的掩埋切片 ，以及最大折射率高于包层的折射率并低于中心片的最大折射率的环形片，恒定折射率的包层，并且一方面在1550nm的波长处，首先是 色散小于-8ps / nm.km，其次为绝对值大于750nm的色散斜率比的色散，第三种模式直径大于5um，另一方面，波长为 1625 nm，半径为10mm的弯曲损耗小于400 dB / m。

    Fiber with continuously changing chromatic dispersion
    9.
    发明授权
    Fiber with continuously changing chromatic dispersion 失效
    光纤具有不断变化的色散

    公开(公告)号：US06813426B2

    公开(公告)日：2004-11-02

    申请号：US10208779

    申请日：2002-08-01

    申请人： Ludovic Fleury ,  Louis-Anne de Montmorillon ,  Pierre Sillard ,  Pascale Nouchi

    发明人： Ludovic Fleury ,  Louis-Anne de Montmorillon ,  Pierre Sillard ,  Pascale Nouchi

    IPC分类号： G02B602

    CPC分类号： G02B6/02247 ,  G02B6/02242 ,  G02B6/02261 ,  G02B6/02266 ,  G02B6/03644 ,  H04B10/25253

    摘要： The invention provides a fiber with continuously changing chromatic dispersion; it limits the quantity of dispersion-compensating fiber needed in a transmission system to compensate the cumulative chromatic dispersion in the line fiber. The fiber has a higher chromatic dispersion at a first end than at the other end, referred to as the second end. The chromatic dispersion varies along the fiber, decreasing over at least a portion of the fiber. At the first end the chromatic dispersion can be of the order of the dispersion of a conventional line fiber, i.e. close to 8 ps/(nm.km). At the second end the chromatic dispersion can have a value of the order of 4 ps/(nm.km). The fiber is used as the line fiber in a transmission system at the beginning of a section between two repeaters. The chromatic dispersion in the vicinity of the first end limits non-linear effects at the beginning of the section; the decrease of the chromatic dispersion in the fiber ensures that at its second end the fiber can be connected to a fiber having lower chromatic dispersion. The fiber can be produced with an index profile in the shape of a rectangle and a ring by varying only the indices, and not the radii.

    摘要翻译： 本发明提供一种具有不断变化的色散的光纤; 它限制了传输系统中所需的色散补偿光纤的数量，以补偿线路光纤中的累积色散。 光纤在第一端具有比在另一端更高的色散，称为第二端。 色散沿着纤维变化，在纤维的至少一部分上减小。 在第一端，色散可以是常规线光纤的色散的顺序，即接近8ps /（nm·km）。 在第二端，色散可以具有4ps /（nm·km）量级的值。 光纤在两个中继器之间的部分开始处用作传输系统中的线路光纤。 第一端附近的色散限制了该段开始时的非线性效应; 纤维中的色散的降低确保了在其第二端，光纤可以连接到具有较低色散的光纤。 纤维可以通过仅改变指数而不是半径而以矩形和环的形状产生折射率分布。