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22 条记录 (耗时 0.029 秒)

    Single mode optical fiber with depressed trench
    9.
    发明授权
    Single mode optical fiber with depressed trench 有权
    单模光纤带凹槽

    公开(公告)号：US08488931B2

    公开(公告)日：2013-07-16

    申请号：US12902190

    申请日：2010-10-12

    申请人： Marianne Bigot-Astruc ,  Pierre Sillard ,  Louis-Anne De Montmorillon ,  Denis Molin ,  Simon Richard

    发明人： Marianne Bigot-Astruc ,  Pierre Sillard ,  Louis-Anne De Montmorillon ,  Denis Molin ,  Simon Richard

    IPC分类号： G02B6/02 ,  G02B6/00

    CPC分类号： G02B6/0365 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/23 ,  G02B6/03683 ,  G02B6/03688

    摘要： An optical fiber having a core and an outer cladding, the core including from its center outward a central core having a radius and a refractive index difference with respect to the outer cladding, and a depressed inner cladding. The depressed inner cladding includes at least a first portion having a radius and a refractive index difference with respect to the outer cladding, the first portion preferably being adjacent to the central core, and a second portion adjacent to the first portion constituting a depressed trench having a radius, and a refractive index difference with respect to the outer cladding. The first portion of the inner cladding has a refractive index below the refractive index of the outer cladding, and the depressed trench has a refractive index that is lower than the refractive index of the first portion of the depressed inner cladding. The outer radius of the depressed inner cladding of the optical fiber is between 28 μm and 40 μm, the LP01 mode leakage losses at a wavelength of 1550 nm are less than 0.01 dB/km and the cable cut-off wavelength is less than 1530 nm.

    摘要翻译： 具有芯和外包层的光纤，所述芯从其中心向外包括具有相对于外包层的半径和折射率差的中心芯和凹陷的内包层。 凹陷的内包层至少包括具有相对于外包层的半径和折射率差的第一部分，第一部分优选地邻近中心芯，以及与构成凹陷槽的第一部分相邻的第二部分， 半径和相对于外包层的折射率差。 内包层的第一部分的折射率低于外包层的折射率，并且凹槽的折射率低于凹陷的内包层的第一部分的折射率。 光纤的凹陷内包层的外半径在28μm和40μm之间，1550nm波长处的LP01模式泄漏损耗小于0.01dB / km，电缆截止波长小于1530nm 。

    Chromatic dispersion compensating and chromatic dispersion slope compensating fiber
    10.
    发明授权
    Chromatic dispersion compensating and chromatic dispersion slope compensating fiber 有权
    色散补偿和色散斜率补偿光纤

    公开(公告)号：US07428361B2

    公开(公告)日：2008-09-23

    申请号：US11422783

    申请日：2006-06-07

    申请人： Marianne Bigot-Astruc ,  Pierre Sillard ,  Louis-Anne De Montmorillon ,  Denis Molin

    发明人： Marianne Bigot-Astruc ,  Pierre Sillard ,  Louis-Anne De Montmorillon ,  Denis Molin

    IPC分类号： G02B6/036 ,  G02B6/02

    CPC分类号： G02B6/0281 ,  G02B6/02261 ,  G02B6/0228 ,  G02B6/03666

    摘要： A chromatic dispersion compensating and dispersion slope compensating optical fiber comprises a central core having an index difference Δn1 with an outer optical cladding, a first buried inner cladding having an index difference Δn2 with the outer cladding, a ring having an index difference Δn3 with the outer cladding and a second buried inner cladding having an index difference Δn4 with the outer cladding. The index difference between the first buried inner cladding and the outer cladding Δn2 is less than or equal to −13.5.10−3 and the index difference between the second buried inner cladding and the outer cladding Δn4 is less than or equal to −3.10−3. The fiber has, for a wavelength of 1550 nm, a chromatic dispersion less than or equal to −50 ps/nm/km and a ratio of the chromatic dispersion over the chromatic dispersion slope DOS less than or equal to 70 nm. The second deeply buried inner cladding allows obtaining a low DOS value whilst maintaining acceptable optical characteristics.

    摘要翻译： 色散补偿和色散斜率补偿光纤包括具有外部光学包层的折射率差Deltan <1>的中心纤芯，具有折射率差Deltan 2 之间的折射率差小于或等于-13.5.10±3°，而第二掩埋内包层 包层和外包层Deltan 4 小于或等于-3.10 -3 -3。 对于1550nm的波长，光纤具有小于或等于-50ps / nm / km的色散和色散斜率DOS之间的色散比小于或等于70nm。 第二个深埋的内包层允许获得低DOS值，同时保持可接受的光学特性。