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    Single-Mode Optical Fiber Having Reduced Bending Losses
    1.
    发明申请
    Single-Mode Optical Fiber Having Reduced Bending Losses 有权
    减少弯曲损耗的单模光纤

    公开(公告)号：US20120183268A1

    公开(公告)日：2012-07-19

    申请号：US13429825

    申请日：2012-03-26

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

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

    IPC分类号： G02B6/028

    CPC分类号： G02B6/0365 ,  G02B6/02266 ,  G02B6/02395

    摘要： A single-mode optical fiber includes a central core, an intermediate cladding, a depressed trench, and an external optical cladding. The central core has a radius r1 and a positive refractive index difference Δn1 with the optical cladding. The intermediate cladding has a radius r2 and a refractive index difference Δn2 with the optical cladding, wherein Δn2 is less than Δn1. The depressed trench has a radius r3 and a negative index difference Δn3 with the optical cladding. At a wavelength of 1310 nanometers, the optical fiber has a mode field diameter (MFD) between 8.6 microns and 9.5 microns and, at a wavelength of 1550 nanometers, the optical fiber has bending losses less than about 0.25×10−3 dB/turn for a radius of curvature of 15 millimeters. At a wavelength of 1260 nanometers, attenuation of the LP11 mode to 19.3 dB is achieved over less than 90 meters of fiber.

    摘要翻译： 单模光纤包括中心芯，中间包层，凹陷沟槽和外部光学包层。 中心纤芯与光学包层具有半径r1和正折射率差Dgr; n1。 中间包层与光学包层具有半径r2和折射率差Dgr; n2，其中＆Dgr; n2小于＆Dgr; n1。 凹陷沟槽具有与光学包层的半径r3和负折射率差Dgr; n3。 在1310纳米的波长处，光纤具有在8.6微米和9.5微米之间的模场直径（MFD），并且在1550纳米的波长处，光纤具有小于约0.25×10 -3 dB /转的弯曲损耗 半径为15毫米。 在1260纳米的波长下，在不到90米的光纤上，LP11模式的衰减达到19.3 dB。

    Chromatic dispersion compensating and chromatic dispersion slope compensating fiber
    2.
    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。

    Chromatic dispersion compensating fiber
    3.
    发明授权
    Chromatic dispersion compensating fiber 有权
    色散补偿光纤

    公开(公告)号：US07356234B2

    公开(公告)日：2008-04-08

    申请号：US11743365

    申请日：2007-05-02

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

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

    IPC分类号： G02B6/02

    CPC分类号： G02B6/0365 ,  G02B6/02014 ,  G02B6/02019 ,  G02B6/02266

    摘要： Disclosed is a chromatic dispersion compensating optical fiber comprising a central core, an intermediate cladding having a width (r2−r1) of 2.0 microns or greater, and a depressed inner cladding having a refractive index difference Dn3 with the external optical cladding of −3.0×10−3 or lower. At a wavelength of 1550 nm, the optical fiber exhibits a positive chromatic dispersion of 21 ps/(nm·km) or higher and a ratio of mode radius to intermediate cladding radius of (W02/r2) of 0.7 or less. The present optical fiber has a good figure of merit value and limited bending and microbending losses. The optical fiber can be rolled up in a housing of reduced size in a chromatic dispersion compensating optical module having limited insertion losses and reduced polarization mode dispersion.

    摘要翻译： 公开了一种色散补偿光纤，其包括中心纤芯，具有2.0微米或更大的宽度（r 2 -2 -r 1/2）的中间包层和凹陷内部 具有-3.0×10 -3以下的外部光学包层的折射率差Dn 3＆lt; 3＆lt; 3＆lt; 3＆gt;的包层。 在1550nm的波长下，光纤的正色散为21ps /（nm·km）以上，模式半径与中间包层半径的比例为（W 002 / SUB> 2 ）为0.7以下。 本光纤具有良好的品质因数值和有限的弯曲和微弯损耗。 光纤可以在具有有限的插入损耗和减小的偏振模式色散的色散补偿光学模块中在尺寸减小的壳体中卷起。

    Bend-Insensitive Single-Mode Optical Fiber
    8.
    发明申请
    Bend-Insensitive Single-Mode Optical Fiber 有权
    弯曲不敏感单模光纤

    公开(公告)号：US20090279836A1

    公开(公告)日：2009-11-12

    申请号：US12436484

    申请日：2009-05-06

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

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

    IPC分类号： G02B6/036

    CPC分类号： G02B6/0365 ,  G02B6/02266 ,  G02B6/02395

    摘要： A single-mode optical fiber includes a central core, an intermediate cladding, a depressed trench, and an external optical cladding. The central core has a radius r1 and a positive refractive index difference Δn1 with the optical cladding. The intermediate cladding has a radius r2 and a refractive index difference Δn2 with the optical cladding, wherein Δn2 is less than the central core's refractive index difference Δn1. The depressed trench has a radius r3 and a negative index difference Δn3 with the optical cladding. The optical fiber has a nominal mode field diameter (MFD) between 8.6 microns and 9.5 microns at a wavelength of nanometers, and at a wavelength of 1550 nanometers, the optical fiber has bending losses less than 0.15 dB/turn for a radius of curvature of 5 millimeters and cable cut-off wavelengths of less than or equal to nanometers.

    摘要翻译： 单模光纤包括中心芯，中间包层，凹陷沟槽和外部光学包层。 中心芯具有与光学包层的半径r1和正折射率差Deltan1。 中间包层具有与光学包层的半径r2和折射率差Deltan2，其中Deltan2小于中心纤芯的折射率差Deltan1。 凹陷沟槽具有与光学包层的半径r3和负折射率差Deltan3。 该光纤在纳米的波长处具有在8.6微米和9.5微米之间的标称模场直径（MFD），并且在1550纳米的波长下，光纤的弯曲损耗小于0.15dB / 5毫米，电缆截止波长小于或等于纳米。

    Dispersion-Shifted Optical Fiber
    9.
    发明申请
    Dispersion-Shifted Optical Fiber 有权
    分散光纤

    公开(公告)号：US20090252469A1

    公开(公告)日：2009-10-08

    申请号：US12418523

    申请日：2009-04-03

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

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

    IPC分类号： G02B6/036

    CPC分类号： G02B6/03661 ,  G02B6/02014 ,  G02B6/02271

    摘要： A dispersion-shifted optical fiber (NZDSF) includes a central core (r1, Dn1), an inner cladding having at least three zones with a first intermediate cladding zone (r2, Dn2), a second ring zone (r3, Dn3) and a third buried trench zone (Wtr, Dnt). The buried trench zone has an index difference (Dnt) with the optical cladding between −5·10−3 and −15·10−3 and has a width (Wtr) between 2.5 μm and 5.5 μm. The present optical fiber, at a wavelength of 1550 nm, has reduced Rayleigh scattering losses of less than 0.164 dB/km, with limited bending losses.

    摘要翻译： 色散位移光纤（NZDSF）包括中心芯（r1，Dn1），具有至少三个带有第一中间包层区（r2，Dn2），第二环带（r3，Dn3）和 第三埋沟区（Wtr，Dnt）。 掩埋沟槽区具有在-5.10-3和-15.10-3之间的光学包层的折射率差（Dnt），并且宽度（Wtr）在2.5μm和5.5μm之间。 本发明的光纤在1550nm的波长下，具有小于0.164dB / km的瑞利散射损耗降低，弯曲损耗受到限制。