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137 条记录 (耗时 0.044 秒)

    High-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses
    51.
    发明申请
    High-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses 有权
    具有减少弯曲损耗的高带宽多模光纤

    公开(公告)号：US20110135263A1

    公开(公告)日：2011-06-09

    申请号：US12959866

    申请日：2010-12-03

    申请人： Denis Molin ,  Marianne Bigot-Astruc ,  Pierre Sillard ,  Koen de Jongh

    发明人： Denis Molin ,  Marianne Bigot-Astruc ,  Pierre Sillard ,  Koen de Jongh

    IPC分类号： G02B6/028 ,  G02B6/036

    CPC分类号： G02B6/0288 ,  G02B6/0365 ,  G02B6/03666

    摘要： The present invention embraces a multimode optical fiber that includes a central core having an alpha-index profile, an inner cladding, a depressed trench, and an outer cladding (e.g., an outer optical cladding). Typically, the central core's alpha-index profile has a minimum refractive index at the central core's radius that corresponds to a refractive index difference with respect to the outer cladding. The optical fiber achieves reduced bending losses and a high bandwidth with a reduced cladding effect for high-data-rate applications.

    摘要翻译： 本发明包括一种多模光纤，其包括具有α-折射率分布的中心芯，内包层，凹陷沟槽和外包层（例如，外光学包层）。 通常，中心芯的α折射率分布在中心纤芯的半径处具有对应于相对于外包层的折射率差的最小折射率。 光纤在高数据速率应用中实现了减少的弯曲损耗和高带宽，降低了包层效应。

    Bend-insensitive single-mode optical fiber
    52.
    发明授权
    Bend-insensitive single-mode optical fiber 有权
    弯曲不灵敏单模光纤

    公开(公告)号：US07889960B2

    公开(公告)日：2011-02-15

    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 1310 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 1260 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小于中心纤芯的折射率差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。 该光纤在1310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纳米的波长处，光纤对于曲率半径具有小于0.15dB /转的弯曲损耗 5毫米，电缆截止波长小于或等于1260纳米。

    Microbend-Resistant Optical Fiber
    53.
    发明申请
    Microbend-Resistant Optical Fiber 有权
    防微光纤

    公开(公告)号：US20100290781A1

    公开(公告)日：2010-11-18

    申请号：US12774845

    申请日：2010-05-06

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

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

    IPC分类号： G02B6/036 ,  G02B6/44 ,  H04J14/00

    CPC分类号： C03C25/106 ,  C03C13/046 ,  C03C25/105 ,  G02B6/0228 ,  G02B6/02395 ,  G02B6/0365 ,  G02B6/03688

    摘要： Disclosed is an improved, single-mode optical fiber possessing a novel coating system. When combined with a bend-insensitive glass fiber, the novel coating system according to the present invention yields an optical fiber having exceptionally low losses.The coating system features (i) a softer primary coating with excellent low-temperature characteristics to protect against microbending in any environment and in the toughest physical situations and, optionally, (ii) a colored secondary coating possessing enhanced color strength and vividness. The secondary coating provides improved ribbon characteristics for structures that are robust, yet easily entered (i.e., separated and stripped).The optional dual coating is specifically balanced for superior heat stripping in fiber ribbons, with virtually no residue left behind on the glass. This facilitates fast splicing and terminations. The improved coating system provides optical fibers that offer significant advantages for deployment in most, if not all, fiber-to-the-premises (FTTx) systems.

    摘要翻译： 公开了一种改进的具有新型涂层系统的单模光纤。 当与弯曲不敏感的玻璃纤维组合时，根据本发明的新型涂层系统产生具有异常低损耗的光纤。 涂层系统的特征是（i）具有优异的低温特性的较软的初级涂层，以防止任何环境和最强的物理情况下的微弯曲，以及（ii）具有增强的颜色强度和鲜明度的着色的二次涂层。 二次涂层为坚固但容易进入（即，分离和剥离）的结构提供改进的带状特征。 可选的双涂层是特别平衡的，用于在纤维带中实现优异的热剥离，玻璃上几乎没有留下残留物。 这有助于快速接合和终止。 改进的涂层系统提供光纤，为大多数（如果不是全部）光纤到户（FTTx）系统中的部署提供显着的优点。

    Single-Mode Optical Fiber
    60.
    发明申请
    Single-Mode Optical Fiber 有权
    单模光纤

    公开(公告)号：US20120315006A1

    公开(公告)日：2012-12-13

    申请号：US13491953

    申请日：2012-06-08

    申请人： Marianne Bigot-Astruc ,  Pierre Sillard

    发明人： Marianne Bigot-Astruc ,  Pierre Sillard

    IPC分类号： G02B6/036

    CPC分类号： G02B6/03666 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2203/23 ,  G02B6/03616 ,  G02B6/03661 ,  G02B6/03688

    摘要： A single-mode optical fiber includes a central core surrounded by an outer optical cladding. The optical fiber includes an inner depressed cladding, a ring, and an outer depressed cladding positioned between the central core and the outer optical cladding. The central core typically has a refractive-index difference (Dn1) with the outer optical cladding of between about −0.5×10−3 and 0.5×10−3. The ring typically has an inner radius (rring1) of between about 21 microns and 35 microns and a refractive-index difference with the outer optical cladding (Dnring) of between about −0.5×10−3 and 0.5×10−3. The outer depressed cladding typically has a volume (Vout) of between about 15 μm2 and 30 μm2. The ratio of the volume of the central core over the width of the ring (Vcore/wring) is typically between about 0.12 micron and 0.2 micron.

    摘要翻译： 单模光纤包括由外部光学包层围绕的中心芯。 光纤包括位于中心芯和外部光学包层之间的内部凹陷包层，环和外部凹陷包层。 中心芯通常具有折射率差（Dn1），外部光学包层在约-0.5×10-3和0.5×10-3之间。 该环通常具有介于约21微米至35微米之间的内半径（rring1）和与外光学包层（Dnring）的折射率差在约-0.5×10-3至0.5×10-3之间。 外部凹陷包层通常具有在约15μm2和30μm2之间的体积（Vout）。 中心纤芯在环宽度上的体积比（Vcore /拧）通常在约0.12微米至0.2微米之间。