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    Multimode optical fiber with low bending losses and reduced cladding effect
    21.
    发明授权
    Multimode optical fiber with low bending losses and reduced cladding effect 有权
    具有低弯曲损耗和降低包层效应的多模光纤

    公开(公告)号：US08406593B2

    公开(公告)日：2013-03-26

    申请号：US12959688

    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

    CPC分类号： G02B6/0288 ,  G02B6/03627 ,  G02B6/0365

    摘要： The present invention embraces an optical fiber that includes a central core having an alpha-index profile with respect to an outer cladding. The optical fiber also includes an inner cladding, a depressed trench, and an outer cladding. Typically, the alpha-index profile of the central core is interrupted at a point having a positive 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： 本发明包括一种光纤，其包括相对于外包层具有α-折射率分布的中心芯。 光纤还包括内包层，凹陷沟槽和外包层。 通常，中心芯的α折射率分布在相对于外包层具有正折射率差的点处中断。 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。

    Multimode Optical Fiber
    22.
    发明申请
    Multimode Optical Fiber 有权
    多模光纤

    公开(公告)号：US20120195561A1

    公开(公告)日：2012-08-02

    申请号：US13362395

    申请日：2012-01-31

    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

    CPC分类号： G02B6/0288

    摘要： A multimode optical fiber includes a central core having a graded-index profile with a delta value of about 1.9 percent or greater. The graded-index core profile has at least two different alpha parameter values along the core radius, namely a first value in an inner zone of the central core and a second value in an outer zone of the central core. The second alpha parameter value is typically less than the first alpha parameter value. The graded-index core profile and its first derivative are typically substantially continuous over the width of the graded-index core.

    摘要翻译： 多模光纤包括具有等级折射率分布的中心核心，Δ值为约1.9％或更大。 渐变折射率芯轮廓具有沿芯部半径的至少两个不同的α参数值，即中心纤芯的内部区域中的第一个值，以及中心纤芯的外部区域中的第二个值。 第二个Alpha参数值通常小于第一个alpha参数值。 渐变折射率芯轮廓及其一阶导数通常在渐变折射率芯的宽度上基本连续。

    Broad-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses
    24.
    发明申请
    Broad-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses 有权
    具有减少弯曲损耗的宽带宽多模光纤

    公开(公告)号：US20110217012A1

    公开(公告)日：2011-09-08

    申请号：US13037943

    申请日：2011-03-01

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

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

    IPC分类号： G02B6/036

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

    摘要： A multimode optical fiber includes a central core, an inner cladding, a buried trench, and an outer cladding (e.g., an outer optical cladding). Typically, the optical fiber's central core is a glass-based central core having an alpha-index profile (i.e., a graded-index profile), an outer radius r1, and a maximum refractive index difference Δn1 with respect to the outer cladding. The central core's alpha-index profile has a minimum refractive index at the central core's outer radius r1 that corresponds to a refractive index difference Δnend with respect to the outer cladding. The inner cladding has an outer radius r2, a width w2, and a refractive index difference Δn2 with respect to the outer cladding. The buried trench has an outer radius rext, a width w3, and a refractive index difference Δn3 with respect to the outer cladding. The multimode optical fiber typically has reduced bending losses, a high bandwidth at wavelengths of both 850 nanometers and 1300 nanometers, and a reduced cladding effect.

    摘要翻译： 多模光纤包括中心芯，内包层，埋入沟槽和外包层（例如，外光学包层）。 通常，光纤的中心芯是具有相对于外包层的α折射率分布（即渐变折射率分布），外半径r1和最大折射率差Dgr; n1的玻璃基中心纤芯 。 中心芯的α折射率分布在中心纤芯的外半径r1处具有最小的折射率，其对应于相对于外包层的折射率差Dgr。nend。 内包层具有相对于外包层的外半径r2，宽度w2和折射率差Dgr; n2。 埋置的沟槽具有相对于外包层的外半径rext，宽度w3和折射率差Dgr; n3。 多模光纤通常具有减小的弯曲损耗，在850纳米和1300纳米的波长处的高带宽以及降低的包层效应。

    Multimode Optical Fiber with Low Bending Losses and Reduced Cladding Effect
    26.
    发明申请
    Multimode Optical Fiber with Low Bending Losses and Reduced Cladding Effect 有权
    具有低弯曲损耗和降低包层效应的多模光纤

    公开(公告)号：US20110135262A1

    公开(公告)日：2011-06-09

    申请号：US12959688

    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 ,  G02B6/03627 ,  G02B6/0365

    摘要： The present invention embraces an optical fiber that includes a central core having an alpha-index profile with respect to an outer cladding. The optical fiber also includes an inner cladding, a depressed trench, and an outer cladding. Typically, the alpha-index profile of the central core is interrupted at a point having a positive 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： 本发明包括一种光纤，其包括相对于外包层具有α-折射率分布的中心芯。 光纤还包括内包层，凹陷沟槽和外包层。 通常，中心芯的α折射率分布在相对于外包层具有正折射率差的点处中断。 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。

    Single-Mode Optical Fiber Having Reduced Bending Losses
    28.
    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：US20090279835A1

    公开(公告)日：2009-11-12

    申请号：US12436423

    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 positive 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和正折射率差Deltan2，其中Deltan2小于Deltan1。 凹陷沟槽具有与光学包层的半径r3和负折射率差Deltan3。 在1310纳米的波长下，光纤的模场直径（MFD）在8.6微米和9.5微米之间，在1550纳米的波长下，光纤具有小于约0.25×10 -3 dB /转的弯曲损耗， 曲率半径为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。