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公开(公告)号：US08879878B2
公开(公告)日：2014-11-04
申请号：US13534793
申请日：2012-06-27
CPC分类号： G02B6/0288 , G02B6/03605 , G02B6/0365 , G02B6/03683
摘要： A depressed graded-index multimode optical fiber includes a central core, an inner depressed cladding, a depressed trench, an outer depressed cladding, and an outer cladding. The central core has an alpha-index profile. The depressed claddings limit the impact of leaky modes on optical-fiber performance characteristics (e.g., bandwidth, core size, and/or numerical aperture).
摘要翻译： 凹陷渐变折射率多模光纤包括中心芯，内凹陷包层，凹陷沟槽，外凹陷包层和外包层。 中心核心有一个alpha索引配置文件。 凹陷的包层限制了泄漏模式对光纤性能特性（例如带宽，磁芯尺寸和/或数值孔径）的影响。
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公开(公告)号：US20130100437A1
公开(公告)日：2013-04-25
申请号：US13652627
申请日：2012-10-16
IPC分类号： G01N21/01
CPC分类号： G02B6/0288 , G02B6/262 , H04B10/073 , H04B10/079 , H04B10/2581
摘要： A method of assessing the power penalty at a given bit error rate of a multimode fiber including measuring a set of elementary fiber responses corresponding to different offset launches of light over the core radius into the multimode fiber, generating a global fiber response by applying, to the set of elementary fiber responses, a set of weighting coefficients and delays depending on the different offset launches of the elementary fiber responses, and computing a parameter representative of a fiber power penalty from the global fiber response, wherein the set of weighting coefficients includes several subsets of weighting coefficients time delayed relative to one another, wherein at least one relative time delay is not set to zero, and wherein weighting coefficients of each subset depend on the different offset launches of the elementary fiber responses.
摘要翻译： 一种在多模光纤的给定误码率下评估功率损耗的方法，包括测量对应于在芯半径上的光的不同偏移发射的多个基本光纤响应的集合到多模光纤中，通过应用到 基本光纤响应的集合，取决于基本光纤响应的不同偏移启动的一组加权系数和延迟，以及从全局光纤响应计算表示光纤功率代价的参数，其中加权系数集合包括几个 加权系数的子集相对于彼此延迟，其中至少一个相对时间延迟未被设置为零，并且其中每个子集的加权系数取决于基本光纤响应的不同的偏移发射。
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公开(公告)号：US20130004135A1
公开(公告)日：2013-01-03
申请号：US13534793
申请日：2012-06-27
IPC分类号： G02B6/036
CPC分类号： G02B6/0288 , G02B6/03605 , G02B6/0365 , G02B6/03683
摘要： A depressed graded-index multimode optical fiber includes a central core, an inner depressed cladding, a depressed trench, an outer depressed cladding, and an outer cladding. The central core has an alpha-index profile. The depressed claddings limit the impact of leaky modes on optical-fiber performance characteristics (e.g., bandwidth, core size, and/or numerical aperture).
摘要翻译： 凹陷渐变折射率多模光纤包括中心芯，内凹陷包层，凹陷沟槽，外凹陷包层和外包层。 中心核心有一个alpha索引配置文件。 凹陷的包层限制了泄漏模式对光纤性能特性（例如带宽，磁芯尺寸和/或数值孔径）的影响。
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公开(公告)号：US20070127878A1
公开(公告)日：2007-06-07
申请号：US11556895
申请日：2006-11-06
申请人： Louis-Anne DEMONTMORILLON , Pieter Matthijsse , Pascale Nouchi , Denis Molin , Marianne Bigot-Astruc , Pierre Sillard , Frans Gooijer , Ivo Flammer , Yves Lumineau
发明人： Louis-Anne DEMONTMORILLON , Pieter Matthijsse , Pascale Nouchi , Denis Molin , Marianne Bigot-Astruc , Pierre Sillard , Frans Gooijer , Ivo Flammer , Yves Lumineau
CPC分类号： G02B6/0365 , C03B37/018 , C03B2201/12 , C03B2201/31 , G02B6/02214 , G02B6/02266 , G02B6/03661
摘要： An optical transmission fiber comprises a central core having an index difference Δn1 with an outer optical cladding; a first inner cladding having an index difference Δn2 with the outer cladding; and a second buried inner cladding having an index difference Δn3 with the outer cladding of less than −3.10−3. The second buried inner cladding moreover contains Germaniumn in a weight concentration of between 0.5% and 7%. The fiber shows reduced bending and microbending losses whilst exhibiting the optical performances of a standard single-mode fiber (SSMF).
摘要翻译： 光传输光纤包括具有外光学包层的折射率差Deltan＆lt; 1＆gt;的中心纤芯; 具有与外包层的折射率差Deltan <2>的第一内包层; 以及第二掩埋内包层，其外包层的折射率差Deltan 3＆lt; 3＆lt; 3＆lt; 3＆gt;。 第二掩埋的内包层还包含重量浓度在0.5％和7％之间的锗。 光纤显示出减小的弯曲和微弯损耗，同时表现出标准单模光纤（SSMF）的光学性能。
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公开(公告)号：US08639079B2
公开(公告)日：2014-01-28
申请号：US13434101
申请日：2012-03-29
CPC分类号： G02B6/0288 , G02B6/0281 , G02B6/0365
摘要： A multimode optical fiber includes a central core surrounded by an outer cladding. The central core has a graded-index profile with respect to the outer cladding and an outer radius r1 of between about 22 microns and 28 microns. The optical fiber also includes an inner cladding positioned between the central core and the outer cladding, and a depressed trench positioned between the inner cladding and the outer cladding. The multimode optical fiber exhibits reduced bending losses.
摘要翻译： 多模光纤包括由外包层包围的中心芯。 中心纤芯具有相对于外包层的渐变折射率分布，以及在约22微米与28微米之间的外半径r1。 光纤还包括位于中心芯和外包层之间的内包层，以及位于内包层和外包层之间的凹陷槽。 多模光纤表现出减小的弯曲损耗。
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公开(公告)号：US08644664B2
公开(公告)日：2014-02-04
申请号：US13362357
申请日：2012-01-31
IPC分类号： G02B6/028
CPC分类号： G02B6/0288 , G02B6/0281 , G02B6/0365 , G02B6/03661 , G02B6/03666
摘要： The present invention embraces an optical fiber that includes a central core having an alpha refractive index profile with respect to an outer optical cladding. The optical fiber also includes an inner cladding and a buried trench. The central core includes a core matrix doped with at least fluorine and a dopant element that increases refractive index. The optical fiber typically has reduced bending losses and cladding effect as well as a high bandwidth at the wavelengths of 850 nanometers and 1300 nanometers for high-data-rate applications.
摘要翻译： 本发明包括一种光纤，其包括相对于外部光学包层具有α折射率分布的中心纤芯。 光纤还包括内包层和埋入沟槽。 中心芯包括掺杂至少氟的芯基质和增加折射率的掺杂剂元素。 在高数据速率应用中，光纤通常具有减小的弯曲损耗和包层效应以及波长为850纳米和1300纳米的高带宽。
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公开(公告)号：US08391661B2
公开(公告)日：2013-03-05
申请号：US13362395
申请日：2012-01-31
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。
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公开(公告)号：US20120195549A1
公开(公告)日：2012-08-02
申请号：US13362357
申请日：2012-01-31
CPC分类号： G02B6/0288 , G02B6/0281 , G02B6/0365 , G02B6/03661 , G02B6/03666
摘要： The present invention embraces an optical fiber that includes a central core having an alpha refractive index profile with respect to an outer optical cladding. The optical fiber also includes an inner cladding and a buried trench. The central core includes a core matrix doped with at least fluorine and a dopant element that increases refractive index. The optical fiber typically has reduced bending losses and cladding effect as well as a high bandwidth at the wavelengths of 850 nanometers and 1300 nanometers for high-data-rate applications.
摘要翻译： 本发明包括一种光纤，其包括相对于外部光学包层具有α折射率分布的中心纤芯。 光纤还包括内包层和埋入沟槽。 中心芯包括掺杂至少氟的芯基质和增加折射率的掺杂剂元素。 在高数据速率应用中，光纤通常具有减小的弯曲损耗和包层效应以及波长为850纳米和1300纳米的高带宽。
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公开(公告)号：US08565568B2
公开(公告)日：2013-10-22
申请号：US13037943
申请日：2011-03-01
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Deltan1的基于玻璃的中心芯。 中心芯的α折射率分布在中心芯的外半径r1处具有最小折射率，其对应于相对于外包层的折射率差Deltanend。 内包层具有相对于外包层的外半径r2，宽度w2和折射率差Deltan2。 掩埋沟槽具有相对于外包层的外半径rext，宽度w3和折射率差Deltan3。 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。
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50.发明授权公开(公告)号：US08406593B2
公开(公告)日：2013-03-26
申请号：US12959688
申请日：2010-12-03
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。
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