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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：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。
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5.发明授权公开(公告)号：US07428361B2
公开(公告)日：2008-09-23
申请号：US11422783
申请日：2006-06-07
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。
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公开(公告)号：US07356234B2
公开(公告)日：2008-04-08
申请号：US11743365
申请日：2007-05-02
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。
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7.发明申请公开(公告)号：US20070140635A1
公开(公告)日：2007-06-21
申请号：US11422783
申请日：2006-06-07
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。
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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：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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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
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 。
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