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1. 发明申请

US20160223743A1 FEW MODE OPTICAL FIBERS FOR SPACE DIVISION MULTIPLEXING 有权
标题翻译：用于空间分割多路复用的模拟光纤
公开(公告)号：US20160223743A1
公开(公告)日：2016-08-04
申请号：US15023028
申请日：2013-09-30
申请人： DRAKA COMTEQ BV
发明人： Pierre Sillard , Denis Molin , Marianne Bigot-Astruc
IPC分类号： G02B6/028 , H04B10/25 , H04J14/00 , G02B6/036
CPC分类号： G02B6/0288 , G02B6/02023 , G02B6/03627 , G02B6/0365 , H04B10/2504 , H04J14/00 , H04J14/04
摘要： The invention relates to an optical fiber comprising an optical core and an optical cladding surrounding the optical core, the optical core having a single α graded-index profile with α≧1, and the optical core having a radius R1 and a maximal refractive index n0, said optical cladding having a refractive index nCl. Said optical cladding comprises a region of depressed refractive index ntrench, having an inner radius R2, with R2≧R1, and an outer radius R3, with R3>R2. According to embodiments of the invention, the α-value of said graded index profile and the optical core radius R1 are chosen such that R1≧13.5 μm and so as to satisfy a criterion C of quality. Thus, the invention provides a few-mode optical fiber, which allow guiding an increased number of LP modes as compared to prior art FMFs, while reaching the lowest Differential Mode Group Delay. The system reach is thus increased over prior art.
摘要翻译：本发明涉及一种光纤，包括光纤芯和包围光纤芯的光学包层，该光纤芯具有α≥1的单个α分度折射率分布，光学芯具有半径R1和最大折射率n0 所述光学包层具有折射率nCl。所述光学包层包括凹陷折射率ntrench的区域，具有R2≥R1的内半径R2和R3> R2的外半径R3。根据本发明的实施例，选择所述渐变折射率分布的α值和光纤半径R1，使得R1≥3.5μm，以便满足质量标准C. 因此，本发明提供了一种多模光纤，与现有技术的FMF相比，在达到最低差分模式组延迟的同时，可以引导增加数量的LP模式。因此与现有技术相比，系统的覆盖面增加。

2. 发明申请

US20160147013A1 BEND-INSENSITIVE MULTIMODE OPTICAL FIBER WITH REDUCED IMPACT OF LEAKY MODES 有权
标题翻译：具有减少损耗模式影响的弯曲多模光纤
公开(公告)号：US20160147013A1
公开(公告)日：2016-05-26
申请号：US14901272
申请日：2013-06-26
申请人： DRAKA COMTEQ BV
发明人： Denis Molin , Marianne Bigot-Astruc , Pierre Sillard , Franciscus Johannes Achten
IPC分类号： G02B6/036 , G02B6/028
CPC分类号： G02B6/0365 , G02B6/0281 , G02B6/0288
摘要： A multimode optical fiber is provides, which includes an optical core and an optical cladding surrounding the optical core. The optical core has a refractive graded-index profile. The optical cladding includes: an inner layer surrounding the optical core, an intermediate layer, called a “depressed trench”, surrounding the inner layer, and an outer layer surrounding the depressed trench and having a constant refractive index. The depressed trench has a width W and a negative refractive index difference Δnt with respect to the outer layer, and is designed so as to satisfy the following inequality: |0.585677−114.681×S+13.7287×S2+18.7343×S×W−4.61112×S×Δnt·103−0.913789×W×Δnt·103|+2×W×Δnt·103
摘要翻译：提供了一种多模光纤，其包括光学核心和围绕光学核心的光学包层。光学芯具有折射分级折射率分布。光学包层包括：围绕光学核心的内层，围绕内层的称为“凹陷沟槽”的中间层，以及围绕凹陷沟槽并具有恒定折射率的外层。凹陷沟槽相对于外层具有宽度W和负折射率差Dgr; nt，并被设计成满足以下不等式：| 0.585677-114.681×S + 13.7287×S2 + 18.7343×S×W -4.61112×S×＆Dgr; nt·103-0.913789×W×＆Dgr; nt·103 | + 2×W×＆Dgr·nt·103 <-30其中：S为内包层的宽度， μm和1.6μm; ＆Dgr; nt包含在-11.10-3和-4.10-3之间; W×＆Dgr; nt·103低于-25μm。

3. 发明申请

US20160231503A1 FEW MODE OPTICAL FIBER LINKS FOR SPACE DIVISION MULTIPLEXING 有权
标题翻译：用于空间分割多路复用的模式光纤链路
公开(公告)号：US20160231503A1
公开(公告)日：2016-08-11
申请号：US15023126
申请日：2013-09-20
申请人： DRAKA COMTEQ BV
发明人： Pierre Sillard , Denis Molin , Marianne Bigot-Astruc
IPC分类号： G02B6/028 , G02B6/02 , H04J14/04 , G02B6/036
CPC分类号： G02B6/0288 , G02B6/02023 , G02B6/02214 , G02B6/03627 , G02B6/0365 , H04J14/00 , H04J14/04
摘要： The invention relates to an optical link comprising N optical fibers, with N≧2. Each optical fiber comprises an optical core and an optical cladding surrounding the optical core, the optical core having a single αi graded-index profile with αi≧1, and the optical core having a radius R1i, where i E [1; N] is an index designating said optical fiber. Said optical cladding comprises a region of depressed refractive index ntrenchi, called a trench, surrounding the optical core. According to embodiments of the invention, for all optical fibers in said link, said optical core radius R1i and said length Li are chosen such that R1i≧13.5 μm and so as to satisfy a criterion C of quality. Thus, the invention provides a few-mode optical fiber link, which allow guiding an increased number of LP modes as compared to prior art FMF links, while reaching low Differential Mode Group Delay.
摘要翻译：本发明涉及一种包括N≥2的N根光纤的光链路。每个光纤包括光纤芯和围绕光纤芯的光学包层，光纤芯具有αi≥1的单个αi分级折射率分布，并且光纤芯具有半径R1i，其中i E [1; N]是指定所述光纤的指标。所述光学包层包括围绕光学核心的被称为沟槽的凹陷折射率ntrenchi的区域。根据本发明的实施例，对于所述链路中的所有光纤，选择所述光纤半径R1i和所述长度Li使得R1i≥3.5μm，以便满足质量标准C. 因此，本发明提供了一种多模光纤链路，与现有技术的FMF链路相比，可以在达到低的差分模式组延迟的同时引导增加数量的LP模式。

4. 发明授权

US09625646B2 Bend-insensitive multimode optical fiber with reduced impact of leaky modes 有权
公开(公告)号：US09625646B2
公开(公告)日：2017-04-18
申请号：US14901272
申请日：2013-06-26
申请人： DRAKA COMTEQ BV
发明人： Denis Molin , Marianne Bigot-Astruc , Pierre Sillard , Franciscus Johannes Achten
IPC分类号： G02B6/28 , G02B6/36 , G02B6/036 , G02B6/028
CPC分类号： G02B6/0365 , G02B6/0281 , G02B6/0288
摘要： A multimode optical fiber is provides, which includes an optical core and an optical cladding surrounding the optical core. The optical core has a refractive graded-index profile. The optical cladding includes: an inner layer surrounding the optical core, an intermediate layer, called a “depressed trench”, surrounding the inner layer, and an outer layer surrounding the depressed trench and having a constant refractive index. The depressed trench has a width W and a negative refractive index difference Δnt with respect to the outer layer, and is designed so as to satisfy the following inequality: |0.585677−114.681×S+13.7287×S2+18.7343×S×W−4.61112×S×Δnt.103−0.913789×W×Δnt.103|+2×W×Δnt.103

5. 发明授权

US10007055B2 Few mode optical fiber links for space division multiplexing having trenched fibers with high leak losses for leaky modes and low bend losses 有权
公开(公告)号：US10007055B2
公开(公告)日：2018-06-26
申请号：US15023126
申请日：2013-09-20
申请人： DRAKA COMTEQ BV
发明人： Pierre Sillard , Denis Molin , Marianne Bigot-Astruc
IPC分类号： G02B6/028 , G02B6/036 , H04J14/00 , H04J14/04 , G02B6/02
CPC分类号： G02B6/0288 , G02B6/02023 , G02B6/02214 , G02B6/03627 , G02B6/0365 , H04J14/00 , H04J14/04
摘要： The invention relates to an optical link comprising N optical fibers, with N≥2. Each optical fiber comprises an optical core and an optical cladding surrounding the optical core, the optical core having a single αi graded-index profile with αi≥1, and the optical core having a radius R1i, where i E [1; N] is an index designating said optical fiber. Said optical cladding comprises a region of depressed refractive index ntrenchi, called a trench, surrounding the optical core. According to embodiments of the invention, for all optical fibers in said link, said optical core radius R1i and said length Li are chosen such that R1i≥13.5 μm and so as to satisfy a criterion C of quality. Thus, the invention provides a few-mode optical fiber link, which allow guiding an increased number of LP modes as compared to prior art FMF links, while reaching low Differential Mode Group Delay.

6. 发明授权

US09638856B2 Few mode optical fibers for space division multiplexing 有权
公开(公告)号：US09638856B2
公开(公告)日：2017-05-02
申请号：US15023028
申请日：2013-09-20
申请人： DRAKA COMTEQ BV
发明人： Pierre Sillard , Denis Molin , Marianne Bigot-Astruc
IPC分类号： G02B6/26 , G02B6/028 , G02B6/036 , H04J14/04 , H04B10/25 , H04J14/00 , G02B6/02
CPC分类号： G02B6/0288 , G02B6/02023 , G02B6/03627 , G02B6/0365 , H04B10/2504 , H04J14/00 , H04J14/04
摘要： The invention relates to an optical fiber comprising an optical core and an optical cladding surrounding the optical core, the optical core having a single α graded-index profile with α≧1, and the optical core having a radius R1 and a maximal refractive index n0, said optical cladding having a refractive index nCl. Said optical cladding comprises a region of depressed refractive index ntrench, having an inner radius R2, with R2≧R1, and an outer radius R3, with R3>R2. According to embodiments of the invention, the α-value of said graded index profile and the optical core radius R1 are chosen such that R1≧13.5 μm and so as to satisfy a criterion C of quality. Thus, the invention provides a few-mode optical fiber, which allow guiding an increased number of LP modes as compared to prior art FMFs, while reaching the lowest Differential Mode Group Delay. The system reach is thus increased over prior art.

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