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公开(公告)号：EP2806297A1
公开(公告)日：2014-11-26
申请号：EP12866305.1
申请日：2012-12-13
CPC分类号： G02B6/02042 , G02B6/036 , G02B6/0365
摘要： There is provided a multi-core fiber that can suppress the crosstalk between cores adjacent to each other even in the case where the multi-core fiber is nonlinearly disposed while suppressing splicing losses.
A multi-core fiber (1) includes an even number of six or more of cores and a clad (20) that surrounds the outer circumferential surfaces of the cores. The cores are formed of two types of cores (11) and (12) in which an effective refractive index difference in a fundamental mode is 0.002 or less in a predetermined range or more that the effective refractive index difference in the fundamental mode is varied according to a core pitch. Two types of the cores (11) and (12) are alternately and annularly disposed at regular spacings. A difference in the mode field diameter of light propagating through the cores (11) and (12) is 1 µm or less.摘要翻译： 提供了一种多芯光纤，即使在多芯光纤被非线性设置的情况下，也能够抑制彼此相邻的芯之间的串扰，同时抑制了接合损耗。 多芯光纤（1）包括偶数个六个或更多个芯和包围芯的外周表面的包层（20）。 芯由两种类型的芯（11）和（12）形成，其中基模的有效折射率差在0.002或更小的预定范围内或更大，使得基模的有效折射率差根据 到核心球场。 两种类型的芯（11）和（12）以规则的间隔交替且环形地布置。 传播通过芯（11）和（12）的光的模场直径的差值为1μm或更小。
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公开(公告)号：EP3290970A1
公开(公告)日：2018-03-07
申请号：EP16786486.7
申请日：2016-04-26
CPC分类号： G02B6/02042 , G02B6/02 , G02B6/02014 , G02B6/02023 , G02B6/036 , G02B6/0365 , G02B6/03694 , G02B6/44
摘要： The present invention relates to a multicore fiber for performing communication using light up to an xth-order LP mode (where x is an integer of 1 or more) in a communication band. Each of a plurality of cores 11 propagates light up to an (x + 1)th-order LP mode. A core pitch Λ is set to a distance at which crosstalk of the light up to the xth-order LP mode becomes -40 dB/km or less and crosstalk of light of the (x + 1)th-order LP mode becomes -30 dB/km or more. A distance Tc between the core 11 disposed on an outermost side in a clad 20 and a cover layer 30 is set to a distance at which an excessive loss of the light up to the xth-order LP mode due to absorption into the cover layer becomes 0.001 dB/km or less and an excessive loss of the light of the (x + 1)th-order LP mode due to absorption into the cover layer becomes 3 dB/km or more.
摘要翻译： 本发明涉及在通信频带中使用直到x阶LP模式（其中x是1或更大的整数）的光执行通信的多芯光纤。 多个芯11中的每一个将光传播到（x + 1）阶LP模式。 芯间距Λ被设定为直到x次LP模式的光的串扰变为-40dB / km或更小并且（x + 1）次LP模式的光的串扰变成-30 dB / km或更多。 设置在包层20的最外侧的芯11与覆盖层30之间的距离Tc被设定为由于吸收到覆盖层中而导致直到x次LP模式的光的过度损失变为的距离 0.001dB / km或更小，并且由于吸收到覆盖层中而导致的（x + 1）阶LP模式的光的过度损失变为3dB / km或更大。
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公开(公告)号：EP2806296A1
公开(公告)日：2014-11-26
申请号：EP12865553.7
申请日：2012-12-13
CPC分类号： G02B6/02042 , G02B6/0286 , G02B6/03622 , G02B6/0365
摘要： There is provided a multi-core fiber that can dispose a large number of cores according to the outer diameter of a clad while suppressing the crosstalk between cores adjacent to each other.
A multi-core fiber (1) includes six or more of core elements (10) having a core (11) a first clad (12) surrounding the outer circumferential surface of the core (11) and a second clad (13) surrounding the outer circumferential surface of the first clad (12), and includes a clad (20) surrounding the core elements (10). All of expressions are satisfied: n 1 > n 2 > n 3 n 1 > n 4 n 3 n 4
wherein the refractive index of the core (11) is n 1 , the refractive index of the first clad (12) is n 2 , the refractive index of the second clad (13) is n 3 , and the refractive index of the clad (20) is n 4 . The core elements (10) are disposed so that the inter-center pitch between the cores (11) adjacent to each other is disposed at regular spacings and the centers of the cores (11) are annularly disposed.摘要翻译： 提供了一种多核纤维，其可以在抑制彼此相邻的芯之间的串扰的同时根据包层的外径设置大量的芯。 多芯光纤（1）包括六个或更多个具有芯（11）的芯元件（10），围绕所述芯（11）的外圆周表面的第一包层（12）和围绕所述芯 第一包层（12）的外圆周表面，并且包括围绕所述芯元件（10）的包层（20）。 满足所有表达式：n 1> n 2> n 3 n 1> n 4 n 3
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公开(公告)号：EP3306365A1
公开(公告)日：2018-04-11
申请号：EP16799933.3
申请日：2016-05-20
IPC分类号： G02B6/02
CPC分类号： G02B6/02042 , G02B6/02 , G02B6/02023 , G02B6/03694
摘要： Provided is a multi-core fiber 1 for performing communication using light up to an xth-order LP mode (where x is an integer of 1 or more) in a communication band. The multi-core fiber 1 includes a plurality of signal light propagation cores 11 that propagate light up to an (x + 1)th-order LP mode and at least one high-loss core 15 that has a higher loss of propagated light than the signal light propagation cores 11. Crosstalk occurs between light of the (x + 1)th-order LP mode propagated through at least one signal light propagation core 11 and light of a primary LP mode propagated through at least one high-loss core 15.
摘要翻译： 提供了一种多芯光纤1，用于使用直到通信频带中的x阶LP模式（其中x是1或更大的整数）的光进行通信。 多芯光纤1包括将光传播至第（x + 1）阶LP模式的多个信号光传播核心11以及具有比第（x + 1）阶LP模式更高的传播光损耗的至少一个高损耗芯15 信号光传播核11.串扰发生在通过至少一个信号光传播核心11传播的（x + 1）阶LP模式的光与通过至少一个高损耗核心15传播的主LP模式的光之间。
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公开(公告)号：EP3035091A1
公开(公告)日：2016-06-22
申请号：EP15754524.5
申请日：2015-02-25
CPC分类号： G02B6/02042 , G02B6/0288 , G02B6/14 , G02B6/268 , G02B6/287 , G02B2006/2839
摘要： A multicore fiber 1 includes: a first core 11 that propagates light of up to an x-th order LP mode (here, x is an integer of "2" or more); and a second core 12 that propagates light of up to a y-th order LP mode (here, y is an integer of "1" or more), and a small diameter portion 33 in which a propagation constant of light of an x 1 -th order LP mode of the first core 11 (here, x 1 is an integer of "2" or more and x or less) and a propagation constant of light of a y1-th order LP mode of the second core 12 (here, y 1 is an integer of "1" or more and y or less other than x 1 ) coincide with each other and a large diameter portion in which a propagation constant of light of each LP mode of the first core 11 and a propagation constant of light of each LP mode of the second core 12 are configured not to coincide with each other are arranged.
摘要翻译： 多芯光纤1包括：传播高达x阶LP模式的光的第一核11（这里，x是“2”以上的整数）; 以及传播高达y阶LP模式（这里，y为“1”以上的整数）的光的第二芯体12和小直径部33，其中x 1的光的传播常数 第一磁芯11（这里，x 1是“2”以上且x以下的整数）和第二磁芯12的y1级LP模式的光的传播常数（这里 ，y 1是除了x 1之外的“1”以上且y以下的整数彼此一致，并且大直径部分，其中第一芯11的每个LP模式的光的传播常数和传播常数 第二芯12的每个LP模式的光被配置为不彼此重合。
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公开(公告)号：EP3171205A1
公开(公告)日：2017-05-24
申请号：EP16749293.3
申请日：2016-02-10
IPC分类号： G02B6/02
CPC分类号： G02B6/02042 , G02B6/02014
摘要： The effective refractive indexes of core elements 10a to 10c are different from each other, and the effective refractive indexes of the core elements 10a to 10c and the effective refractive index of a second core 21 are different from each other. No core is disposed at the lattice point of a triangular lattice of a first layer LY1. First cores 11a and 11b of the core elements 10a and 10b are disposed at the lattice points of a second layer LY2. A first core 11c of the core element 10c and the second core 21 are alternately disposed at the lattice points of a third layer LY3. In a fourth layer LY4, no core is disposed at six lattice points, and the first cores 11a and 11b of the core elements 10a and 10b are disposed at the other lattice points. The second cores 21 are adjacent to the lattice points of the fourth layer LY4, at which no core is disposed. The effective refractive indexes of the core elements adjacent to each other are different from each other.
摘要翻译： 芯元件10a至10c的有效折射率彼此不同，芯元件10a至10c的有效折射率和第二芯21的有效折射率彼此不同。 在第一层LY1的三角格子的格子点处没有布置芯。 芯元件10a和10b的第一芯11a和11b设置在第二层LY2的格点处。 芯元件10c的第一芯11c和第二芯21交替设置在第三层LY3的格子点处。 在第四层LY4中，在六个格子点不设置芯，并且将芯元件10a和10b的第一芯11a和11b设置在其他格子点。 第二芯21与没有设置芯的第四层LY4的格点相邻。 彼此相邻的芯元件的有效折射率彼此不同。
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公开(公告)号：EP3029498A1
公开(公告)日：2016-06-08
申请号：EP15759007.6
申请日：2015-02-27
CPC分类号： G02B6/02042 , G02B6/02219 , G02B6/028 , G02B6/0288 , G02B6/036
摘要： In a C band and an L band, a multi-core fiber 1 includes: nine or more core elements 10 and 20 respectively including cores 11 and 21 that propagate light of at least up to a second-order LP mode, inner cladding layers 12 and 22, and trench layers 13 and 23; and an outer cladding 30. The effective refractive indices of light propagating through the cores 11 and 21 adjacent to each other are different from each other such that a magnitude of crosstalk of light of a highest-order LP mode commonly propagating through the cores 11 and 21 adjacent to each other between the cores 11 and 21 adjacent to each other becomes a peak at a bending diameter smaller than a diameter of 100 mm, and the core has a higher refractive index in a center portion than in an outer circumferential portion such that a differential mode group delay of the cores 11 and 12 is 700 picoseconds/km or less.
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公开(公告)号：EP2963465A1
公开(公告)日：2016-01-06
申请号：EP14757761.3
申请日：2014-02-27
CPC分类号： G02B6/02042 , G02B6/03605
摘要： A multi-core fiber (1) is a multi-core fiber including 10 or greater of even numbered cores and a cladding surrounding the core. In the even numbered cores, a half of cores (11a) are disposed in such a manner that centers are located on the apexes of a regular polygon (RP) whose center is at an origin point (O) in a cladding (20). In the even numbered cores, other cores (11b) are disposed in a manner that centers are located on perpendicular bisectors (LV) of the edges of a regular polygon on the inner side of the regular polygon (RP). The other cores (11b) are disposed in a specific range in the regular polygon (RP).
摘要翻译： 多芯光纤（1）是包括10个或更多个偶数芯和包围芯的包层的多芯光纤。 在偶数个芯中，一半芯（11a）以这样的方式设置，即，其中心位于以包壳（20）中的原点（O）为中心的正多边形（RP）的顶点上。 在偶数个铁芯中，其他铁芯（11b）以中央位于正多边形（RP）内侧的正多边形的边缘的垂直平分线（LV）上的方式设置。 其他芯（11b）配置在正多边形（RP）的特定范围内。
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公开(公告)号：EP2639608A1
公开(公告)日：2013-09-18
申请号：EP11840374.0
申请日：2011-11-07
CPC分类号： G02B6/02042 , G02B6/0365
摘要： The present invention provides a multicore fiber which can reduce crosstalk between cores.
A multicore fiber 1 has: a plurality of core elements 10; and a clad 20 surrounding an outer periphery surface of each of the core elements 10, and each of the core elements 10 has a core 11, a first clad 12 surrounding the outer periphery surface of the core 11 and a second clad 13 surrounding an outer periphery surface of the first clad 12, and when a refractive index of the core 11 is n 1 , a refractive index of the first clad 12 is n 2 , a refractive index of the second clad 13 is n 3 and a refractive index of the clad 20 is n 4 , n 1 > n 2 > n 3 , n 1 > n 4 n 3 n 4
are satisfied.摘要翻译： 本发明提供一种可以减少核心之间的串扰的多芯光纤。 多芯纤维1具有：多个芯元件10; 以及围绕每个芯体10的外周面的包层20，并且每个芯体10具有芯部11，围绕芯部11的外周面的第一包层12和围绕外部的第二包层13 第一包层12的周边表面，并且当芯11的折射率为n 1时，第一包层12的折射率为n 2，第二包层13的折射率为n 3，折射率为 包层20是n 4，n 1> n 2> n 3，n 1> n 4 n 3
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