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公开(公告)号：EP2639608B1
公开(公告)日：2018-10-24
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
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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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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：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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