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公开(公告)号：EP3035091A4
公开(公告)日：2017-04-05
申请号：EP15754524
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.
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公开(公告)号：EP3029498A4
公开(公告)日：2017-03-29
申请号：EP15759007
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.
摘要翻译： 在C波段和L波段中，多芯光纤1包括：九个或更多个芯元件10和20，其分别包括至少高达二阶LP模的光的芯11和21，内包层12 和22，以及沟槽层13和23; 和外包层30.通过彼此相邻的芯11和21传播的光的有效折射率彼此不同，使得最高阶LP模式的光的串扰的大小通常通过芯11和 21彼此相邻的纤芯11和21之间的直径比直径小于100mm的弯曲直径处的峰值，并且芯部在中心部分具有比外周部分更高的折射率，使得 芯11和12的差模组群延迟为700皮秒/ km或更小。
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公开(公告)号：EP2682793A4
公开(公告)日：2014-10-29
申请号：EP12752845
申请日：2012-02-29
申请人： FUJIKURA LTD
CPC分类号： G02B6/02042 , G02B6/02366 , G02B6/0365
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公开(公告)号：EP2963465A4
公开(公告)日：2016-11-02
申请号：EP14757761
申请日：2014-02-27
CPC分类号： G02B6/02042 , G02B6/03605
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公开(公告)号：EP3171205A4
公开(公告)日：2018-03-21
申请号：EP16749293
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.
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