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公开(公告)号：EP4283352A1
公开(公告)日：2023-11-29
申请号：EP22742618.6
申请日：2022-01-19
发明人： MUKASA, Kazunori , KASAHARA, Minoru , AISO, Keiichi , TSUCHIDA, Yukihiro , YOMOGITA, Naoya , SUGANE, Takumi , SUGANUMA, Ichihiko , GONOHE, Tomoaki , IWAYA, Mitsuhiro , VARALLYAY, Zoltan , MIHALFFY, Tamas
摘要： An optical fiber includes a core portion, a side core layer, a cladding portion, a primary layer, and a secondary layer. Regarding a relative refractive-index difference Δ1 of the core portion, a relative refractive-index difference Δ2 of the side core layer, and a relative refractive-index difference ΔClad of the cladding portion; the relationship Δ1>ΔClad>Δ2 holds true as well as the relationship 0>Δ2 holds true. That is, when the relative refractive-index difference Δ1 is equal to or greater than 0.23% and equal to or smaller than 0.30%, when the relative refractive-index difference Δ2 is equal to or greater than -0.23% and equal to or smaller than -0.08%, when the difference (Δ1-Δ2) is equal to or greater than 0.36% and equal to or smaller than 0.53%, when a core diameter 2a represents the core diameter of the core portion, and when an outer diameter 2b represents the outer diameter of the side core layer; the ratio b/a is equal to or greater than 2 and equal to or smaller than 5; the core diameter 2a is equal to or greater than 11.5 µm and equal to or smaller than 14.5 µm; the effective core area at the wavelength of 1550 nm is equal to or greater than 100 µm 2 and equal to or smaller than 160 µm 2 ; the primary layer thickness as well as the secondary layer thickness is equal to 5 µm; the primary elastic modulus is smaller than the secondary elastic modulus; and the microbending loss at the wavelength of 1550 is equal to or smaller than 1.0 dB/km.
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2.发明公开OPTICAL FIBER COLORED CORE, OPTICAL FIBER TAPE CORE AND OPTICAL FIBER CABLE 审中-公开GEFÄRBTERGLASFASERKERN，GLASFASER-BANDKERN UND GLASFASERKABEL
公开(公告)号：EP2816383A1
公开(公告)日：2014-12-24
申请号：EP12868565.8
申请日：2012-10-26
IPC分类号： G02B6/44
CPC分类号： G02B6/4403 , G02B6/02395 , G02B6/4402 , G02B6/4409 , G02B6/4482
摘要： The present invention provides a colored optical fiber that shows anti-microbend property and hot-water resistance, an optical fiber ribbon that utilizes the same, and an optical fiber cable.
It is a colored optical fiber 1, which comprises two coating layers of a primary coating layer 31 and a secondary coating layer 32, wherein either one of the primary coating layer 31 or the secondary coating layer 32 is colored, both coating layers have equilibrium elastic moduli of 60 MPa or less, and the secondary coating layer 32 has a relaxation modulus of 410 MPa or more, an optical fiber ribbon 4 that utilizes it, and an optical fiber cable 8.摘要翻译： 本发明提供一种显示抗微生物性和耐热水性的有色光纤，利用该光纤的光纤带，以及光缆。 它是一个有色光纤1，它包括一个主涂层31和二次涂层32的两个涂层，其中一次涂层31或二次涂层32中的任一个被着色，两个涂层均具有平衡弹性 60MPa以下的模量，第二被覆层32的松弛模量为410MPa以上，利用它的光纤带4和光纤电缆8。
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公开(公告)号：EP2671852A1
公开(公告)日：2013-12-11
申请号：EP12742592.4
申请日：2012-02-01
CPC分类号： G02B6/02395 , C03C25/50 , G02B6/4403
摘要： The present invention provides an optical fiber in which transmission loss is not easily increased when the optical fiber is immersed in water and then dried and also which has a solvent resistant property and a micro-bend resistant property. An optical fiber (1) according to one embodiment of the present invention is an optical fiber (1) in which at least two layers of coating resin (3) coat the circumference of a glass optical fiber (2). When a Young's modulus of the first coating layer (31) of the coating resin (3) is defined by PY (MPa) and a water extractable rate of the coating resin (3) after immersion in 60°C hot water for 168 hours is defined by E (mass·%), a formula of 1.8 ≤ E ≤ 8.61 × PY + 1.40 is satisfied.
摘要翻译： 本发明提供了一种光纤，其中当光纤浸入水中然后干燥时传输损失不容易增加，并且还具有耐溶剂性和微弯曲性能。 根据本发明的一个实施例的光纤（1）是其中至少两层涂覆树脂（3）涂覆玻璃光纤（2）的周边的光纤（1）。 当涂覆树脂（3）的第一涂层（31）的杨氏模量由PY（MPa）定义并且在60℃热水中浸渍168小时后涂覆树脂（3）的可提取水分率为 由E（质量·％）定义，满足1.8≤E≤8.61×PY + 1.40的公式。
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公开(公告)号：EP4306494A1
公开(公告)日：2024-01-17
申请号：EP22767053.6
申请日：2022-03-07
IPC分类号： C03C25/50 , C03C25/6226 , G02B6/44
摘要： A colored optical fiber comprises a bare optical fiber, a primary layer formed of a first ultraviolet curing resin covering the bare optical fiber, and a secondary layer formed of a second ultraviolet curing resin covering the primary layer, wherein a Young's modulus of the primary layer is smaller than 70% with respect to a saturated Young's modulus of the primary layer, and wherein the saturated Young's modulus of the primary layer is smaller than or equal to 0.85 MPa.
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公开(公告)号：EP3176134A1
公开(公告)日：2017-06-07
申请号：EP15827076.9
申请日：2015-06-17
CPC分类号： G02B6/02395 , C03C25/1065 , C03C25/24 , C03C25/475 , G02B6/44 , G02B6/4403 , G02B6/4482
摘要： The present invention provides a two-layer structure colored optical fiber which includes a colored secondary coating layer improved in collectability and separability. The two-layer structure colored optical fiber in an embodiment of the present invention includes a glass optical fiber, a primary coating layer coating the glass optical fiber, and a colored secondary coating layer coating the primary coating layer. The secondary coating layer has such characteristics that a surface cure percentage is 99% or more at an infrared absorption peak of a wave number of 1407 cm -1 and a surface kinetic friction force in Knot Test is less than 0.075 N.
摘要翻译： 本发明提供了一种双层结构彩色光纤，其包括改善了可收集性和可分离性的着色二次涂层。 本发明实施例中的双层结构彩色光纤包括玻璃光纤，涂覆玻璃光纤的第一涂层和涂覆第一涂层的彩色第二涂层。 二次包覆层具有在波数1407cm -1的红外吸收峰处表面固化率为99％以上，并且结试验中的表面动力摩擦力小于0.075N的特性。
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公开(公告)号：EP3176134B1
公开(公告)日：2020-09-02
申请号：EP15827076.9
申请日：2015-06-17
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7.发明公开OPTICAL FIBER CORE WIRE, OPTICAL FIBER TAPE CORE WIRE, AND OPTICAL CABLE 审中-公开GLASFASERKERNLEITUNG，GLASFASERBANDKERN UND OPTISCHES KABEL
公开(公告)号：EP2816384A1
公开(公告)日：2014-12-24
申请号：EP12868568.2
申请日：2012-12-17
IPC分类号： G02B6/44
CPC分类号： G02B6/4494 , G02B6/02395 , G02B6/4403 , G02B6/4404
摘要： The purpose of the present invention is to provide, by a configuration or method different from conventional art, a coated optical fiber enabling reduced interface delamination between a glass fiber and a primary coating layer when the coated optical fiber is immersed in water, and a reduction of transmission loss increase. A coated optical fiber according to one embodiment of the present invention is provided with a glass fiber, a primary coating layer coated on the glass fiber, a secondary coating layer coated on the primary coating layer, and a colored layer coated on the secondary coating layer. The coated optical fiber is configured so that small water bubbles are generated substantially evenly within the primary coating layer when the coated optical fiber is immersed for 200 days in warm water of 60°C.
摘要翻译： 本发明的目的是通过与传统技术不同的结构或方法，提供一种涂覆光纤，当涂覆的光纤浸入水中时，能够减少玻璃纤维和主要涂层之间的界面分层，并且还原 的传输损耗增加。 根据本发明的一个实施方案的涂覆光纤具有玻璃纤维，涂覆在玻璃纤维上的主要涂层，涂覆在第一涂层上的二次涂层和涂覆在第二涂层上的着色层 。 涂布光纤被构造成当涂覆的光纤在60℃的温水中浸渍200天时，基本均匀地在主涂层内产生小的水泡。
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公开(公告)号：EP4238946A1
公开(公告)日：2023-09-06
申请号：EP21886207.6
申请日：2021-10-26
IPC分类号： C03C25/1065 , C03C25/285 , C03C25/50 , C03C25/6226 , G02B6/02 , G02B6/44
摘要： Provided is a colored optical fiber of which a primary layer is easily formed. The colored optical fiber includes a bare optical fiber, a primary layer formed of an ultraviolet curing resin covering the bare optical fiber, and a secondary layer formed of an ultraviolet curing resin covering the primary layer. Young's modulus of the primary layer is smaller than 70% with respect to a saturated Young's modulus of the primary layer. The saturated Young's modulus of the primary layer is larger than or equal to 0.84 MPa.
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公开(公告)号：EP3851890A1
公开(公告)日：2021-07-21
申请号：EP19860490.2
申请日：2019-09-11
IPC分类号： G02B6/44 , C03C25/104
摘要： Provided is a coated optical fiber and an optical fiber cable capable of suppressing transmission loss (microbend loss) even in an optical fiber having high microbend sensitivity.
In the present invention, the degree of freedom of a primary layer 11 represented by the equation (I) and the rigidity of a secondary layer 12 represented by the equation (II) are set in specific ranges, respectively. Thus, the present invention provides a coated optical fiber 1 capable of suppressing the transmission loss even when an optical fiber 10 having high microbend sensitivity such as a BI fiber having a large effective core cross-sectional area A eff of an optical fiber is used. The present invention can be widely used as a coated optical fiber 1 constituting a coated optical fiber ribbon or as a coated optical fiber 1 housed in an optical fiber cable. Further, an optical fiber cable including such coated optical fibers 1 enjoys the effect of the above-described coated optical fiber 1.
[Math. 1] β P × P ISM ≥ 600 S / P × S ISM / P ISM ≤ 1,000-
公开(公告)号：EP3162775B1
公开(公告)日：2020-03-18
申请号：EP15811785.3
申请日：2015-06-25
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