公开(公告)号：EP3220172B1

公开(公告)日：2019-08-28

申请号：EP15858860.8

申请日：2015-11-10

申请人： YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY

发明人： LONG, Shengya ,  ZHANG, Lei ,  ZHU, Jihong ,  WU, Jun ,  WANG, Ruichun

IPC分类号： G02B6/036

公开(公告)号：EP3330755A1

公开(公告)日：2018-06-06

申请号：EP15900225.2

申请日：2015-12-01

申请人： Yangtze Optical Fibre and Cable Joint Stock Limited Company

发明人： ZHU, Jihong ,  ZHANG, Lei ,  LONG, Shengya ,  WU, Jun ,  AI, Liang ,  WANG, Ruichun

IPC分类号： G02B6/036

CPC分类号： G02B6/02009 ,  G02B1/046 ,  G02B6/02028 ,  G02B6/02219 ,  G02B6/036 ,  G02B6/03683

摘要： An optical fiber with ultra-low attenuation and bend insensitivity includes a core layer and cladding layers. The cladding layers have an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary outer cladding layer. The core layer has a radius of 3.0-3.9 µm, and a relative refractive index difference of -0.04% to 0.12%. The inner cladding layer has a radius of 8-14µm, and a relative refractive index difference of about -0.35% to -0.10%. The trench cladding layer has a radius of about 14-20µm, and a relative refractive index difference of about -0.6% to -0.2%. The auxiliary outer cladding layer has a radius of about 35-50µm, and a relative refractive index difference of about -0.4% to -0.15%. The outer cladding layer is a pure silicon-dioxide glass layer.

公开(公告)号：EP3316010A1

公开(公告)日：2018-05-02

申请号：EP15896192.0

申请日：2015-12-01

申请人： YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY

发明人： ZHANG, Lei ,  LONG, Shengya ,  ZHU, Jihong ,  WU, Jun ,  WANG, Ruichun

IPC分类号： G02B6/028 ,  G02B6/036

CPC分类号： G02B6/03683 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2201/32 ,  C03C2201/42 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2213/00 ,  G02B6/02009

摘要： A doping optimized single-mode optical fiber with ultralow attenuation includes a core layer and cladding layers. The cladding layers has an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary outer cladding layer. The content of fluorine in the core layer is ≤ 0.5 wt%, Δ Ge ≤ 0.12%, Δn 1 ≤ 0.12%. The content of fluorine in the inner cladding layer is 0.5-1.5 wt%, Δn 2 ≤ -0.14%. The content of fluorine in the trench cladding layer is 1-3 wt%, Δn 3 ≤-0.25%. The content of fluorine in the auxiliary outer cladding layer is 0.5-2 wt%, Δn 4 ≤-0.14%. The outer cladding layer is a pure silicon dioxide glass layer and/or a metal-doped silicon dioxide glass layer. The present invention can decrease the viscosity of the core layer, so that the core layer can better match the inner cladding layer and the trench cladding layer. In addition, the core layer is combined with the metal-doped outer cladding layer having a matching viscosity. In this way, the virtual temperature of the optical fiber is overall decreased. And by means of the trench cladding layer design, fundamental mode leakage is restrained, thereby achieving ultralow attenuation performance.

摘要翻译： 具有超低衰减的掺杂优化的单模光纤包括芯层和覆层。 包层具有围绕芯层的内包层，围绕内包层的槽包层，围绕槽包层的辅助外包层和包围辅助外包层的外包层。 芯层中氟的含量≤0.5wt％，ΔGe≤0.12％，Δn1≤0.12％。 内包层中的氟含量为0.5-1.5重量％，Δn2≤-0.14％。 在沟槽熔覆层中的氟含量为1-3重量％，Δn3≤-0.25％。 辅助外包层中氟的含量为0.5-2wt％，Δn4≤-0.14％。 外包层是纯二氧化硅玻璃层和/或金属掺杂二氧化硅玻璃层。 本发明可以降低芯层的粘度，使得芯层可以更好地匹配内包层和沟槽包层。 另外，芯层与具有匹配粘度的金属掺杂外包层结合。 这样，光纤的虚拟温度整体下降。 并且通过槽包层设计，基模漏电被抑制，从而实现超低衰减性能。

公开(公告)号：EP3220172A1

公开(公告)日：2017-09-20

申请号：EP15858860.8

申请日：2015-11-10

申请人： YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY

发明人： LONG, Shengya ,  ZHANG, Lei ,  ZHU, Jihong ,  WU, Jun ,  WANG, Ruichun

IPC分类号： G02B6/036

CPC分类号： G02B6/03683 ,  G02B6/02014 ,  G02B6/02019 ,  G02B6/02266

摘要： A single-mode fiber with an ultra-low attenuation and a large effective area includes a core layer having a radius of 4.8 to 6.5 µm, and a relative refractive index difference Δn 1 of -0.06% to 0.10%, and cladding layers. The cladding layers includes an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary cladding layer. The inner cladding layer has a radius of 9 to 15 µm and a relative refractive index difference of -0.40% to -0.15%. The trench cladding layer has a radius of 12 to 17 µm and a relative refractive index difference of -0.8% to -0.3%. The auxiliary outer cladding layer has a radius of 37 to 50 µm and a relative refractive index difference of -0.6% to -0.25%. The outer cladding layer is a pure-silicon-dioxide glass layer. The single-mode fiber has not only a low attenuation coefficient, a large effective area, low manufacturing cost, but also good parameters of comprehensive performance including cutoff wavelength, bending loss and dispersion etc. in its application bands.

摘要翻译： 具有超低衰减和大有效面积的单模光纤包括半径为4.8至6.5μm，相对折射率差Δn1为-0.06％至0.10％的芯层以及包层。 包层包括围绕芯层的内包层，围绕内包层的槽包层，围绕槽包层的辅助外包层和包围辅助包层的外包层。 内包层具有9至15μm的半径和-0.40％至-0.15％的相对折射率差。 该沟槽包层具有12至17μm的半径和-0.8％至-0.3％的相对折射率差。 辅助外包层具有37至50μm的半径和-0.6％至-0.25％的相对折射率差。 外包层是纯二氧化硅玻璃层。 单模光纤不仅衰减系数低，有效面积大，制造成本低，而且在其应用频段中具有包括截止波长，弯曲损耗和色散等综合性能的良好参数。

公开(公告)号：EP3869246A1

公开(公告)日：2021-08-25

申请号：EP20880727.1

申请日：2020-10-20

申请人： Yangtze Optical Fibre and Cable Joint Stock Limited Company

发明人： ZHANG, Lei ,  WANG, Ruichun ,  ZHANG, Rui ,  WU, Chao ,  DENG, Lan ,  ZHOU, Hongyan ,  SHEN, Lei ,  LUO, Jie

IPC分类号： G02B6/036

摘要： A low-dispersion single-mode fiber is related to. The fiber includes a core layer and a cladding. The core layer has a relative refractive index difference Δ1 in a range from 0.30% to 0.65% and a radius R1 in a range from 2.5 µm to 4.5 µm. The cladding is divided into three cladding layers and one outer cladding from inside to outside. A first cladding layer covers the core layer, and has a relative refractive index difference Δ2 in a range from -0.70% to -0.30% and a radius R2 in a range from 4.5 µm to 7.5 µm. A second cladding layer covers the first cladding layer, and has a relative refractive index difference Δ3 in a range from -0.20% to -0.25% and a radius R3 in a range from 7.0 µm to 12.0 µm. A third cladding layer covers the second cladding layer, and has a relative refractive index difference Δ4 in a range from -0.60% to 0.00% and a radius R4 in a range from 10.0 µm to 20.0 µm. The outer cladding covers the third cladding layer, and is a layer made of pure silicon dioxide glass. The fiber has a cable cutoff wavelength smaller than 1260 nm, relatively low dispersion at a waveband ranging from 1260 nm to 1460 nm on the whole, and good attenuation performance, and is particularly suitable for a WDM transmission system working at a waveband ranging from 1260 nm to 1460 nm.

公开(公告)号：EP3290973A1

公开(公告)日：2018-03-07

申请号：EP15890628.9

申请日：2015-12-01

申请人： Yangtze Optical Fibre and Cable Joint Stock Limited Company

发明人： ZHANG, Lei ,  LONG, Shengya ,  ZHU, Jihong ,  WU, Jun ,  ZHOU, Hongyan ,  ZHANG, Rui ,  WANG, Ruichun

IPC分类号： G02B6/036

CPC分类号： G02B6/03633 ,  G02B6/02009 ,  G02B6/028 ,  G02B6/036 ,  G02B6/03683

摘要： A bending-insensitive single-mode fiber with ultralow attenuation includes a core layer and cladding layers. The cladding layers includes an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary cladding layer. The core layer has a radius of 3.0 to 3.9 µm and a relative refractive index of -0.04% to 0.12%. The inner cladding layer has a radius of 8 to 14 µm and a relative refractive index -0.35% to -0.10%. The trench cladding layer has a radius of 14 to 20 µm and a relative refractive index of -0.6% to -0.2%. The auxiliary outer cladding layer has a radius of 35 to 50 µm and a relative refractive index of -0.4% to -0.15%. The outer cladding layer is a pure silica glass layer.

摘要翻译： 具有超低衰减的弯曲不敏感的单模光纤包括芯层和包层。 包层包括围绕芯层的内包层，围绕内包层的槽包层，围绕槽包层的辅助外包层和包围辅助包层的外包层。 芯层具有3.0至3.9μm的半径和-0.04％至0.12％的相对折射率。 内包层具有8至14μm的半径和-0.35％至-0.10％的相对折射率。 该沟槽包层具有14至20μm的半径和-0.6％至-0.2％的相对折射率。 辅助外包层具有35至50μm的半径和-0.4％至-0.15％的相对折射率。 外包层是纯石英玻璃层。

公开(公告)号：EP3290972A1

公开(公告)日：2018-03-07

申请号：EP15890627.1

申请日：2015-12-01

申请人： Yangtze Optical Fibre and Cable Joint Stock Limited Company

发明人： LONG, Shengya ,  ZHU, Jihong ,  ZHANG, Lei ,  WU, Jun ,  ZHANG, Rui ,  WANG, Ruichun

IPC分类号： G02B6/036

CPC分类号： G02B6/03683 ,  C03C13/046 ,  C03C2213/00 ,  G02B6/02009 ,  G02B6/02266 ,  G02B6/036

摘要： A single-mode fiber with ultralow attenuation includes a core layer and cladding layers. The cladding layers includes an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary cladding layer. The core layer has a radius of 3.9-4.8 µm and a relative refractive index difference of -0.08% to 0.10%. The inner cladding layer has a radius of 9-14 µm and a relative refractive index difference of -0.40% to -0.15%. The trench cladding layer has a radius of 13-25 µm and a refractive index difference of -0.7% to -0.3%. The auxiliary outer cladding layer has a radius of 30-50 µm and a relative refractive index difference of -0.4% to -0.15%. The outer cladding layer is a pure silicon dioxide glass layer.

摘要翻译： 具有超低衰减的单模光纤包括芯层和包层。 包层包括围绕芯层的内包层，围绕内包层的槽包层，围绕槽包层的辅助外包层和包围辅助包层的外包层。 芯层具有3.9-4.8μm的半径和-0.08％至0.10％的相对折射率差。 内包层具有9-14μm的半径和-0.40％至-0.15％的相对折射率差。 该沟槽包层具有13-25μm的半径和-0.7％至-0.3％的折射率差。 辅助外包层具有30-50μm的半径和-0.4％至-0.15％的相对折射率差。 外包层是纯二氧化硅玻璃层。