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公开(公告)号：US10830945B2
公开(公告)日：2020-11-10
申请号：US16334818
申请日：2017-11-08
Inventor： Wei Zheng , Gaoqing Lei , Wu Yang
Abstract: A high bandwidth radiation-resistant multimode optical fiber includes a core and a cladding layer surrounding the core. The core is a fluorine-doped quartz glass layer with a graded refractive index distribution and a distribution power exponent α of 1.7-2.2. The core has R1 of 15-35 μm and Δ1%min of −0.8% to −1.2%. The cladding layer has an inner cladding layer having R2 of 15-38 μm and Δ2% of −0.8% to −1.2% and/or a depressed inner cladding layer having R3 of 15-55 μm and Δ3 of −1.0% to −1.4%, an intermediate cladding layer having R4 of 15.5-58 μm and Δ4 of −0.7% to −0.2% a depressed cladding layer hasving R5 of 16-60 μm and Δ5 of −0.8% to −1.2%, and an outer cladding layer sequentially formed from inside to outside. The outer cladding layer is a pure silica glass layer.
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公开(公告)号：US10317619B2
公开(公告)日：2019-06-11
申请号：US15781564
申请日：2016-10-09
Inventor： Runhan Wang , Rong Huang , Haiying Wang , Ruichun Wang , Shengya Long
Abstract: A high-bandwidth bend-insensitive multimode optical fiber includes a core and a cladding. A refractive index profile of the core has a parabola shape and a distribution index thereof is α. The core has a radius of 23-27 μm. A maximum relative refractive index difference of a central position of the core is 0.9%-1.2%. The core is a germanium-fluorine co-doped silicon dioxide glass layer. The central position of the core has a minimum amount of fluorine doped, and a mass percentage of fluorine content is CF,min. A mass percentage of fluorine content of the core changes with the radius according to a function. The cladding successively comprises an inner cladding, a trench cladding, and an outer cladding from inside to outside. The optical fiber reduces bandwidth-wavelength sensitivity while improving bandwidth performance; is compatible with existing OM3/OM4 multimode optical fibers, and support wavelength-division multiplexing technology in a wavelength range of 850-950 nm.
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公开(公告)号：US20180039019A1
公开(公告)日：2018-02-08
申请号：US15786048
申请日：2017-10-17
Inventor： Lei ZHANG , Shengya LONG , Jihong ZHU , Jun WU , Hongyan ZHOU , Rui ZHANG , Ruichun WANG
CPC classification number: G02B6/03633 , G02B6/02009 , G02B6/028 , G02B6/036
Abstract: 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.
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公开(公告)号：US11841530B2
公开(公告)日：2023-12-12
申请号：US17047808
申请日：2019-04-11
Inventor： Wufeng Xiao , Rong Huang , Haiying Wang , Runhan Wang , Honghai Wang , Ruichun Wang
CPC classification number: G02B6/0288 , G02B6/0365
Abstract: A high-bandwidth bend-insensitive multimode fiber includes a core laver and a cladding including an inner cladding, a depressed cladding, and an outer cladding arranged sequentially from inside to outside. The core layer is a silicon dioxide glass layer co-doped with germanium, phosphorus (P), and fluorine (F) and has a refractive index profile in a shape of a parabola, a distribution index in a range of 2.0-2.3, a radius in a range of 23-27 μm, and a maximum relative refractive index difference in a range of 0.9-1.2% at its center. A contribution amount of P at the center is in a range of 0.01-0.30%. A doping amount of F increases from the center to the edge of the core layer. A contribution amount of F at the center and edge of the core layer is in range of 0.0% to −0.1%, and −0.40% to −0.20%, respectively.
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公开(公告)号：US20220091328A1
公开(公告)日：2022-03-24
申请号：US17420232
申请日：2020-10-20
Inventor： Lei ZHANG , Ruichun WANG , Rui ZHANG , Chao WU , Lan DENG , Hongyan ZHOU , Lei SHEN , Jie LUO
Abstract: A low-dispersion single-mode optical fiber includes a core and claddings covering the core. The core has a relative refractive index difference of 0.30-0.65% and a radius of 2.5-4.5 μm. The claddings include first, second, third cladding layers and an outer cladding arranged sequentially from inside to outside. The first cladding layer covers the core, and has a relative refractive index difference of −0.70% to −0.30% and a radius of 4.5-7.5 μm. The second cladding layer covers the first cladding layer, and has a relative refractive index difference of −0.20% to −0.25% and a radius of 7.0-12.0 μm. The third cladding layer covers the second cladding layer, and has a relative refractive index difference of −0.60% to 0.00% and a radius of 10.0-20.0 μm. The outer cladding covers the third cladding layer, and is a layer made of pure silicon dioxide glass.
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Patent Agency Ranking
公开(公告)号：US20210165159A1
公开(公告)日：2021-06-03
申请号：US17047808
申请日：2019-04-11
Inventor： Wufeng XIAO , Rong HUANG , Haiying WANG , Runhan WANG , Honghai WANG , Ruichun WANG
Abstract: A high-bandwidth bend-insensitive multimode fiber includes a core laver and a cladding including an inner cladding, a depressed cladding, and an outer cladding arranged sequentially from inside to outside. The core layer is a silicon dioxide glass layer co-doped with germanium, phosphorus (P), and fluorine (F) and has a refractive index profile in a shape of a parabola, a distribution index in a range of 2.0-2.3, a radius in a range of 23-27 μm, and a maximum relative refractive index difference in a range of 0.9-1.2% at its center. A contribution amount of P at the center is in a range of 0.01-0.30%. A doping amount of F increases from the center to the edge of the core layer. A contribution amount of F at the center and edge of the core layer is in range of 0.0% to −0.1%, and −0.40% to −0.20%, respectively.
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公开(公告)号：US10823910B2
公开(公告)日：2020-11-03
申请号：US16542506
申请日：2019-08-16
Inventor： Wufeng Xiao , Runhan Wang , Rong Huang , Halying Wang , Anlin Zhang , Di Yang , Tiejun Wang
Abstract: A small core-diameter graded-index optical fiber include a core layer and a cladding having an inner cladding layer, a depressed cladding layer, and an outer cladding layer from inside to outside thereof. The core layer has a parabolic refractive index profile with a distribution index in a range of 1.9-2.1, a radius in a range of 10-21 μm, and a Δ1 max in a range of 0.7-1.7% at a core layer center, and is a silica glass layer co-doped with germanium, phosphorus, and fluoride. The inner cladding layer is a pure silica layer or an F-doped silica glass layer, and has a unilateral width in a range of 0.5-5 μm and a Δ2 in a range of −0.4-0%. The depressed cladding layer has a unilateral width in a range of 2-10 μm and a Δ3 in a range from −0.8% to −0.2%. The outer cladding layer is a pure silica glass layer.
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公开(公告)号：US20200018895A1
公开(公告)日：2020-01-16
申请号：US16334818
申请日：2017-11-08
Inventor： Wei Zheng , Gaoqing LEI , Wu YANG
Abstract: A high bandwidth radiation-resistant multimode optical fiber includes a core and a cladding layer surrounding the core. The core is a fluorine-doped quartz glass layer with a graded refractive index distribution and a distribution power exponent α of 1.7-2.2. The core has R1 of 15-35 μm and Δ1%min of −0.8% to −1.2%. The cladding layer has an inner cladding layer having R2 of 15-38 μm and Δ2% of −0.8% to −1.2% and/or a depressed inner cladding layer having R3 of 15-55 μm and Δ3 of −1.0% to −1.4%, an intermediate cladding layer having R4 of 15.5-58 μm and Δ4 of −0.7% to −0.2% a depressed cladding layer hasving R5 of 16-60 μm and Δ5 of −0.8% to −1.2%, and an outer cladding layer sequentially formed from inside to outside. The outer cladding layer is a pure silica glass layer.
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公开(公告)号：US09632245B2
公开(公告)日：2017-04-25
申请号：US14930873
申请日：2015-11-03
Inventor： Runhan Wang , Dewu Li , Rong Huang , Gang Chen , Gaoqing Lei , Ruichun Wang , Shengya Long
CPC classification number: G02B6/0288 , G02B6/0365
Abstract: A bend-insensitive multimode optical fiber includes a core layer, and cladding layers surrounding the core layer. The core layer has a parabolic refractive index profile with α being 1.9-2.2, a radius being 23-27 μm, and a maximum relative refractive index difference being between 0.9-1.2%. The inner cladding layer has a width being 1-3 μm and a relative refractive index difference being between −0.05% and 0.1%. The trench cladding layer has a width being 2-5 μm and a relative refractive index difference being between −1% and −0.3%. The core layer is a Ge/F co-doped silica glass layer, where an F doping contribution at a central position of the core layer is less than or equal to 0%, an F doping contribution at an edge portion of the core layer is greater than or equal to −0.45%. The outer cladding layer is a pure silica glass layer.
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公开(公告)号：US20160147012A1
公开(公告)日：2016-05-26
申请号：US14930873
申请日：2015-11-03
Inventor： RUNHAN WANG , DEWU LI , RONG HUANG , GANG CHEN , GAOQING LEI , RUICHUN WANG , SHENGYA LONG
CPC classification number: G02B6/0288 , G02B6/0365
Abstract: A bend-insensitive multimode optical fiber includes a core layer, and cladding layers surrounding the core layer. The core layer has a parabolic refractive index profile with α being 1.9-2.2, a radius being 23-27 μm, and a maximum relative refractive index difference being between 0.9-1.2%. The inner cladding layer has a width being 1-3 μm and a relative refractive index difference being between −0.05% and 0.1%. The trench cladding layer has a width being 2-5 μm and a relative refractive index difference being between −1% and −0.3%. The core layer is a Ge/F co-doped silica glass layer, where an F doping contribution at a central position of the core layer is less than or equal to 0%, an F doping contribution at an edge portion of the core layer is greater than or equal to −0.45%. The outer cladding layer is a pure silica glass layer.
Abstract translation: 弯曲不敏感多模光纤包括芯层和围绕芯层的包覆层。 芯层具有抛物面折射率分布，α为1.9-2.2，半径为23-27μm，最大相对折射率差在0.9-1.2％之间。 内包层的宽度为1-3μm，相对折射率差为-0.05％至0.1％。 沟槽包层的宽度为2-5μm，相对折射率差在-1％和-0.3％之间。 核心层是Ge / F共掺杂石英玻璃层，其中在核心层的中心位置的F掺杂贡献小于或等于0％，核心层的边缘部分处的F掺杂贡献为 大于或等于-0.45％。 外包层是纯石英玻璃层。
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