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1. 发明申请

WO2014168739A1 LARGE EFFECTIVE AREA FIBER WITH LOW BENDING LOSSES 审中-公开
标题翻译：具有低弯曲损失的大型有效区域纤维
公开(公告)号：WO2014168739A1
公开(公告)日：2014-10-16
申请号：PCT/US2014/030160
申请日：2014-03-17
申请人： CORNING INCORPORATED , BICKHAM, Scott Robertson , MISHRA, Snigdharaj Kumar , OCAMPO, Manuela , PATTERSON, Joan Diana
发明人： BICKHAM, Scott Robertson , MISHRA, Snigdharaj Kumar , OCAMPO, Manuela , PATTERSON, Joan Diana
IPC分类号： G02B6/02
CPC分类号： G02B6/02019 , G02B6/02395 , G02B6/03627
摘要： A fiber having a large effective area at 1550 nm of at least 130 μm 2 and a wire mesh drum microbending loss of less than 0.4 dB/km at a wavelength of 1550 nm. The fibers include a core (14, 16), a cladding (18, 20), and a coating (22, 24). The core may include a central core region (14) and a surrounding first core region (16). The cladding may include a depressed index inner cladding region (18) and an outer cladding region (20). The coating includes a primary coating (22) of less than 190 μιη diameter surrounding and directly adjacent the cladding and having an in situ modulus of less than 0, 2 MPa, and a secondary coating (24) surrounding the primary coating and having an in situ modulus of more than 1,5 GPa. The primary coating may be formed from a primary composition that may include an acrylate monomer or an N-vinyl amide monomer in combination with an acrylate oligomer, where the acrylate oligomer is present at 35 wt % to 55 wt%. The secondary coating may be formed from a secondary composition including one or more acrylate or diacrylate monomers and an acrylate or methacrylate oligomer, where the oligomer is present at 3 wt% or less.
摘要翻译：在1550nm处具有至少130μm2的有效面积大的纤维和在1550nm波长处的小于0.4dB / km的丝网鼓微弯曲损失。纤维包括芯（14,16），包层（18,20）和涂层（22,24）。芯可以包括中心芯区域（14）和周围的第一芯区域（16）。包层可以包括凹陷的折射率内包层区域（18）和外包层区域（20）。涂层包括小于190μm的初级涂层（22）直径围绕并且直接邻近包层并且具有小于0.2MPa的原位模量和围绕初级涂层并且具有大于1.5GPa的原位模量的二次涂层（24）。初级涂层可以由主要组合物形成，其可以包含丙烯酸酯单体或N-乙烯基酰胺单体与丙烯酸酯低聚物的组合，其中丙烯酸酯低聚物以35重量％至55重量％存在。二次涂层可以由包含一种或多种丙烯酸酯或二丙烯酸酯单体和丙烯酸酯或甲基丙烯酸酯低聚物的二次组合物形成，其中低聚物以3重量％以下存在。

2. 发明申请

WO2014168822A1 LOW BEND LOSS OPTICAL FIBER 审中-公开
标题翻译：低弯损失光纤
公开(公告)号：WO2014168822A1
公开(公告)日：2014-10-16
申请号：PCT/US2014/032939
申请日：2014-04-04
申请人： CORNING INCORPORATED , MISHRA, Snigdharaj Kumar , TANDON, Pushkar
发明人： MISHRA, Snigdharaj Kumar , TANDON, Pushkar
IPC分类号： G02B6/028 , G02B6/036
CPC分类号： G02B6/02 , G02B6/02014 , G02B6/0281 , G02B6/03627
摘要： An optical fiber having both low bend loss. The fiber has a central core region (1) having refractive index Δ 1 , an inner cladding region (2) having an outer radius r 2 > 17 microns and refractive index Δ 2 and a second cladding region (3) surrounding the inner cladding region having refractive index Δ 3 . The fiber profile segments may be arranged so that Δ 1 > Δ 3 > Δ 2 . The fiber may exhibit a profile volume, V 2 of the inner cladding region, calculated between r 1 and r 2 , is at least 30 % Δmicron 2 .
摘要翻译：具有低弯曲损耗的光纤。纤维具有折射率＆Dgr; 1的中心纤芯区域（1），具有外半径r2> 17微米的折射率＆Dgr2的内包层区域（2）和围绕内包层的第二包层区域具有折射率＆Dgr的区域; 3。纤维轮廓段可以被布置成使得＆Dgr; 1>＆Dgr; 3>＆Dgr; 2。纤维可能呈现轮廓体积，在r1和r2之间计算的内包层区域的V2至少为30％＆Dgr; 2微米2。

3. 发明申请

WO2021146077A1 REDUCED COATING DIAMETER CHLORINE-DOPED SILICA OPTICAL FIBERS WITH LOW LOSS AND MICROBEND SENSITIVITY 审中-公开
公开(公告)号：WO2021146077A1
公开(公告)日：2021-07-22
申请号：PCT/US2021/012171
申请日：2021-01-05
申请人： CORNING INCORPORATED
发明人： BICKHAM, Scott Robertson , LI, Ming-Jun , MISHRA, Snigdharaj Kumar , TANDON, Pushkar , TANDON, Ruchi Sarda
IPC分类号： C03C25/1065 , G02B6/02 , C09D133/14 , C09D175/04 , C09D4/00 , G02B6/02395 , G02B6/0281 , G02B6/03627 , G02B6/0365
摘要： The optical fiber disclosed has a glass fiber including a core and a cladding. The core comprises silica glass doped with chlorine and having an outer radius r1 between 3.0 microns and 10.0 microns. The cladding has an outer radius r4 not less than 50.0 microns. A primary coating surrounding the cladding has a thickness (r5 - r4) between 5.0 microns and 20.0 microns, and an in situ modulus less than 0.30 MPa. A secondary coating surrounding the primary coating has a thickness (r6 - r5) between 8.0 microns and 30.0 microns, a Young's modulus greater than 1500 MPa, and a normalized puncture load greater than 3.6 x 10-3 g/micron2. The optical fiber has a 22-meter cable cutoff wavelength less than 1530 nm, an attenuation at 1550 nm of less than 0.17 dB/km, and a bending loss at 1550 nm of less than 3.0 dB/turn.

4. 发明申请

WO2021108070A1 OPTICAL FIBER WITH LOW MACROBEND LOSS AT LARGE BEND DIAMETER 审中-公开
公开(公告)号：WO2021108070A1
公开(公告)日：2021-06-03
申请号：PCT/US2020/057882
申请日：2020-10-29
申请人： CORNING INCORPORATED
发明人： HEBGEN, Peter Gottfried , MATTHEWS III, Hazel Benton , MISHRA, Snigdharaj Kumar
IPC分类号： G02B6/036
摘要： The present disclosure provides optical fibers that exhibit low macrobend loss at 1550 nm at bend diameters greater than 40 mm. The relative refractive index profile of the fibers includes a trench cladding region having a trench volume configured to minimize macrobend loss at large bend diameters. The thickness and/or depth of the trench cladding region are controlled to reduce trench volume to a degree consistent with reducing macrobend loss at bend diameters greater than 40 mm. The optical fiber includes an outer cladding region that surrounds and is directly adjacent to the trench cladding region and an optional offset cladding region between the trench cladding region and the core region. In some embodiments, the core region is a segmented core region that includes inner and outer core regions. The low macrobend loss available from the optical fibers makes them particularly suitable for applications in submarine telecommunications systems.

5. 发明申请

WO2018204248A1 LOW BEND LOSS OPTICAL FIBER WITH A GERMANIA DOPED CORE 审中-公开
公开(公告)号：WO2018204248A1
公开(公告)日：2018-11-08
申请号：PCT/US2018/030170
申请日：2018-04-30
申请人： CORNING INCORPORATED
发明人： BOOKBINDER, Dana Craig , LI, Ming-Jun , MISHRA, Snigdharaj Kumar , TANDON, Pushkar
IPC分类号： G02B6/036 , G02B6/028
CPC分类号： G02B6/02219 , G02B6/02266 , G02B6/0281 , G02B6/0286 , G02B6/03633 , G02B6/03644
摘要： A single mode optical fiber including a germania doped silica central core region having outer radius r 1 and refractive index Δ 1 , a maximum refractive index Δ 1 , and 0.32 % ≤ Δ 1max ≤ 0.45 %, and a core alpha profile (Core α ). In various embodiments, the optical fiber also contains a cladding region including: (i) a second inner cladding region or ring region surrounding the first inner cladding region; or (ii) an inner cladding region or pedestal region surrounding the germania doped silica central core region. The corresponding resultant optical fibers exhibit a 22 m cable cutoff less than or equal to 1260 nm, a macrobending loss at 1550 nm of ≤ 0.75 dB/turn on a 20 mm diameter mandrel, a zero dispersion wavelength, λ 0 , of 1300 nm ≤ λ 0 ≤ 1324 nm, and a mode field diameter at 1310 nm of 8.2 microns ≤ MDF 1310 ≤ 9.6 microns.

6. 发明申请

WO2022026305A1 LOW CROSS-TALK MULTICORE OPTICAL FIBER FOR SINGLE MODE OPERATION 审中-公开
公开(公告)号：WO2022026305A1
公开(公告)日：2022-02-03
申请号：PCT/US2021/042894
申请日：2021-07-23
申请人： CORNING INCORPORATED
发明人： MISHRA, Snigdharaj Kumar , TANDON, Pushkar
IPC分类号： G02B6/02 , G02B6/036 , C03B37/012
摘要： A multicore optical fiber (110) comprises a common cladding and a plurality of core portions (C1,C2,C3,C4) disposed in the common cladding. Each of the core portions includes a central axis, a core region extending from the central axis to a radius Γ1, the core region comprising a relative refractive index Δ1, an inner cladding region extending from the radius Γ1 to a radius Γ2, the inner cladding region comprising a relative refractive index Δ2, and a depressed cladding extending from the radius Γ2 to a radius Γ3, the depressed cladding region comprising a relative refractive index Δ3 and a minimum relative refractive index Δ3min. The relative refractive indexes may satisfy Δ1 > Δ2 >Δ3m in. The mode field diameter of each core portion may greater than or equal to 8.2 µm and less than or equal to 9.5 µm.

7. 发明申请

WO2018093451A3 OPTICAL FIBERS HAVING A VARYING CLAD INDEX AND METHODS OF FORMING SAME 审中-公开
公开(公告)号：WO2018093451A3
公开(公告)日：2018-05-24
申请号：PCT/US2017/051138
申请日：2017-09-12
申请人： CORNING INCORPORATED
发明人： BOOKBINDER, Dana Craig , CHLUDZINSKI, Paul Andrew , HARPER, Brian Lee , LI, Ming-Jun , MISHRA, Snigdharaj Kumar , RANEY, Sonya Marie , TANDON, Pushkar
IPC分类号： G02B6/036 , C03B37/014 , C03B37/018 , G02B6/028 , C03B37/025
摘要： An optical fiber with low attenuation and methods of making same are disclosed. The optical fiber has a core, an inner cladding surround the core, and an outer cladding surrounding the inner cladding. The outer cladding is chlorine-doped such that the relative refractive index varies as a function of radius. The radially varying relative refractive index profile of the outer cladding reduces excess stress in the core and inner cladding, which helps lower fiber attenuation while also reducing macrobend and microbend loss. A process of fabricating the optical fiber includes doping an overclad soot layer of a soot preform with chlorine and then removing a portion of the chlorine dopant from an outermost region of the overclad soot layer. The soot preform with the modified chlorine dopant profile is then sintered to form a glass preform, which can then be used for drawing the optical fiber.

8. 发明申请

WO2017003982A2 OPTICAL FIBER WITH LARGE EFFECTIVE AREA AND LOW BENDING LOSS 审中-公开
标题翻译：具有大面积有效面积和低弯曲损失的光纤
公开(公告)号：WO2017003982A2
公开(公告)日：2017-01-05
申请号：PCT/US2016/039711
申请日：2016-06-28
申请人： CORNING INCORPORATED
发明人： BOOKBINDER, Dana Craig , LI, Ming-Jun , MATTHEWS, Hazel Benton III , MISHRA, Snigdharaj Kumar , TANDON, Pushkar
IPC分类号： G02B6/036 , G02B6/02 , C03B37/012
CPC分类号： G02B6/02019 , C03B37/01211 , C03B37/018 , C03B37/01846 , C03B2201/08 , C03B2201/12 , C03B2203/22 , C03C3/06 , C03C13/045 , C03C13/046 , C03C2201/11 , C03C2201/12 , C03C2213/00 , G02B6/02009 , G02B6/02238 , G02B6/02395 , G02B6/03627 , G02B6/0365
摘要： An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.
摘要翻译：光纤有效面积大，弯曲损耗低，衰减小。光纤包括芯，内包层区和外包层区。核心区域包括空间均匀的上升物质，以最小化瑞利散射的低和被配置成提供大的有效面积的相对折射率和半径。内包层区域具有大的沟槽体积以最小化弯曲损耗。芯可以用Cl掺杂，并且内包层区可以掺杂有F.

9. 发明申请

WO2022125607A1 LOW MOAT VOLUME SINGLE MODE ULTRA-LOW LOSS FIBER 审中-公开
公开(公告)号：WO2022125607A1
公开(公告)日：2022-06-16
申请号：PCT/US2021/062312
申请日：2021-12-08
申请人： CORNING INCORPORATED [US]/[US]
发明人： HEBGEN, Peter Gottfried , MATTHEWS, Hazel Benton, III , MISHRA, Snigdharaj Kumar
IPC分类号： G02B6/02 , G02B6/028 , G02B6/036
摘要： Embodiments of the current disclosure include low moat volume single mode ultra-low loss optical fibers (10). A single mode optical fiber includes a first core region (16); a second core region (18) surrounding and directly adjacent to the first core region (16), wherein a volume V of the second core region (18) is less than or equal to 14% Δpm2; a cladding region (20) surrounding the core region; and wherein the optical fiber has a cable cutoff of less than 1260 nm, a mode field diameter at 1310 nm of 8.6 pm to 9.7 pm, a mode field diameter at 1550 nm of 9.9 pm to 11 pm, and an attenuation at 1550 nm of less than or equal to 0.17 dB/km.

10. 发明申请

WO2022035630A1 ULTRA-LOW-LOSS COUPLED-CORE MULTICORE OPTICAL FIBERS 审中-公开
公开(公告)号：WO2022035630A1
公开(公告)日：2022-02-17
申请号：PCT/US2021/044123
申请日：2021-08-02
申请人： CORNING INCORPORATED
发明人： BICKHAM, Scott, Robertson , BOOKBINDER, Dana, Craig , LI, Ming-Jun , MISHRA, Snigdharaj Kumar , TANDON, Pushkar
IPC分类号： G02B6/02 , G02B6/036
摘要： A coupled-core multicore optical fiber has a plurality of cores that are doped with alkali metals or chlorine to achieve low attenuation and a large effective area. The cores may be embedded in a common cladding region that may be fluorine doped. The cores may also be doped with chlorine, either with the alkali metals described above or without the alkali metals.

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