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1. 发明申请

WO2020171942A1 MULTIMODE OPTICAL FIBER WITH REDUCED CLADDING THICKNESS 审中-公开
公开(公告)号：WO2020171942A1
公开(公告)日：2020-08-27
申请号：PCT/US2020/016496
申请日：2020-02-04
申请人： CORNING INCORPORATED
发明人： BICKHAM, Scott Robertson , TANDON, Pushkar , TANDON, Ruchi
IPC分类号： G02B6/02 , G02B6/028 , G02B6/036
摘要： The present description provides multimode optical fibers with reduced cladding thickness. The optical fibers include a reduced-diameter glass fiber and/or reduced-thickness coatings. The overall diameter of the optical fibers is less than 210 µm and examples with diameters less than 160 µm are presented. Puncture resistant secondary coatings enable thinning of the secondary coating without compromising protection of the glass fiber. The optical fibers are suitable for data center applications and features high modal bandwidth, low attenuation, low microbending sensitivity, and puncture resistance in a compact form factor.

2. 发明申请

WO2019213367A1 FIBER COATINGS WITH LOW PULLOUT FORCE 审中-公开
公开(公告)号：WO2019213367A1
公开(公告)日：2019-11-07
申请号：PCT/US2019/030352
申请日：2019-05-02
申请人： CORNING INCORPORATED
发明人： BOTELHO, John, W , CHIEN, Ching-Kee , CUMMINGS, Jill, Ann , TANDON, Pushkar , TANDON, Ruchi
IPC分类号： C03C25/285 , C09D133/00
摘要： Fiber coatings with low Young's modulus, low fiber pullout force for fibers in the as-drawn state, and small time-dependent increases in pullout force as the fiber ages. The fiber coatings are cured products of coating compositions that include an oligomer formed from an isocyanate, a hydroxy acrylate compound and a polyol. The oligomer includes a polyether urethane acrylate and a di-adduct compound. The reaction mixture used to form the oligomer includes a molar ratio of isocyanate:hydroxy acrylate:polyol of n:m:p, where when p is 2, n is in the range from 3.0 to 5.0 and m is in the range from 1.50n - 3 to 2.50n - 5. Control of the n:m:p ratio leads to compositions that, when cured, provide coatings and cured products having low Young's modulus, low pullout force on glass, and weak variations with time as the fiber ages.

3. 发明申请

WO2019204220A1 OPTICAL FIBER COATING DIE ASSEMBLY HAVING INLET TUBE 审中-公开
公开(公告)号：WO2019204220A1
公开(公告)日：2019-10-24
申请号：PCT/US2019/027514
申请日：2019-04-15
申请人： CORNING INCORPORATED
发明人： BOOKBINDER, Dana Craig , STAINER, Darren Andrew , TANDON, Pushkar , TANDON, Ruchi , WAKEFIELD, Bryan William
IPC分类号： G02B6/44 , C03C25/18
摘要： An optical fiber coating die assembly is provided. The optical fiber coating die assembly includes a housing defining a guide chamber having an inlet for receiving optical fiber and an outlet, a guide die located at the outlet of the guide chamber, and a sizing die. The optical fiber coating die assembly also includes a coating applicator disposed between the guide die and the sizing die, and a tube operatively coupled to the inlet of the guide chamber and axially aligned with the chamber to receive the optical fiber fed into the guide chamber and provide a barrier to air flow.

4. 发明申请

WO2018005329A1 FIBER MARKING WITH OPTICAL BRIGHTENERS 审中-公开
标题翻译：光学增白剂的纤维标记
公开(公告)号：WO2018005329A1
公开(公告)日：2018-01-04
申请号：PCT/US2017/039208
申请日：2017-06-26
申请人： CORNING INCORPORATED
发明人： KOUZMINA, Inna Igorevna , ROBERTS, Clifton Carl , TANDON, Ruchi
IPC分类号： G02B6/44 , B41M5/00 , B41J3/407 , C09D11/101 , H01B13/34
CPC分类号： G02B6/4482 , C09D11/037 , C09D11/101 , G02B6/4403 , G02B6/441 , G02B6/4411 , G02B6/447
摘要： An optical fiber having an ink layer that includes an optical brightener is described. The optical brightener is a marker that permits identification of the fiber. The ink layer may also include a pigment, where either or both of the pigment and optical brightener may function as a marker for identifying the fiber. Bundles of two or more optical fibers, each of which includes an ink layer containing an optical brightener, are also described.
摘要翻译：描述了具有包含荧光增白剂的油墨层的光纤。荧光增白剂是一种可以识别纤维的标记。油墨层还可以包括颜料，其中颜料和荧光增白剂中的任一者或两者可以用作识别纤维的标记。还描述了两根或更多根光纤束，每根光纤包括含荧光增白剂的墨层。

5. 发明申请

WO2018089290A1 FIBER COATINGS WITH LOW MODULUS AND HIGH CRITICAL STRESS 审中-公开
标题翻译：具有低模量和高临界应力的纤维涂层
公开(公告)号：WO2018089290A1
公开(公告)日：2018-05-17
申请号：PCT/US2017/060112
申请日：2017-11-06
申请人： CORNING INCORPORATED
发明人： CHEN, Yangbin , CHIEN, Ching-Kee , DEROSA, Michael Edward , KOUZMINA, Inna Igorevna , TANDON, Pushkar , TANDON, Ruchi
IPC分类号： C08G18/48 , C03C25/326 , C08G18/67 , C08G18/75 , C09D175/16 , G02B1/14
摘要： Fiber coatings with low Young's modulus, high tear strength, and/or high critical stress are realized with coating compositions that include an oligomeric material formed from an isocyanate, a hydroxy acrylate compound and a polyol. The oligomeric material includes a polyether urethane acrylate and a di-adduct compound. The reaction mixture used to form the oligomeric material includes a molar ratio of isocyanate:hydroxy acrylate:polyol of n:m:p, where when p is 2, n is in the range from 3.0 to 5.0 and m is in the range from 1.50n - 3 to 2.50n - 5. Control of the n:m:p ratio leads to compositions that, when cured, provide coatings and cured products having high critical stress, high tear strength, and a high ratio of tear strength to Young's modulus.
摘要翻译：使用包含由异氰酸酯，羟基丙烯酸酯化合物和多元醇形成的低聚物材料的涂料组合物实现具有低杨氏模量，高撕裂强度和/或高临界应力的纤维涂层。低聚物材料包括聚醚聚氨酯丙烯酸酯和二加合物化合物。用于形成低聚物材料的反应混合物包括n:m:p的异氰酸酯：羟基丙烯酸酯：多元醇的摩尔比，其中当p为2时，n为3.0-5.0，m为1.50 n-3至2.50n-5。控制n:m:p比导致组合物在固化时提供具有高临界应力，高撕裂强度和高撕裂强度与杨氏模量比的涂层和固化产品

6. 发明申请

WO2018005580A1 COATED LOW LOSS MULTIMODE OPTICAL FIBER WITH SMALL DIAMETER 审中-公开
标题翻译：带小直径涂层的低损耗多模光纤
公开(公告)号：WO2018005580A1
公开(公告)日：2018-01-04
申请号：PCT/US2017/039623
申请日：2017-06-28
申请人： CORNING INCORPORATED
发明人： BICKHAM, Scott Robertson , CHIEN, Ching-Kee , TANDON, Ruchi
IPC分类号： G02B6/028
摘要： A multi-purpose optical fiber with coating is provided. The optical fiber can function as a transmission fiber (120) or as a coupling fiber (140,145) for optical data links that features low coupling loss to silicon photonics lasers, VCSELs, single mode transmission fibers, multimode transmission fibers, and high speed receivers. The fiber includes a core, an optional inner cladding region, a depressed index cladding region, an outer cladding region, and a coating. The relative refractive index profile of the coupling fiber includes a small-radius core region with a profile and a depressed index cladding region that facilitates low bending loss and high bandwidth. The coating thickness and overall diameter of the fiber is small.
摘要翻译：提供带涂层的多用途光纤。光纤可以用作传输光纤（120）或用作光学数据链路的耦合光纤（140,145），其特征在于对硅光子激光器，VCSEL，单模传输光纤，多模传输光纤和高速接收器具有低耦合损耗。光纤包括芯部，可选的内部包层区域，凹陷的折射率包层区域，外部包层区域和涂层。耦合光纤的相对折射率分布包括具有简化和小带宽折射损耗和高带宽的低折射率包层区域的小半径纤芯区域。纤维的涂层厚度和整体直径很小。

7. 发明申请

WO2021021421A1 HIGH SPEED DRAW OPTICAL FIBER COATING SYSTEM AND METHOD 审中-公开
公开(公告)号：WO2021021421A1
公开(公告)日：2021-02-04
申请号：PCT/US2020/041753
申请日：2020-07-13
申请人： CORNING INCORPORATED
发明人： BOOKBINDER, Dana Craig , TANDON, Pushkar , TANDON, Ruchi
IPC分类号： C03C25/50 , C03C25/6226 , C03C25/1065
摘要： An optical fiber draw system and method of coating an optical fiber. The system includes a furnace for heating an optical fiber preform, a draw assembly for drawing the optical fiber at a draw speed greater than 50 meters per second, a first coating applicator for applying a first coating onto the fiber, and a first curing assembly comprising a first plurality of light sources comprising light-emitting diodes for partially curing the first coating. The optical fiber draw system also includes a second coating applicator for applying a second coating onto the fiber on top of the first coating, and a second curing system comprising a second plurality of light sources for curing the second coating, wherein the first coating is further cured in the range of 15-50 percent after leaving the first curing assembly.

8. 发明申请

WO2020150037A1 OPTICAL FIBER CABLE WITH HIGH FIBER COUNT 审中-公开
公开(公告)号：WO2020150037A1
公开(公告)日：2020-07-23
申请号：PCT/US2020/012472
申请日：2020-01-07
申请人： CORNING INCORPORATED
发明人： BICKHAM, Scott Robertson , LI, Ming-Jun , TANDON, Pushkar , TANDON, Ruchi
IPC分类号： G02B6/02 , G02B6/036
摘要： The present disclosure provides optical fibers (10) with an impact-resistant coating system. The fibers feature low attenuation. The coating system includes a primary coating (16) and a secondary coating (18). The primary coating and secondary coating have reduced thickness to provide low-diameter fibers without sacrificing protection. The primary coating has high tear strength and is resistant to damage caused by mechanical force. The secondary coating has high puncture resistance. The outer diameter of the optical fiber is less than or equal to 190 μm.

9. 发明申请

WO2021091527A1 OPTICAL FIBERS WITH THIN COATINGS 审中-公开
公开(公告)号：WO2021091527A1
公开(公告)日：2021-05-14
申请号：PCT/US2019/059728
申请日：2019-11-04
申请人： CORNING INCORPORATED
发明人： CHIEN, Ching-Kee , TANDON, Pushkar , TANDON, Ruchi
IPC分类号： C03C25/1065 , G02B6/02
摘要： An optical fiber includes an outer diameter less than 220 µm, a glass fiber that includes a glass core and a glass cladding, a primary coating, and a secondary coating. The glass cladding surrounds and is in direct contact with the glass core. The primary coating surrounds and is in direct contact with the glass fiber. The primary coating can have a Young's modulus less than 0.5 MPa and a thickness less than 30.0 µm. The secondary coating surrounds and is in direct contact with the primary coating. The secondary coating can have a thickness less than 27.5 µm. A pullout force of the optical fiber can be less than a predetermined threshold when in an as-drawn state. The pullout force may increase by less than a factor of 2.0 upon aging the primary and secondary coatings on the glass fiber for at least 60 days.

10. 发明申请

WO2020171943A1 PUNCTURE-RESISTANT REDUCED-DIAMETER MULTIMODE OPTICAL FIBER 审中-公开
公开(公告)号：WO2020171943A1
公开(公告)日：2020-08-27
申请号：PCT/US2020/016498
申请日：2020-02-04
申请人： CORNING INCORPORATED
发明人： BICKHAM, Scott Robertson , CHEN, Yangbin , CHIEN, Ching-Kee , LI, Ming-Jun , TANDON, Pushkar , TANDON, Ruchi
IPC分类号： G02B6/02 , G02B6/028 , G02B6/036
摘要： The present description provides reduced-diameter multimode optical fibers. The optical fibers include a reduced-diameter glass fiber and/or reduced-thickness coatings. The overall diameter of the optical fibers is less than 210 µm and examples with diameters less than 160 µm are presented. Puncture resistant secondary coatings enable thinning of the secondary coating without compromising protection of the glass fiber. The optical fibers are suitable for data center applications and features high modal bandwidth, low attenuation, low microbending sensitivity, and puncture resistance in a compact form factor.

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