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公开(公告)号：US20230110703A1
公开(公告)日：2023-04-13
申请号：US17956219
申请日：2022-09-29
IPC分类号： G02B6/38
摘要： The present disclosure relates to a connector assembly and a corresponding method to cure bonding agent or adhesive in the connector assembly with light source(s) and without the addition of heat. Disclosed herein are various embodiments of bonding agents for use in adhering optical fibers to ferrules within optical connectors, and the methods for use thereof. Various embodiments of the bonding agents disclosed herein may have other desirable properties for the process of securing an optical fiber within a ferrule, such as, but not limited to, shortened process cycle time. Embodiments herein address these needs by monitoring the change in refractive index of a photocurable bonding agent at the interface between the photocurable bonding agent and a substrate or optical fiber, which is referred to as “back reflectance.” In particular, the methods described herein utilize back reflectance techniques to cure the photocurable material or bonding agent.
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公开(公告)号：US20230049598A1
公开(公告)日：2023-02-16
申请号：US17867766
申请日：2022-07-19
发明人： Xiaole Cheng
摘要： Generally, disclosed herein are various embodiments of bonding agents for use in adhering optical fibers to ferrules within optical connectors, and the methods for use thereof. The various embodiments of bonding agents described herein may provide desirable properties, such as, but not limited to, high adhesion strength and/or improved performance following environmental aging. Various embodiments of the bonding agents disclosed herein may also have other desirable properties for the process of securing an optical fiber within a ferrule, such as, but not limited to, shortened process cycle time.
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公开(公告)号：US20220299722A1
公开(公告)日：2022-09-22
申请号：US17834119
申请日：2022-06-07
发明人： Xiaole Cheng , Michael John Gimblet
IPC分类号： G02B6/44
摘要： Embodiments of an optical fiber cable are provided. The optical fiber cable includes at least one optical fiber, a buffer tube surrounding the at least one optical fiber, and at least one tensile element wound around the buffer tube. The at least one tensile element has a laylength of at least 200 mm. The optical fiber cable also includes an exterior jacket surrounding the tensile element. The exterior jacket is made up of at least one polyolefin, at least one thermoplastic elastomer, and at least one high aspect ratio inorganic filler. Further, the exterior jacket has an averaged coefficient of thermal expansion of no more than 120 (10−6) m/mK.
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公开(公告)号：US11204473B2
公开(公告)日：2021-12-21
申请号：US16891604
申请日：2020-06-03
发明人： Xiaole Cheng , Jason Clay Lail
IPC分类号： G02B6/44
摘要： An optical fiber drop cable. The optical fiber drop cable includes at least one optical fiber and at least one inner tensile element wound around the at least one optical fiber having a laylength of at least 200 mm. The optical fiber drop cable also includes an interior jacket disposed around the at least one inner tensile element and an exterior jacket having an inner surface and an outer surface. The optical fiber drop cable further includes at least one outer tensile element disposed between the interior jacket and the outer surface of the exterior jacket. Each of the at least one outer tensile element has a laylength of at least 1 m. The exterior jacket includes at least one polyolefin, at least one thermoplastic elastomer, and at least one high aspect ratio inorganic filler. The exterior jacket has an averaged coefficient of thermal expansion of no more than 120(10−6) m/mK.
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公开(公告)号：US20200270527A1
公开(公告)日：2020-08-27
申请号：US15930566
申请日：2020-05-13
发明人： Xiaole Cheng , Edward John Fewkes , Emanuela Gallo , Dayue Jiang , Natalya Vyacheslavovna Zaytseva
摘要： Embodiments of a flame retardant composition are provided. The composition includes from 55% to 85% by weight of a blended matrix and from 15% to 45% by weight of a flame retardant package distributed within the blended matrix. The blended matrix includes a polyolefin component and a nitrogen-containing polymer component. In particular, the nitrogen-containing polymer component has a melting temperature of less than 240° C. The flame retardant package includes an acid source, a carbon source, a polyoxometalate ionic liquid, and a synergist. The flame retardant composition can be utilized in cables, such as fiber optic cables.
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公开(公告)号：US10663682B2
公开(公告)日：2020-05-26
申请号：US16177955
申请日：2018-11-01
发明人： Xiaole Cheng , Michael John Gimblet
IPC分类号： G02B6/44
摘要： Embodiments of an optical fiber cable are provided. The optical fiber cable includes at least one optical fiber, a buffer tube surrounding the at least one optical fiber, and at least one tensile element wound around the buffer tube. The at least one tensile element has a laylength of at least 200 mm. The optical fiber cable also includes an exterior jacket surrounding the tensile element. The exterior jacket is made up of at least one polyolefin, at least one thermoplastic elastomer, and at least one high aspect ratio inorganic filler. Further, the exterior jacket has an averaged coefficient of thermal expansion of no more than 120(10−6) m/mK.
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公开(公告)号：US11880083B2
公开(公告)日：2024-01-23
申请号：US18084857
申请日：2022-12-20
IPC分类号： G02B6/44
CPC分类号： G02B6/4486 , G02B6/448
摘要： Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner jacket surface and an outer jacket surface. The outer jacket surface is an outermost surface of the optical fiber cable, and the inner jacket surface defines an internal jacket bore. The optical fiber cable also includes at least one subunit disposed within the internal jacket bore. Each of the at least one subunit includes a foamed tube having an inner subunit surface and an outer subunit surface. The inner subunit surface defines a central subunit bore. Each of the at least one subunit also includes a stack of at least two optical fiber ribbons disposed in the central subunit bore of the foamed tube. Each of the at least two optical fiber ribbons comprising at least two optical fibers. The stack occupies from 85%-95% of a cross-sectional area of the central subunit bore such that the central subunit bore provides from 5% to 15% of free space around the stack along at least a portion of a length of the foamed tube.
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公开(公告)号：US20230118149A1
公开(公告)日：2023-04-20
申请号：US18084857
申请日：2022-12-20
IPC分类号： G02B6/44
摘要： Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner jacket surface and an outer jacket surface. The outer jacket surface is an outermost surface of the optical fiber cable, and the inner jacket surface defines an internal jacket bore. The optical fiber cable also includes at least one subunit disposed within the internal jacket bore. Each of the at least one subunit includes a foamed tube having an inner subunit surface and an outer subunit surface. The inner subunit surface defines a central subunit bore. Each of the at least one subunit also includes a stack of at least two optical fiber ribbons disposed in the central subunit bore of the foamed tube. Each of the at least two optical fiber ribbons comprising at least two optical fibers. The stack occupies from 85%-95% of a cross-sectional area of the central subunit bore such that the central subunit bore provides from 5% to 15% of free space around the stack along at least a portion of a length of the foamed tube.
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公开(公告)号：US20220179161A1
公开(公告)日：2022-06-09
申请号：US17677199
申请日：2022-02-22
摘要： Embodiments of an optical fiber cable configured for installation in a roadbed are provided. The optical fiber cable includes an optical fiber, a cable jacket surrounding the optical fiber, and an upjacket surrounding the cable jacket. The upjacket does not leach a chemical or chemicals into the roadbed that soften the roadbed. Also provided are embodiments of a method of producing an optical fiber cable configured for installation in a roadbed. Further, embodiments of a method of deploying an optical fiber cable into a roadbed are provided. The method involves the steps of forming a channel in the roadbed, inserting an optical fiber cable into the channel, and closing the channel so as to bury the optical fiber cable in the roadbed.
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公开(公告)号：US11934023B2
公开(公告)日：2024-03-19
申请号：US17498874
申请日：2021-10-12
发明人： Ryan Thomas Adams , Bradley Jerome Blazer , Anne Germaine Bringuier , Xiaole Cheng , Sergey Vladimirovich Chernykh , John Richard Jacks , Rebecca Elizabeth Sistare
CPC分类号： G02B6/443 , C08J9/0061 , C08L23/06 , C08L23/16 , C08J2205/044 , C08J2205/052 , C08J2323/06 , C08J2323/16 , C08J2423/06 , C08J2423/16 , C08L2203/14 , C08L2205/025 , C08L2205/03 , C08L2207/04 , C08L2207/066
摘要： Embodiments of the disclosure relate to an optical fiber cable having at least one optical fiber, a cable jacket, and a foam layer. The cable jacket has an inner surface and an outer surface. The outer surface is an outermost surface of the optical fiber cable, and the inner surface is disposed around the at least one optical fiber. The foam layer is disposed between the at least one optical fiber and the cable jacket. The foam layer includes a polymer component having from 30% to 100% by weight of a polyolefin elastomer (POE) or thermoplastic elastomer (TPE) and from 0% to 70% by weight of low density polyethylene (LDPE). The foam layer has a closed-cell morphology having pores with an average effective circle diameter of 10 μm to 500 μm. Further, the expansion ratio of the foam layer is at least 50%.
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