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公开(公告)号：US20230132984A1
公开(公告)日：2023-05-04
申请号：US17974135
申请日：2022-10-26
申请人： Corning Incorporated
发明人： Nikolaos Pantelis Kladias , Ming-Jun Li , Bruce Warren Reding , Pushkar Tandon , Kevin Lee Wasson
IPC分类号： C03B37/025 , C03B37/029
摘要： Optical fiber draw production systems, pressure devices, and methods of fabrication of optical fiber are disclosed. In one embodiment, a method of forming an optical fiber includes heating a preform to draw the optical fiber through a draw furnace, and passing the optical fiber through a pressure device while the optical fiber is still forming, wherein a pressure within the pressure device is greater than an atmospheric pressure.
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2.发明授权公开(公告)号：US11573370B2
公开(公告)日：2023-02-07
申请号：US16970704
申请日：2019-02-19
申请人： CORNING INCORPORATED
发明人： Ming-Jun Li , Daniel Aloysius Nolan
摘要： A quantum communication system that includes a multiphoton entanglement generator, a plurality of photon detector units, and a plurality of optical fiber links. The plurality of photon detector units include a first photon detector unit and a second photon detector unit. The multiphoton entanglement generator is structurally configured to output more than two entangled photons. The plurality of optical fiber links comprise a first optical fiber link optically coupled to the multiphoton entanglement generator and disposed between the multiphoton entanglement generator and the first photon detector unit. The plurality of optical fiber links comprise a second optical fiber link optically coupled to the multiphoton entanglement generator and disposed between the multiphoton entanglement generator and the second photon detector unit. Further, at least one of the plurality of optical fiber links has a core, a cladding, and a scattering region having a plurality of scattering structures.
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公开(公告)号：US20220413220A1
公开(公告)日：2022-12-29
申请号：US17779395
申请日：2020-11-20
申请人： CORNING INCORPORATED
摘要： A process for forming glass planar waveguide structure includes producing or obtaining a fusion drawn glass laminate (10) comprising a core glass layer (10) and a first clad glass layer (14) and a second clad glass layer (16) then removing or thinning portions of at least the second glass clad layer (16) leaving remaining or thicker portions of the second glass clad layer (16), the remaining or thicker portions corresponding to a planar waveguide pattern and resulting in a glass planar waveguide structure.
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公开(公告)号：US11500149B2
公开(公告)日：2022-11-15
申请号：US17236558
申请日：2021-04-21
申请人： CORNING INCORPORATED
发明人： Richard Michael Fiacco , Kenneth Edward Hrdina , Ming-Jun Li , Jeffery Scott Stone , Haitao Zhang
IPC分类号： G02B6/036 , C03B37/014 , C03C13/04
摘要： An optical fiber can include a core comprising silica co-doped with nitrogen and chlorine and an outer cladding surrounding the core. In some aspects, the core can be characterized by an annealing temperature of less than or equal to about 1150° C. and/or the core can include a relative refractive index Δcore in a range of from about 0.15% to about 0.45%.
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公开(公告)号：US11327223B2
公开(公告)日：2022-05-10
申请号：US17215434
申请日：2021-03-29
申请人： CORNING INCORPORATED
发明人： Xin Chen , Kangmei Li , Ming-Jun Li , Anping Liu , Simit Mayank Patel , Jeffery Scott Stone
IPC分类号： G02B6/028 , G02B6/036 , H04B10/2581 , H04B10/50 , H04B10/69
摘要： A multimode optical fiber having a core region. The core region includes silica, has an outer radius r1, and has a maximum relative refractive index of about 1.5% or less. Additionally, the multimode optical fiber is configured to have an effective bandwidth of about 4.7 GHz-Km or greater for an excited portion of the core region that has a diameter greater than 50 microns, the effective bandwidth being at a wavelength that is within a range of between about 800 and about 1370 nm.
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公开(公告)号：US11287568B2
公开(公告)日：2022-03-29
申请号：US17239923
申请日：2021-04-26
申请人： CORNING INCORPORATED
摘要： The wideband multimode co-doped optical fiber has a silica core co-doped with GeO2 and Al2O3. The GeO2 concentration is maximum at the fiber centerline and monotonically decreases radially out to the core radius. The Al2O3 concentration is minimum at the centerline and monotonically increases radially out to maximum concentration at the core radius. The cladding has an inner cladding region of relative refractive index Δ2, an intermediate cladding region having a relative refractive index Δ3, and an outer cladding region having a relative refractive index Δ4, wherein Δ3
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公开(公告)号：US11218226B2
公开(公告)日：2022-01-04
申请号：US16557059
申请日：2019-08-30
申请人： CORNING INCORPORATED
发明人： Ming-Jun Li , Daniel Aloysius Nolan
IPC分类号： H04B10/12 , H04B10/70 , H04B10/2513 , H04B10/2525 , H04B10/2507 , H04L9/08 , H04B10/25
摘要： A quantum communications system includes a quantum key generation system having a photonic quantum bit generator, a dispersion compensating optical fiber link, and a photon detector unit and a communications network having a signal generator, a signal channel, and a signal receiver. The dispersion compensating optical fiber link extends between and optically couples the photonic quantum bit generator and the photon detector unit. Further, the dispersion compensating optical fiber link is structurally configured to induce dispersion at an absolute dispersion rate of about 9 ps/(nm)km or less and induce attenuation at an attenuation rate of about 0.18 dB/Km or less such that the quantum key bit information of a plurality of photons output by the one or more photonic quantum bit generators is receivable at the photon detector unit at a bit rate of at least about 10 Gbit/sec.
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公开(公告)号：US20210399810A1
公开(公告)日：2021-12-23
申请号：US17297029
申请日：2019-11-12
申请人： CORNING INCORPORATED
发明人： Ming-Jun Li , Daniel Aloysius Nolan
IPC分类号： H04B10/70 , G02B6/02 , H04B10/2513
摘要： A quantum communications system includes a quantum key generation system having a photonic quantum bit generator, a low loss dispersion limiting fiber having a length L, for example greater than 200 km, and a photon detector unit and a communications network having a signal generator, a signal channel, and a signal receiver. The low loss dispersion limiting fiber extends between and optically couples the photonic quantum bit generator and the photon detector unit. Further, the low loss dispersion limiting fiber is structurally configured to limit dispersion at an absolute dispersion rate of about 9 ps/(nm)km or less, and preferably 0.5 ps/(nm)km or less, and induce attenuation at an attenuation rate of about 0.175 dB/km or less such that the quantum key bit information of a plurality of photons output by the one or more photonic quantum bit generators is receivable at the photon detector unit at a bit rate of at least 10 Gbit/sec.
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公开(公告)号：US20210356655A1
公开(公告)日：2021-11-18
申请号：US17308395
申请日：2021-05-05
申请人： CORNING INCORPORATED
摘要： The optical fibers disclosed is a single mode optical fiber having a core region and a cladding region surrounding and directly adjacent to the core region. The core region can have a radius r1 in a range from 3.0 microns to 6.0 microns and a core volume V1 less than 6.0%-micron2. The cladding region can include a first outer cladding region and a second outer cladding region surrounding and directly adjacent to the first outer cladding region. The first outer cladding region can have a radius r4a, the second outer cladding region can have a radius r4b less than or equal to 65 microns and comprising silica based glass doped with titania. The disclosed single mode optical fiber can have a fiber cutoff wavelength λCF less than 1530 nm.
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公开(公告)号：US11156770B2
公开(公告)日：2021-10-26
申请号：US16829460
申请日：2020-03-25
申请人： CORNING INCORPORATED
发明人： Ming-Jun Li , Jeffery Scott Stone
摘要： Multimode optical fibers are disclosed herein. In some embodiment disclosed herein, a multimode optical fiber having a bandwidth of greater than 2 GHz·km includes: a glass matrix having a front endface, a back endface, a length (L), a refractive index n20 and a central axis (AC); and a plurality of cores arranged within the glass matrix, wherein the plurality of cores run generally parallel to the central axis between the front and back endfaces and having respective refractive indices n50, wherein n50>n20, wherein the glass matrix serves as a common cladding for the plurality of cores so that each core and the common cladding define a waveguide, wherein each core is a single mode at an operating wavelength; and wherein any two cores have an center-to-center spacing s of 3 μm to 20 μm and a coupling coefficient of greater than 10 m−1 but less than 200 m−1.
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