公开(公告)号：US11125938B2

公开(公告)日：2021-09-21

申请号：US16741993

申请日：2020-01-14

申请人： Corning Incorporated

发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC分类号： G02B6/36 ,  G02B6/028 ,  G02B6/036 ,  G02B6/02

摘要： An optical fiber includes (i) a chlorine doped silica based core having a core alpha (Coreα)≥4, a radius r1, and a maximum refractive index delta Δ1max % and (ii) a cladding surrounding the core. The cladding surrounding the core includes a) a first inner cladding region adjacent to and in contact with the core and having a refractive index delta Δ2, a radius r2, and a minimum refractive index delta Δ2min such that Δ2min

公开(公告)号：US11067744B2

公开(公告)日：2021-07-20

申请号：US16193919

申请日：2018-11-16

申请人： Corning Incorporated

发明人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC分类号： G02B6/028 ,  G02B6/02 ,  G02B6/036

摘要： A single mode optical fiber, comprising: (i) a silica based core having a step refractive index profile with an alpha of greater than 10, a relative refractive index Δ1MAX, and an outer radius r1, wherein 6.25 microns>r1≥4.75 microns, the core further comprising Cl, Ge, or a combination thereof; (ii) a first cladding region in contact with and surrounding the core, the first cladding region having a relative refractive index Δ2MIN, an inner radius r1, and an outer radius r2, wherein r2

公开(公告)号：US20210214267A1

公开(公告)日：2021-07-15

申请号：US15734078

申请日：2019-05-31

申请人： Corning Incorporated

发明人： Yunfeng Gu ,  Nicolas LeBlond ,  Ming-Jun Li ,  Jeffery Scott Stone ,  Haitao Zhang

IPC分类号： C03C3/06 ,  C03C23/00

摘要： A silica-based substrate includes a glass phase and a dispersed phase having carbon, such that the silica-based substrate has a thickness of at least 10 gm. Also disclosed is a method of forming a silica-based substrate, the method including contacting a porous silica soot preform with an organic solution having at least one hydrocarbon precursor to form a doped silica soot preform and heating the doped silica soot preform in an inert atmosphere to form the silica-based substrate.

公开(公告)号：US20210181408A1

公开(公告)日：2021-06-17

申请号：US17112084

申请日：2020-12-04

申请人： CORNING INCORPORATED

发明人： Scott Robertson Bickham ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC分类号： G02B6/02 ,  G02B6/028 ,  G02B6/036

摘要： A multicore optical fiber includes a first core, a second core, and a common cladding. The first core includes silica and greater than 3 wt % chlorine, a first core centerline, a relative refractive index Δ1MAX, and an outer radius r1. The second core includes silica and greater than 3 wt % chlorine, a second core centerline, a relative refractive index Δ2MAX, and an outer radius r2. A spacing between the first core centerline and the second core centerline is at least 28 micrometers and a crosstalk between the first core and the second core is ≤−30 dB, as measured for a 100 km length of the multicore optical fiber operating at a wavelength of 1550 nm.

公开(公告)号：US11012154B2

公开(公告)日：2021-05-18

申请号：US16905117

申请日：2020-06-18

申请人： CORNING INCORPORATED

发明人： Xin Chen ,  Kangmei Li ,  Ming-Jun Li

IPC分类号： H04B10/079 ,  G01M11/00 ,  H04B10/25 ,  H04B10/54

摘要： The present disclosure is directed to systems and methods for calculating a modal time delay and a modal bandwidth. For example, a method may include: transmitting an intensity-modulated light through a mode conditioner to generate a mode-conditioned intensity-modulated light; transmitting the mode-conditioned intensity-modulated light through an optical fiber under test (FUT) to excite a plurality of modes of the optical FUT; converting the mode-conditioned intensity-modulated light transmitted through the optical FUT into an electrical signal; measuring, based on the electrical signal, a transfer function or a complex transfer function of the optical FUT based on at least on one pair of the plurality of modes; calculating a modal delay time of the optical FUT based on the transfer function or the complex transfer function; and calculating a modal bandwidth of the optical FUT based on the modal delay time, the modal bandwidth being calculated for any given launch conditions of the plurality of modes.

公开(公告)号：US20200379171A1

公开(公告)日：2020-12-03

申请号：US16970704

申请日：2019-02-19

申请人： CORNING INCORPORATED

发明人： Ming-Jun Li ,  Daniel Aloysius Nolan

IPC分类号： G02B6/036 ,  G02B6/43 ,  G02B6/42 ,  G02F1/35 ,  G02F1/39 ,  H04B10/70 ,  H04B10/25

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.

公开(公告)号：US20200088935A1

公开(公告)日：2020-03-19

申请号：US16561394

申请日：2019-09-05

申请人： CORNING INCORPORATED

发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

IPC分类号： G02B6/028 ,  G02B6/036

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

公开(公告)号：US10564349B2

公开(公告)日：2020-02-18

申请号：US16193866

申请日：2018-11-16

申请人： Corning Incorporated

发明人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC分类号： G02B6/028 ,  G02B6/036 ,  G02B6/02

摘要： A single mode optical fiber, comprising: (i) a silica based core having a graded refractive index profile with an alpha of less than 5, a relative refractive index Δ1max, and an outer radius r1, wherein 10 microns>r1≥6.5 microns, the core comprising Cl, Ge, or a combination thereof; (ii) a first cladding region in contact with and surrounding the core, the first cladding region having a relative refractive index Δ2min, an inner radius r1, and an outer radius r2, wherein r2 than 9 microns, a zero dispersion wavelength

公开(公告)号：US20200007242A1

公开(公告)日：2020-01-02

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： H04B10/70 ,  H04B10/2525 ,  H04B10/2513 ,  H04L9/08 ,  H04B10/2507

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.

公开(公告)号：US20190243063A1

公开(公告)日：2019-08-08

申请号：US16260515

申请日：2019-01-29

申请人： Corning Incorporated

发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

IPC分类号： G02B6/028 ,  G02B6/036

CPC分类号： G02B6/0281 ,  G02B6/02266 ,  G02B6/03627 ,  G02B6/0365

摘要： A single mode optical fiber, comprising: A single mode optical fiber, comprising: (i) a silica based core having a refractive index profile with an alpha (α) between 1.8 and 200, a relative refractive index Δ1max %, and an outer radius r1, wherein 7 microns >r1≥4.5 microns, the core further comprising silica doped with chlorine, wherein the maximum chlorine concentration in the core is greater than 0.5 wt %; and wherein 1.40 Δ4 %.