公开(公告)号：US11828980B2

公开(公告)日：2023-11-28

申请号：US17190833

申请日：2021-03-03

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon ,  Aramais Robert Zakharian

IPC: G02B6/02 ,  C03C25/106 ,  G02B6/028 ,  G02B6/44

CPC classification number: G02B6/02395 ,  C03C25/106 ,  G02B6/0288 ,  G02B6/4403

Abstract: A multicore optical fiber is provided that includes a first core with silica glass doped with chlorine and/or an alkali metal, a first inner cladding surrounding the first core, and a first outer cladding surrounding the first inner cladding and having a first trench region having a volume of about 30%Δ-micron2 or greater. The multicore optical fiber also includes a second core with silica glass doped with chlorine and/or an alkali metal, a second inner cladding surrounding the second core, and a second outer cladding surrounding the second inner cladding and having a second trench region having a volume of about 30%Δ-micron2 or greater. Additionally, a common cladding surrounds the first core and the second core, and the first core and the second core each have an effective area at 1550 nm of about 100 micron2 or less.

公开(公告)号：US20230335966A1

公开(公告)日：2023-10-19

申请号：US18127399

申请日：2023-03-28

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Pushkar Tandon

IPC: H01S3/067

CPC classification number: H01S3/06733 ,  H01S3/06716

Abstract: An amplifying optical fiber includes a common cladding comprising a radius defining a glass portion of the amplifying optical fiber and having a relative refractive index Δ4. At least one waveguide extends through the common cladding The at least one waveguide includes a core region, an inner cladding region encircling and directly contacting the core region, and a depressed cladding region encircling and directly contacting the inner cladding region. The core region includes from greater than or equal to about 500 ppm and less than or equal to about 10,000 ppm Er2O3 and has core maximum relative refractive index Δ1max. The inner cladding region includes an inner cladding relative refractive index Δ2. The depressed cladding region includes a minimum depressed relative refractive index Δ3min such that Δ1max>Δ2>Δ3min and Δ4>Δ3min.

公开(公告)号：US20230121772A1

公开(公告)日：2023-04-20

申请号：US17965845

申请日：2022-10-14

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Steven Bruce Dawes ,  Alexandra Lai Ching Kao Andrews Mitchell ,  Steven Alvin Tietje ,  Matthew Artus Tuggle

IPC: H01S3/067

Abstract: A method of fabricating an optical fiber, the method including providing a core portion including a doped portion having greater than or equal to 1.6 wt. % of a halide dopant and eliminating seed precursor sites at an exterior surface of the core portion, the seed precursor sites forming seeds in the optical fiber, wherein the eliminating the seed precursor sites includes one or more of: (i) fabricating the core portion by densifying an exterior portion of a silica soot body prior to exposing the silica soot body to the halide dopant, and (ii) exposing the exterior surface of the core portion to a reactive etchant. The method further including forming an optical fiber preform by applying cladding material to the exterior surface of the core portion and drawing the fiber preform into the optical fiber.

公开(公告)号：US20220283362A1

公开(公告)日：2022-09-08

申请号：US17670941

申请日：2022-02-14

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Pushkar Tandon

IPC: G02B6/02

Abstract: A multicore optical fiber includes an inner glass region having a plurality of core regions surrounded by a common outer cladding, the inner glass region further having at least one marker and an outer diameter in the range of 120 microns and 130 microns, wherein each core region is comprised of a germania-doped silica core and a fluorine-doped silica trench, wherein the trench volume of the fluorine-doped silica trench is greater than 50% Δ microns2. The fiber has an outer coating layer surrounding the inner glass region, the outer coating layer having a primary coating layer and a secondary coating layer with a diameter of the secondary coating layer equal to or less than 200 microns, wherein each core region has a mode field diameter greater than 8.2 microns at 1310 nm, a cable cutoff wavelength of less than 1260 nm, and zero dispersion wavelength of less than 1335 nm.

公开(公告)号：US20210356661A1

公开(公告)日：2021-11-18

申请号：US17316292

申请日：2021-05-10

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Scott Robertson Bickham ,  Pushkar Tandon ,  Ruchi Sarda Tandon ,  Bin Yang

IPC: G02B6/12 ,  G02B6/02 ,  C03C13/04 ,  C03C25/105 ,  C08G18/32 ,  C08F22/14 ,  C08F22/10

Abstract: A disclosed multimode optical fiber comprises a core and a cladding surrounding the core. The core has an outer radius r1 in between 20 μm and 30 μm. The cladding includes a first outer cladding region having an outer radius r4a and a second outer cladding region having an outer radius r4b less than or equal to 45 μm. The second outer cladding region comprises silica-based glass doped with titania. The optical fiber further includes a primary coating with an outer radius r5 less than or equal to 80 μm, and a thickness (r5−r4) less than or equal to 30 μm. The optical fiber further includes a secondary coating with an outer radius r6 less than or equal to 100 μm. The secondary coating has a thickness (r6−r5) less than or equal to 30 μm, and a normalized puncture load greater than 3.6×10−3 g/micron2.

公开(公告)号：US20170146715A1

公开(公告)日：2017-05-25

申请号：US15358232

申请日：2016-11-22

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Trista Nicole Hesch ,  Stephan Lvovich Logunov ,  Manuela Ocampo

IPC: F21V8/00 ,  G02B6/036

CPC classification number: G02B6/001 ,  G02B6/03694

Abstract: A light-diffusing optical fiber that provides a symmetric intensity distribution of forward and backward scattered light is described. The fiber includes a secondary coating that contains scattering centers. Control of the thickness of the secondary coating and concentration of scattering centers provides control over the distribution of scattered intensity. More symmetric distributions of scattered light intensity are realized by increasing the thickness of the secondary coating and/or the concentration of scattering centers in the secondary coating. Representative scattering centers include oxide nanoparticles.

公开(公告)号：US20160116660A1

公开(公告)日：2016-04-28

申请号：US14919195

申请日：2015-10-21

Applicant: Corning Incorporated

Inventor： Seldon David Benjamin ,  Kevin Wallace Bennett

IPC: F21V8/00 ,  G02B6/036 ,  G02B6/02 ,  G02B6/38 ,  G02B6/245

CPC classification number: G02B6/0006 ,  G02B6/001 ,  G02B6/02033 ,  G02B6/0229 ,  G02B6/02295 ,  G02B6/02338 ,  G02B6/02357 ,  G02B6/02395 ,  G02B6/03633 ,  G02B6/03661 ,  G02B6/245 ,  G02B6/3861

Abstract: The present invention is directed to an optical fiber that includes a glass core region that has nano-sized structures configured to scatter light propagating in the glass core region. The glass core region has an average refractive index navg. The fiber includes an interior glass cladding region that has an interior cladding refractive index n2 that is less than navg. The fiber includes an outer cladding region that has an outer cladding refractive index n3 that is less than n2. A refractive index difference of n2−n3 corresponds to a bend uniformity diameter; the light exiting the outer cladding at a fiber bending location is substantially non-uniform when a bending diameter of the fiber bending location is less than the bend uniformity diameter.

Abstract translation: 本发明涉及一种光纤，其包括具有纳米尺寸结构的玻璃核心区域，该玻璃核心区域被配置为散射在玻璃核心区域中传播的光。 玻璃核心区域具有平均折射率导航。 纤维包括内部玻璃包层区域，其内部折射率n2小于导光率。 纤维包括具有小于n2的外包层折射率n3的外包层区域。 n2-n3的折射率差对应于弯曲均匀度直径; 当纤维弯曲位置的弯曲直径小于弯曲均匀度直径时，在纤维弯曲位置处离开外包层的光基本上不均匀。

公开(公告)号：US09279741B2

公开(公告)日：2016-03-08

申请号：US14089023

申请日：2013-11-25

Applicant: Corning Incorporated

Inventor： Kevin Wallace Bennett ,  Xin Chen ,  Jason Edward Hurley ,  Anping Liu ,  Jody Paul Markley ,  Joseph Edward McCarthy ,  Eric John Mozdy

IPC: G01M11/00 ,  H04B10/071 ,  H04B10/077 ,  C03B37/025

CPC classification number: G01M11/30 ,  C03B37/0253 ,  C03B2205/70 ,  G01M11/31 ,  G01M11/3118 ,  G01M11/3163 ,  G01M11/33 ,  G01M11/338 ,  G01M11/35 ,  H04B10/071 ,  H04B10/0775

Abstract: A method of measuring optical properties of a multi-mode optical fiber during processing of the fiber is described. The method includes: transmitting a light signal through one of the draw end of the multi-mode fiber and a test fiber section toward the other of the draw end and the test fiber section; and receiving a portion of the light signal at one of the draw end and the test fiber section. The method also includes obtaining optical data related to the received portion of the light signal; and analyzing the optical data to determine a property of the multi-mode fiber.

Abstract translation: 描述了在处理光纤期间测量多模光纤的光学特性的方法。 该方法包括：通过多模光纤的牵引端中的一个和测试光纤部分朝向拉出端和测试光纤部分中的另一个传输光信号; 并且在所述拉伸端和所述测试纤维部分中的一个处接收所述光信号的一部分。 该方法还包括获得与光信号的接收部分相关的光学数据; 以及分析光学数据以确定多模光纤的特性。

公开(公告)号：US20150131955A1

公开(公告)日：2015-05-14

申请号：US14159637

申请日：2014-01-21

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Stephan Lvovich Logunov

IPC: G02B6/02

CPC classification number: G02B6/03633 ,  G02B6/001 ,  G02B6/03694 ,  G02B6/04

Abstract: A light-diffusing optical fiber that includes a core region in the fiber that comprises a core glass composition; and an inner cladding in the fiber that surrounds the core region and comprises a cladding glass composition that substantially differs from the core glass composition. The core glass composition comprises a doped, low-melting point silica glass having less than 90% by weight SiO2, and the numerical aperture of the fiber is greater than or equal to 0.4. Further, light-diffusing optical fiber bundles that include a jacket comprising a scattering element; and a plurality of the light-diffusing optical fibers arranged within the jacket. Also, light-diffusing optical fiber bundles that include a transparent jacket; and a plurality of the light-diffusing optical fibers arranged within the jacket, the fibers further configured with an outer cladding having a plurality of scattering elements.

Abstract translation: 1.一种光漫射光纤，其包括纤芯内的核心区域，所述芯区域包含芯玻璃组合物; 以及围绕芯区域的纤维中的内包层，并且包括与芯玻璃组合物基本上不同的包层玻璃组合物。 核心玻璃组合物包含具有小于90重量％SiO 2的掺杂的低熔点石英玻璃，并且纤维的数值孔径大于或等于0.4。 此外，包括包含散射元件的护套的光漫射光纤束; 以及布置在护套内的多个光漫射光纤。 此外，包括透明护套的光漫射光纤束; 以及布置在所述护套内的多个所述光漫射光纤，所述光纤进一步配置有具有多个散射元件的外包层。

公开(公告)号：US08967845B2

公开(公告)日：2015-03-03

申请号：US13826980

申请日：2013-03-14

Applicant: Corning Incorporated

Inventor： Kevin Wallace Bennett ,  Edward John Fewkes ,  Stephan Lvovich Logunov ,  Vineet Tyagi

IPC: G02B6/44 ,  F21V8/00 ,  G02B6/04 ,  G02B6/02

CPC classification number: G02B6/0006 ,  G02B6/0001 ,  G02B6/001 ,  G02B6/02338 ,  G02B6/02366 ,  G02B6/04

Abstract: Light diffusing optical fiber bundles, illumination systems including light diffusing optical fiber bundles, and methods of affixing light diffusing optical fiber bundles to polymer optical fibers are disclosed. A light diffusing optical fiber bundle includes an optically transmissive jacket and a plurality of light diffusing optical fibers disposed within the optically transmissive jacket. Each of the plurality of light diffusing optical fibers includes a glass core including a plurality of nano-sized voids. The plurality of light diffusing optical fibers extend along a length of the optically transmissive jacket such that the plurality of diffusing optical fibers are not interwoven.

Abstract translation: 公开了光漫射光纤束，包括光扩散光纤束的照明系统，以及将光漫射光纤束固定在聚合物光纤上的方法。 光散射光纤束包括透光护套和设置在光学透射护套内的多个光漫射光纤。 多个光散射光纤中的每一个包括包括多个纳米尺寸的空隙的玻璃芯。 多个光漫射光纤沿着光学透射护套的长度延伸，使得多个漫射光纤不交织。