公开(公告)号：US11811453B2

公开(公告)日：2023-11-07

申请号：US17824477

申请日：2022-05-25

申请人： Heraeus Quartz North America LLC

发明人： Qiulin Ma ,  Kai Huei Chang ,  Evan P. Green ,  James E. Beavers, Jr. ,  Carl W. Ponader

IPC分类号： C03B37/012 ,  H04B10/2507 ,  G01B11/08 ,  G01B11/25 ,  G02B6/02 ,  G01N21/41 ,  G06T7/60

CPC分类号： H04B10/2507 ,  C03B37/0126 ,  C03B37/01211 ,  C03B37/01245 ,  C03B37/01248 ,  G01B11/08 ,  G01B11/25 ,  G02B6/02 ,  G01N21/412 ,  G06T7/60 ,  Y02P40/57

摘要： An apparatus for producing large glass preforms with minimal clad to-core waveguide distortion from a glass body having a weight, an outer surface, core rods, and a cladding surrounding and separated from the core rods by a gap. The apparatus includes collars affixed to the top and bottom of the cladding; a spacer upon which the core rods rest; a first unit holding and supporting both the bottom collar and the spacer; a second unit holding and supporting the top collar; and a frame defining a heating zone having a heating element to heat the glass body. The weight of the glass body above and below the molten glass in the heating zone is supported by the first and second units without contacting the outer surface of the glass body.

公开(公告)号：US11808970B2

公开(公告)日：2023-11-07

申请号：US17454709

申请日：2021-11-12

申请人： Lumentum Operations LLC

发明人： Vincent Petit ,  Martin H. Muendel

IPC分类号： G02B6/02 ,  H01S3/067 ,  C03B37/027 ,  C03B37/012

CPC分类号： G02B6/02295 ,  C03B37/01211 ,  C03B37/027 ,  C03B37/02763 ,  G02B6/02376 ,  H01S3/06716 ,  H01S3/06745 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/20 ,  C03B2203/22

摘要： An optical fiber may comprise a core doped with one or more active ions to guide signal light from an input end of the optical fiber to an output end of the optical fiber, a cladding surrounding the core to guide pump light from the input end of the optical fiber to the output end of the optical fiber, and one or more inserts formed in the cladding surrounding the core. The core may have a geometry (e.g., a cross-sectional size, a helical pitch, and/or the like) that varies along a longitudinal length of the optical fiber, which may cause an absorption of the pump light to be modulated along the longitudinal length of the optical fiber.

公开(公告)号：US20190062198A1

公开(公告)日：2019-02-28

申请号：US16061122

申请日：2016-12-16

申请人： Heraeus Quarzglas GmbH & Co. KG

发明人： Michael HÜNERMANN ,  Achim HOFMANN ,  Heinz FABIAN ,  Matthias OTTER ,  Thomas KAYSER

IPC分类号： C03C3/06 ,  C03B20/00 ,  C03B37/027 ,  C03B19/06 ,  C03C25/1065 ,  C03B37/012 ,  C03C13/04 ,  G02B6/02

CPC分类号： C03C3/06 ,  C03B19/066 ,  C03B19/108 ,  C03B19/1095 ,  C03B20/00 ,  C03B37/01211 ,  C03B37/027 ,  C03B2201/03 ,  C03B2201/04 ,  C03C1/026 ,  C03C13/045 ,  C03C25/1065 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/32 ,  C03C2203/10 ,  C03C2213/00 ,  G02B6/02042 ,  G02B6/02395

摘要： One aspect relates to a light guide comprising a jacket and one or more cores, wherein the jacket surrounds the cores. Each core has a refractive index profile perpendicular to the maximum extension of the core, wherein at least one refractive index nK of each refractive index profile is greater than the refractive index nM1 of the jacket. The jacket is made of silicon dioxide and has an OH content of less than 10 ppm, a chlorine content of less than 60 ppm, and an aluminium content of less than 200 ppb. One aspect also relates to a silicon dioxide granulate I, characterized by a chlorine content of less than 200 ppm and an aluminium content of less than 200 ppb, in each case based on the total weight of the silicon dioxide granulate I.

公开(公告)号：US09919946B2

公开(公告)日：2018-03-20

申请号：US15412283

申请日：2017-01-23

申请人： Corning Incorporated

发明人： Amanda Lee Billings ,  Dana Craig Bookbinder ,  Robert Brett Desorcie ,  Liam Ruan de Paor ,  Pushkar Tandon ,  Li Yang

IPC分类号： G02B6/02 ,  C03B37/014 ,  C03B37/012 ,  C03B37/027 ,  G02B6/036

CPC分类号： C03B37/01446 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/027 ,  C03B2201/075 ,  C03B2201/20 ,  C03B2203/23 ,  G02B6/02 ,  G02B6/021 ,  G02B6/03627 ,  G02B6/0365 ,  Y02P40/57

摘要： A method for forming an optical fiber preform and fibers drawn from the preform. The method includes forming a soot cladding monolith, inserting a consolidated core cane into the internal cavity, and processing the resulting core-cladding assembly to form a preform. Processing may include exposing the core-cladding assembly to a drying agent and/or dopant precursor, and sintering the core-cladding assembly in the presence of a reducing agent to densify the soot cladding monolith onto the core cane to form a preform. The preform features low hydroxyl content and low sensitivity to hydrogen. Fibers drawn from the preform exhibit low attenuation losses from absorption by the broad band centered near 1380 nm.

公开(公告)号：US20170168231A1

公开(公告)日：2017-06-15

申请号：US15444687

申请日：2017-02-28

申请人： Corning Incorporated

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

IPC分类号： G02B6/02 ,  C03C13/04 ,  C03B37/014 ,  G02B6/036 ,  C03B37/018

CPC分类号： G02B6/02014 ,  C03B37/01205 ,  C03B37/01211 ,  C03B37/01262 ,  C03B37/01282 ,  C03B37/01413 ,  C03B37/01433 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/018 ,  C03B37/01815 ,  C03B37/0183 ,  C03B37/01838 ,  C03B37/01853 ,  C03B37/01869 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/24 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/24 ,  C03B2205/42 ,  C03B2207/30 ,  C03C13/045 ,  C03C13/046 ,  C03C25/1061 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2203/54 ,  C03C2213/00 ,  G02B6/02019 ,  G02B6/03627

摘要： An optical fiber having a core comprising silica and greater than 1.5 wt % chlorine and less than 0.5 wt % F, said core having a refractive index Δ1MAX, and a inner cladding region having refractive index Δ2MIN surrounding the core, where Δ1MAX>Δ2MIN.

公开(公告)号：US20170129800A1

公开(公告)日：2017-05-11

申请号：US15412283

申请日：2017-01-23

申请人： Cornng Incorporated

发明人： Amanda Lee Billings ,  Dana Craig Bookbinder ,  Robert Brett Desorcie ,  Liam Ruan dePaor ,  Pushkar Tandon ,  Li Yang

IPC分类号： C03B37/014 ,  C03B37/027 ,  G02B6/036 ,  C03B37/012

CPC分类号： C03B37/01446 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/027 ,  C03B2201/075 ,  C03B2201/20 ,  C03B2203/23 ,  G02B6/02 ,  G02B6/021 ,  G02B6/03627 ,  G02B6/0365 ,  Y02P40/57

摘要： A method for forming an optical fiber preform and fibers drawn from the preform. The method includes forming a soot cladding monolith, inserting a consolidated core cane into the internal cavity, and processing the resulting core-cladding assembly to form a preform. Processing may include exposing the core-cladding assembly to a drying agent and/or dopant precursor, and sintering the core-cladding assembly in the presence of a reducing agent to densify the soot cladding monolith onto the core cane to form a preform. The preform features low hydroxyl content and low sensitivity to hydrogen. Fibers drawn from the preform exhibit low attenuation losses from absorption by the broad band centered near 1380 nm.

公开(公告)号：US20170101339A1

公开(公告)日：2017-04-13

申请号：US15273033

申请日：2016-09-22

申请人： Corning Incorporated

发明人： Xiaoming Luo ,  Chunfeng Zhou

IPC分类号： C03C13/04 ,  C03B37/027 ,  G02B6/036 ,  C03B37/012

CPC分类号： C03C13/046 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/01248 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2203/224 ,  C03B2203/23 ,  C03C13/045 ,  C03C25/1061 ,  C03C2213/00 ,  G02B6/03627 ,  G02B6/03638 ,  G02B6/0365

摘要： The present disclosure provides optical fiber preforms formed from core canes having large core-clad ratio, intermediate core-cladding assemblies, and methods for making the preforms and core cladding assemblies. The preforms are made from core canes having a contoured end surface. The contoured end surface(s) include a depression that acts to reduce the stress that develops at the junction of the end surface of the core cane with a soot cladding monolith arising from differences in the coefficient of thermal expansions of the core can and soot cladding monolith. The contoured end surface(s) leads to preforms having low defect concentration and low probability of failure during fiber draw.

公开(公告)号：US20170101335A1

公开(公告)日：2017-04-13

申请号：US15271610

申请日：2016-09-21

申请人： Corning Incorporated

发明人： Paul Andrew Chludzinski ,  Dominick Fiordimalva

IPC分类号： C03B37/012

CPC分类号： C03B37/01222 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/06 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/224 ,  C03B2203/225 ,  C03B2203/23 ,  C03B2203/34 ,  Y02P40/57

摘要： The present disclosure provides optical fiber preforms formed from core canes having large core-clad ratio, intermediate core-cladding assemblies, and methods for making the preforms and core cladding assemblies. The preforms are made with capped core canes. The capping material has a coefficient of thermal expansion less than the coefficient of thermal expansion of the core cane and more closely matched to or lower than the coefficient of thermal expansion of the surrounding cladding monolith in a cane-in-soot process. Presence of the cap reduces stresses that arise from differential thermal expansion of the core cane and cladding materials and leads to preforms having low defect concentration and low probability of failure during subsequent thermal processing steps.

公开(公告)号：US20160318793A1

公开(公告)日：2016-11-03

申请号：US15137255

申请日：2016-04-25

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Yoshiaki TAMURA ,  Tetsuya HARUNA ,  Yuki KAWAGUCHI

IPC分类号： C03C13/04 ,  C03B37/014

CPC分类号： C03C13/046 ,  C03B37/01211 ,  C03B37/01237 ,  C03B37/0124 ,  C03B37/014 ,  C03B37/01807 ,  C03B37/01861 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2203/22 ,  C03B2203/222 ,  C03C2201/12 ,  C03C2201/50 ,  C03C2201/54

摘要： An optical fiber preform of the present embodiment comprises a core portion and a cladding each comprised of silica glass. The core portion has a first dopant region including a central axis of the core portion and a second dopant region away from the central axis. The first dopant region contains a first dopant selected from among Na, K, and their compounds, and a concentration of the first dopant is 10 atomic ppm or more but 2,000 atomic ppm or less. The second dopant region contains a second dopant reducing viscosity of the silica glass. The second dopant has, as a characteristic at a temperature of 2,000° C. to 2,300° C., a diffusion coefficient of 1×10−12 cm2/s or higher but lower than that of the first dopant, and a concentration of the second dopant region is 10 atomic ppm or more.

摘要翻译： 本实施方式的光纤预制件包括由石英玻璃构成的芯部和包层。 芯部分具有包括芯部分的中心轴线和远离中心轴线的第二掺杂剂区域的第一掺杂区域。 第一掺杂剂区域含有选自Na，K及其化合物的第一掺杂剂，第一掺杂剂的浓度为10原子ppm以上且2000原子ppm以下。 第二掺杂剂区域包含第二掺杂剂，降低石英玻璃的粘度。 作为在2000℃〜2300℃的温度下的特性，第二掺杂剂的扩散系数为1×10-12 cm 2 / s以上但比第一掺杂剂低的扩散系数， 第二掺杂剂区域为10原子ppm以上。

公开(公告)号：US20160178844A1

公开(公告)日：2016-06-23

申请号：US14937427

申请日：2015-11-10

申请人： nnovaQuartz LLC

发明人： Stephen E. Griffin

IPC分类号： G02B6/26 ,  A61B18/22 ,  G02B6/32

CPC分类号： G02B6/262 ,  A61B18/22 ,  A61B18/24 ,  A61B2017/00061 ,  A61B2018/00386 ,  A61B2018/00404 ,  A61B2018/00511 ,  A61B2018/00547 ,  A61B2018/00577 ,  A61B2018/00589 ,  A61B2018/00625 ,  A61B2018/00785 ,  A61B2018/00982 ,  A61B2018/2211 ,  A61B2018/2244 ,  A61B2018/2266 ,  A61B2018/2272 ,  A61B2018/2277 ,  C03B37/01211 ,  G02B6/32

摘要： Herein is described a side firing optical device for minimal output reflections (scatter) in a one-piece lateral output assembly within which a transmitting optical fiber conduit is disposed providing redirected electromagnetic radiation with operator control of the output beam characteristics. The herein disclosed lateral redirecting device permits ergonomic free rotation of the lateral output beam with positive orientation, provides focus-control of the output beam spot size and/or focus, and provides resposable components, both intraoperatively and interoperatively.

摘要翻译： 这里描述了一种用于在单件式横向输出组件中进行最小输出反射（散射）的侧面点火光学装置，其中布置发射光纤导管，其中提供重定向的电磁辐射，操作者控制输出光束特性。 本文公开的横向重定向装置允许横向输出光束以正向定向的人体工程学自由旋转，提供输出光束尺寸和/或焦点的焦点控制，并且在术中和互操作之间提供可重复组件。