公开(公告)号：US20240176062A1

公开(公告)日：2024-05-30

申请号：US18431606

申请日：2024-02-02

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Yuki ARAO

IPC分类号： G02B6/02 ,  C03B37/027 ,  G02B6/26 ,  G02B6/38

CPC分类号： G02B6/02042 ,  C03B37/027 ,  G02B6/02309 ,  G02B6/262 ,  G02B6/3885

摘要： There is provided a method of manufacturing an optical connector, including: preparing a multi-core optical fiber including a glass fiber and a resin coating that covers the glass fiber; inserting the glass fiber exposed from the resin coating into the ferrule such that the glass fiber protrudes from an end surface of a ferrule by a length A; rotating and aligning the multi-core optical fiber with respect to the ferrule; fixing the multi-core optical fiber to the ferrule; and so as to scrap off a tip end of the ferrule by a length. A deviation angle in the circumferential direction between a first initial end surface of the one end of the prepared glass fiber and a cross section of the glass fiber separated from the initial end surface by a length A+B mm is equal to or less than 0.9°.

公开(公告)号：US11858846B2

公开(公告)日：2024-01-02

申请号：US17768692

申请日：2022-01-29

申请人： China Building Materials Academy

发明人： Lei Zhang ,  Zhenbo Cao ,  Jinsheng Jia ,  Yun Wang ,  Yue Zhao ,  Xian Zhang ,  Xiaofeng Tang ,  Yu Shi ,  Jing Zhang ,  Zhiheng Fan ,  Huichao Xu ,  Haoyang Yu ,  Puguang Song ,  Aixin Wang ,  Changhua Hong

IPC分类号： C03C3/068 ,  C03C13/04 ,  C03B37/02 ,  C03B5/08 ,  C03B5/18 ,  C03B37/012 ,  C03B37/027 ,  C03B25/02 ,  C03B5/225 ,  G02B6/06

CPC分类号： C03C3/068 ,  C03B5/08 ,  C03B5/18 ,  C03B5/225 ,  C03B25/02 ,  C03B37/01268 ,  C03B37/027 ,  C03C13/045 ,  C03C2213/00 ,  G02B6/06

摘要： The present invention discloses a glass with high refractive index for fiber optic imaging elements with medium-expansion and fabrication method therefor, the glass comprising the following components in percentage by weight: SiO2 5-9%, Al2O3 0-1%, B2O3 23-28%, CaO 0-3%, BaO 6-12%, La2O3 30-34%, Nb2O5 4-8%, Ta2O5 0-1%, Y2O3 0-1%, ZnO 4-9%, TiO2 4-8%, ZrO2 4-6%, SnO2 0-1%. The present invention further provides a fabrication method for the glass with a high refractive index, comprising: putting raw materials quartz sand, aluminum hydroxide, boric acid or boric anhydride, calcium carbonate, barium carbonate or barium nitrate, lanthanum oxide, niobium oxide, tantalum oxide, yttrium oxide, zinc oxide, titanium dioxide, zirconium oxide and stannic oxide, etc. into a platinum crucible according to the requirement of dosing, melting at a high temperature, cooling and fining, leaking and casting to form a glass rod, and then annealing, cooling and chilling the molded glass rod.

公开(公告)号：US11820695B2

公开(公告)日：2023-11-21

申请号：US17202589

申请日：2021-03-16

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Takuji Nagashima ,  Kimiaki Sato ,  Kazuo Kaneko ,  Akira Kawai

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

CPC分类号： C03B37/027 ,  C03B37/01222 ,  G02B6/02042

摘要： A manufacturing method includes forming one or more first holes in a cladding rod, inserting a first glass rod into each of the one or more first holes, heating the cladding rod together with the inserted first glass rod to integrate the first glass rod and the cladding rod and to form an intermediate preform, forming one or more second holes in the intermediate preform, inserting a second glass rod into each of the one or more second holes, and heating the intermediate preform together with the inserted second glass rod to integrate the second glass rod and the intermediate preform.

公开(公告)号：US20180356589A1

公开(公告)日：2018-12-13

申请号：US16104220

申请日：2018-08-17

申请人： FURUKAWA ELECTRIC CO., LTD.

发明人： Kazunori MUKASA ,  Yukihiro TSUCHIDA

IPC分类号： G02B6/02 ,  C03B37/012 ,  C03B37/027 ,  G02B6/032

CPC分类号： G02B6/02361 ,  C03B37/012 ,  C03B37/01211 ,  C03B37/027 ,  C03B37/02781 ,  C03B2203/14 ,  C03B2203/22 ,  G02B6/02 ,  G02B6/032 ,  G02B6/036

摘要： An optical fiber that has an air layer in a clad portion and can suppress a degradation in a transmission characteristic caused by a support member present in the air layer is provided. The optical fiber includes a core (1), tubular layers (22 to 25) concentrically arranged around the core (1) via the air layer, and support members (3a to 3l) that are arranged to the air layer and connect the core (1) with the tubular layers (22 to 25), and in the optical fiber, in a cross-sectional view of a longitudinal direction of the optical fiber, a distance between support members (3a to 3l) in a circumferential direction of the optical fiber is wider than a double thickness of the air layer in which the support members (3a to 3l) are arranged.

公开(公告)号：US20180180801A1

公开(公告)日：2018-06-28

申请号：US15852565

申请日：2017-12-22

申请人： INSTYTUT TECHNOLOGII MATERIALOW ELEKTRONICZNYCH

发明人： Ryszard BUCZYNSKI ,  Dariusz PYSZ ,  Marcin FRANCZYK ,  Mariusz KLIMCZAK ,  Rafal KASZTELANIC ,  Ryszard STEPIEN

IPC分类号： G02B6/02 ,  G02B6/06 ,  C03B37/012

CPC分类号： G02B6/02038 ,  C03B37/01205 ,  C03B37/01211 ,  C03B37/027 ,  C03B2201/34 ,  C03B2203/12 ,  C03B2203/24 ,  C03B2203/26 ,  G02B6/02323 ,  G02B6/02352 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/06 ,  H01S3/067

摘要： The invention relates to a method of manufacturing an active optical fibre having a cladding and a doped core, as well as the active optical fibre equipped with the cladding and the doped core. The active optical fibre according to the invention is adapted to conduct and generate radiation having a wavelength λ and is provided with a cladding and a core containing at least one active dopant, characterised in that the core comprises elongate elements made of a first type of glass having a first refractive index n1 and elongate elements of a second type of glass having a second refractive index n2, oriented along the optical fibre and forming a compact bundle, wherein transverse dimensions of the elongate core elements are smaller than ⅕ of the wavelength λ. Such optical fibres are used in laser generation and in amplification techniques.

公开(公告)号：US20180044234A1

公开(公告)日：2018-02-15

申请号：US15789214

申请日：2017-10-20

申请人： Adam Hokansson ,  David J. Kudelko ,  Yaowen Li ,  Joanna Y. Ng ,  Debra A. Simoff

发明人： Adam Hokansson ,  David J. Kudelko ,  Yaowen Li ,  Joanna Y. Ng ,  Debra A. Simoff

IPC分类号： C03C25/10 ,  C03B37/027

CPC分类号： C03C25/1062 ,  B23K26/359 ,  B23K26/364 ,  B23K26/50 ,  C03B37/027 ,  C03B2201/21 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2205/20 ,  C03C25/106 ,  C03C25/6208 ,  C03C2218/152 ,  G02B6/02114 ,  G02B6/02138 ,  G02B6/02395 ,  G02B2006/02161

摘要： A technique is described for fabricating one or more optical devices in a carbon-coated optical fiber. A photosensitive optical fiber is provided having a hermetic carbon coating. Further provided is a laser having a beam output that is configured to inscribe one or more refractive index modulations into the optical fiber through the hermetic carbon layer while leaving the hermetic carbon layer intact. The laser is used to inscribe one or more optical devices into the optical fiber through the hermetic carbon layer.

公开(公告)号：US09841556B2

公开(公告)日：2017-12-12

申请号：US15137336

申请日：2016-04-25

申请人： Corning Incorporated

发明人： Douglas Llewellyn Butler ,  Daniel Warren Hawtof ,  Rick Charles Layton, III ,  Gautam Meda ,  John Stone, III ,  Pushkar Tandon

IPC分类号： G02B6/02 ,  C03B37/012 ,  C03B37/027 ,  C03B37/029

CPC分类号： G02B6/02042 ,  C03B37/01205 ,  C03B37/01222 ,  C03B37/027 ,  C03B37/029 ,  C03B2203/04 ,  C03B2203/12 ,  C03B2203/34 ,  G02B6/00

摘要： A multicore fiber is provided. The multicore fiber includes a plurality of cores spaced apart from one another, and a cladding surrounding the plurality of cores and defining a substantially rectangular or cross-sectional shape having four corners. Each corner has a radius of curvature of less than 1000 microns. The multicore fiber may be drawn from a preform in a circular draw furnace in which a ratio of a maximum cross-sectional dimension of the preform to an inside diameter of the preform to an inside diameter of the draw furnace is greater than 0.60. The multicore fiber may have maxima reference surface.

公开(公告)号：US20170322369A1

公开(公告)日：2017-11-09

申请号：US15659127

申请日：2017-07-25

申请人： Corning Incorporated

发明人： Douglas Llewellyn Butler ,  Daniel Warren Hawtof ,  Rick Charles Layton, III ,  Gautam Meda ,  John Stone, III ,  Pushkar Tandon

IPC分类号： G02B6/02 ,  C03B37/012 ,  C03B37/027 ,  C03B37/029

CPC分类号： G02B6/02042 ,  C03B37/01205 ,  C03B37/01222 ,  C03B37/027 ,  C03B37/029 ,  C03B2203/04 ,  C03B2203/12 ,  C03B2203/34 ,  G02B6/00

摘要： A multicore fiber is provided. The multicore fiber includes a plurality of cores spaced apart from one another, and a cladding surrounding the plurality of cores and defining a substantially rectangular or cross-sectional shape having four corners. Each corner has a radius of curvature of less than 1000 microns. The multicore fiber may be drawn from a preform in a circular draw furnace in which a ratio of a maximum cross-sectional dimension of the preform to an inside diameter of the preform to an inside diameter of the draw furnace is greater than 0.60. The multicore fiber may have maxima reference surface.

公开(公告)号：US09733424B2

公开(公告)日：2017-08-15

申请号：US14703003

申请日：2015-05-04

申请人： FUJIKURA LTD.

发明人： Itaru Ishida ,  Shoichiro Matsuo

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

CPC分类号： G02B6/02042 ,  C03B37/01222 ,  C03B37/01225 ,  C03B37/01231 ,  C03B37/027 ,  C03B2203/02 ,  C03B2203/10 ,  C03B2203/34

摘要： A multicore fiber according to an embodiment of the present invention includes a plurality of cores and a cladding that encloses the plurality of the cores. The external form of the cladding in a cross section is formed of an arc portion that is formed in an arc shape relative to the center axis of the cladding and a non-arc portion that is pinched between two ends of the arc portion and not formed in an arc shape relative to the center axis of the cladding. The non-arc portion is formed with a pair of projections projecting from two ends of the arc portion on the opposite side of the center axis relative to a straight line connecting the both ends of the arc portion and one or more of recesses pinched between the pair of the projections.

公开(公告)号：US20170197878A1

公开(公告)日：2017-07-13

申请号：US15471344

申请日：2017-03-28

申请人： Corning Incorporated

发明人： Dana Craig Bookbinder ,  Robert Brett Desorcie ,  Hazel Benton Matthews, III ,  Pushkar Tandon

IPC分类号： C03C25/66 ,  G02B6/036 ,  C03C25/10

CPC分类号： C03C25/66 ,  C03B37/01205 ,  C03B37/01446 ,  C03B37/0146 ,  C03B37/027 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/42 ,  C03B2203/23 ,  C03B2203/24 ,  C03C3/06 ,  C03C13/045 ,  C03C25/1061 ,  C03C25/1068 ,  C03C2201/11 ,  C03C2201/22 ,  C03C2201/31 ,  C03C2203/54 ,  G02B6/02 ,  G02B6/021 ,  G02B6/03627 ,  G02B6/0365 ,  Y02P40/57

摘要： The present disclosure is directed to a method of making an optical fiber with improved bend performance, the optical fiber having a core and at least one cladding layer, and a chlorine content in the in the last layer of the at least one cladding layer that is greater than 500 ppm by weight. The fiber is prepared using a mixture of a carrier gas, a gaseous chlorine source material and a gaseous reducing agent during the sintering of the last or outermost layer of the at least one cladding layer. The inclusion of the reducing gas into a mixture of the carrier gas and gaseous chlorine material reduces oxygen-rich defects that results in at least a 20% reduction in TTP during hydrogen aging testing.