公开(公告)号：US20240286948A1

公开(公告)日：2024-08-29

申请号：US18657002

申请日：2024-05-07

申请人： SCHOTT CORPORATION

发明人： Mark J. Davis

IPC分类号： C03C3/32 ,  C03C13/04 ,  G01L1/24 ,  G02B6/02 ,  H01S3/17

CPC分类号： C03C3/321 ,  C03C13/048 ,  G01L1/242 ,  G02B6/0219 ,  H01S3/171 ,  C03C2213/00

摘要： Athermal glasses and athermal systems for infrared optical components and systems are disclosed.

公开(公告)号：US20240254034A1

公开(公告)日：2024-08-01

申请号：US18417324

申请日：2024-01-19

申请人： CORNING INCORPORATED

发明人： Leon Devone, JR. ,  Matthew Ryan Drake ,  Rostislav Radiyevich Khrapko ,  Pushkar Tandon ,  Matthew Artus Tuggle

IPC分类号： C03C13/04 ,  C03B37/027 ,  C03C3/06

CPC分类号： C03C13/046 ,  C03B37/02718 ,  C03C3/06 ,  C03C2201/11 ,  C03C2201/50

摘要： A method of making a multicore optical fiber preform, the method including consolidating a preform assembly to form the multicore optical fiber preform, the preform assembly including a plurality of core canes such that each core cane is disposed within an axial hole of a sleeve, each core cane including a core section of alkali doped silica glass such that the silica glass has a maximum alkali concentration between about 0.10 wt. % and about 10 wt. %, the core section of each core cane being encased by the sleeve along a height of the core cane and by covers disposed at first and second axial ends of the core section, and the covers including silica glass having a chlorine concentration of about 0.05 wt. % or less.

公开(公告)号：US20240102886A1

公开(公告)日：2024-03-28

申请号：US18039600

申请日：2020-12-11

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Nobutomo HANZAWA ,  Takashi MATSUI ,  Yuto SAGAE ,  Kazuhide NAKAJIMA

IPC分类号： G01M11/00 ,  C03C13/04

CPC分类号： G01M11/33 ,  C03C13/04 ,  C03C2213/00

摘要： An object of the present invention is to provide an evaluation method and an evaluation device for easily determining whether or not a structural parameter of a multi-core fiber satisfies a desired connection loss value (a specification). The evaluation method according to the present invention includes a step of measuring center coordinates of each core with the center coordinates when a clad is approximated by a circle as an origin in an observed cross-sectional structure of the multi-core fiber to be objected, obtaining a length of a line segment connecting the origin and the center of each core and an angle formed by two line segments connecting the origin and two adjacent cores, and judging whether or not a desired connection loss characteristic is satisfied on the basis of whether or not the values satisfy a predetermined determination formula.

公开(公告)号：US11719881B2

公开(公告)日：2023-08-08

申请号：US17856415

申请日：2022-07-01

申请人： NKT Photonics

发明人： Thomas Tanggaard Alkeskjold ,  Casper Laur Byg ,  Christian Jakobsen ,  Jens Kristian Lyngsøe ,  Kim G. Jespersen ,  Jeppe Johansen ,  Martin Dybendal Maack ,  Martin Erland Vestergaard Pedersen ,  Carsten L. Thomsen

IPC分类号： G02B6/036 ,  C03B37/027 ,  C03B37/10 ,  C03C13/04 ,  C03C25/106 ,  C03C25/1065 ,  C03C25/607 ,  G02B6/02 ,  G02B6/14 ,  G02F1/365 ,  G02F1/35

CPC分类号： G02B6/03694 ,  C03B37/0279 ,  C03B37/02781 ,  C03B37/10 ,  C03C13/045 ,  C03C13/046 ,  C03C25/1061 ,  C03C25/1062 ,  C03C25/1068 ,  C03C25/607 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02395 ,  G02B6/14 ,  G02F1/365 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/21 ,  C03B2201/22 ,  C03B2203/14 ,  C03B2203/23 ,  C03B2203/42 ,  C03C2201/02 ,  C03C2201/21 ,  C03C2201/22 ,  G02B6/02366 ,  G02F1/3528

摘要： A Photonic Crystal Fiber (PCF) a method of its production and a supercontinuum light source comprising such PCF. The PCF has a longitudinal axis and includes a core extending along the length of said longitudinal axis and a cladding region surrounding the core. At least the cladding region includes a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the PCF in at least a microstructured length section. In at least a degradation resistant length section of the microstructured length section the PCF includes hydrogen and/or deuterium. In at least the degradation resistant length section the PCF further includes a main coating surrounding the cladding region, which main coating is hermetic for the hydrogen and/or deuterium at a temperature below Th, wherein Th is at least about 50° C., preferably 50° C.

公开(公告)号：US20230066680A1

公开(公告)日：2023-03-02

申请号：US17553510

申请日：2021-12-16

申请人： Sterlite Technologies Limited

发明人： Badri Gomatam ,  Nivedita Prasad ,  Chandan Saha

IPC分类号： G02B6/02 ,  C03B37/012 ,  C03C13/04

摘要： An optical fibre including a core region defined along a central longitudinal axis of the optical fibre and a cladding region concentrically surrounds the core region of the optical fibre. In particular, the core region has a first radius r1 and a first refractive index n1. Moreover, the cladding has a second radius r2 and a second refractive index n2. Furthermore, the optical fibre has a step index profile.

公开(公告)号：US20220332632A1

公开(公告)日：2022-10-20

申请号：US17549213

申请日：2021-12-13

申请人： The Penn State Research Foundation

发明人： Carly Jean Mathewson ,  John Christopher Mauro ,  Venkatraman Gopalan ,  John Victor Badding

IPC分类号： C03C13/04 ,  C03C3/083 ,  C03C3/087 ,  C03C4/00

摘要： Disclosed herein are glass compositions, articles made from the disclosed glass compositions, and methods of making the same. More specifically, disclosed herein is a glass composition comprising from about 10 to about 14 mol % of K2O; from 0 to about 4 mol % of CaO; from about 14 to about 18 mol % of Al2O3; and from about 66 to about 74 mol % SiO2.

公开(公告)号：US11247934B2

公开(公告)日：2022-02-15

申请号：US16243506

申请日：2019-01-09

申请人： Corning Incorporated

发明人： Bruce Gardiner Aitken ,  Lina Ma ,  John Christopher Mauro

IPC分类号： C03C3/145 ,  C03C3/15 ,  C03C3/068 ,  C03C3/064 ,  C03C3/155 ,  C03C13/04

摘要： An optical boroaluminate glass article comprises: from greater than or equal to 10.0 mol % to less than or equal to 30.0 mol % Al2O3; from greater than or equal to 10.0 mol % to less than or equal to 55.0 mol % CaO; from greater than or equal to 10.0 mol % to less than or equal to 25.0 mol % B2O3; from greater than or equal to 0.0 mol % to less than or equal to 30.0 mol % SiO2; and from greater than or equal to 1.0 mol % to less than or equal to 20.0 mol % refractive index raising components. The optical boroaluminate glass article has a refractive index of the glass article, measured at 589.3 nm, of greater than or equal to 1.62, and a density of less than or equal to 4.00 g/cm3.

公开(公告)号：US20220009817A1

公开(公告)日：2022-01-13

申请号：US17361421

申请日：2021-06-29

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Yuki KAWAGUCHI ,  Hirotaka SAKUMA

IPC分类号： C03B37/027 ,  C03C13/04 ,  C03B37/029 ,  G02B6/02 ,  C03B37/12

摘要： A method for manufacturing an optical fiber includes: heating an optical fiber preform to draw glass fiber; measuring an outer diameter of the glass fiber to obtain a function of time; transforming the function of time into a function of frequency; identifying a first peak caused by a first drawing condition and a second peak caused by a second drawing condition in the function of frequency; and adjusting the second drawing condition so as to satisfy fn fm+wm/2, where fm is a frequency of the first peak, wm is a full width at half maximum of the first peak, and fn is a frequency of the second peak.

公开(公告)号：US11136256B2

公开(公告)日：2021-10-05

申请号：US16045724

申请日：2018-07-25

申请人： MADE IN SPACE, INC.

发明人： Jan Clawson ,  Robert White ,  Nate Pickslay ,  Michael Snyder ,  Geoffrey York Powers ,  Noah Paul-Gin

IPC分类号： C03B37/025 ,  C03B37/029 ,  C03B37/02 ,  C03C13/04 ,  C03C25/105 ,  B01D29/60 ,  B01D29/56 ,  C03B37/027 ,  C03B37/07 ,  C03C25/106 ,  C03C25/6226 ,  C03B37/012 ,  G02B6/02 ,  C03B37/03

摘要： A sensor system to provide data for use to control manufacture of an optical fiber in microgravity including a diameter sensor to monitor a diameter of a fiber drawn from a preform material, a tension sensor to monitor tension of the fiber as the fiber is pulled from the preform material to a storage device and a controller in communication with at least one of the diameter sensor and the tension sensor to evaluate sensor data to determine at least one of a speed and rate at which the fiber is pulled from the preform material.

公开(公告)号：US11046608B2

公开(公告)日：2021-06-29

申请号：US14911522

申请日：2013-08-13

申请人： DRAKA COMTEQ BV

发明人： Cédric Gonnet ,  Emmanuel Petitfrere ,  Laurent Calvo ,  Olivier Delwal

IPC分类号： C03C13/04 ,  C03C25/1065 ,  C03B37/018 ,  C03B37/012 ,  C03C3/06

摘要： The invention relates to an optical fiber preform (20) comprising a primary preform (21) and one or more purified silica-based overclad layers (22) surrounding said primary preform (21), the purified silica-based overclad layers (22) comprising lithium and aluminium, and having a ratio between lithium concentration [Li] and aluminium concentration [Al] satisfying the following inequality: 1×10−3≤[Li]/[Al]≤20×10−3.