公开(公告)号：US20240302273A1

公开(公告)日：2024-09-12

申请号：US18180931

申请日：2023-03-09

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Khurram Karim QURESHI ,  Md. Ahasan HABIB

IPC: G01N21/41 ,  C03B37/027 ,  G02B6/02

CPC classification number: G01N21/41 ,  C03B37/0279 ,  G02B6/02328 ,  C03B2201/02 ,  C03B2203/42 ,  G01N2201/08

Abstract: An optical sensor that includes a photonic crystal fiber (PCF) and an optical coupler. The PCF includes a hollow core with a first diameter (Dc), an inner cladding section, and an outer layer surrounding the inner cladding section. The inner cladding section includes a cladding material and a plurality of spaced apart circular-shaped channels disposed in the cladding material surrounding the hollow core. The cladding material includes at least one of glass, ceramic, and glass-ceramic. Each spaced apart circular-shaped channel has substantially the same size and an average diameter (d). A first end of the PCF is in optical communication with a light source and a second end of the PCF is in optical communication with the optical coupler.

公开(公告)号：US11993530B2

公开(公告)日：2024-05-28

申请号：US17596005

申请日：2020-06-05

Applicant: D. Swarovski KG

Inventor： Paolo Colombo ,  Giorgia Franchin ,  Giulio Giometti ,  Johanna Schmidt ,  Anna De Marzi

IPC: C03B20/00 ,  C03B19/06 ,  C03C1/00 ,  C03C3/06

CPC classification number: C03B20/00 ,  C03B19/06 ,  C03C1/006 ,  C03C3/06 ,  C03B2201/02 ,  C03C2203/26

Abstract: A method for producing a solid body of glass is described. The method comprises providing a polymerisable composition, curing the polymerisable composition to obtain a cured body, subjecting the cured body to thermal debinding to substantially remove the organic components in the cured body, and subjecting the cured body to sintering to obtain a solid body of silica glass. The polymerisable composition one or more at least partially organic polymerisable compound(s) which form a liquid composition at operating temperature and a solid source of silica as colloidal silica particles or silica glass micro-/nanoparticles dispersed in the liquid composition. The one or more at least partially organic polymerisable compounds comprises at least one organosilicon compound as a second source of silica that is liquid or solubilisable in the liquid composition at operating temperature to thereby increase the silica loading of the cured body prior to sintering. Compositions and methods for producing solid glass objects by additive manufacturing are also described.

公开(公告)号：US20240111087A1

公开(公告)日：2024-04-04

申请号：US18337144

申请日：2023-06-19

Applicant: NKT Photonics A/S

Inventor： 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: G02B6/036 ,  C03B37/027 ,  C03B37/10 ,  C03C13/04 ,  C03C25/106 ,  C03C25/1065 ,  C03C25/607 ,  G02B6/02 ,  G02B6/14 ,  G02F1/365

CPC classification number: G02B6/03694 ,  C03B37/02781 ,  C03B37/0279 ,  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 ,  C03C2201/21 ,  C03C2201/22 ,  G02B6/02366 ,  G02F1/3528

Abstract: 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：US11697610B2

公开(公告)日：2023-07-11

申请号：US16475156

申请日：2018-01-12

Applicant: Momentive Performance Materials Quartz, Inc.

Inventor： Ben Gauthier ,  Robert Koch ,  Todd Springer ,  David Xu ,  Gloriana Volio

IPC: C03C3/06 ,  A61B5/154 ,  A61J1/06 ,  A61L31/02 ,  A61M5/24 ,  A61M5/31 ,  C03B23/09 ,  C03B23/11

CPC classification number: C03C3/06 ,  A61B5/154 ,  A61J1/065 ,  A61L31/028 ,  A61M5/24 ,  A61M5/3129 ,  C03B23/092 ,  C03B23/11 ,  C03B2201/02 ,  C03C2201/02 ,  C03C2203/52 ,  Y10T428/13 ,  Y10T428/131

Abstract: A quartz glass container is shown and described herein. The quartz glass container exhibits a low concentration of surface defects on an inner surface of the container. In aspects hereof, the container may have a surface defect density of 50 or fewer surface defects per square centimeter within a 1 cm band centered 1 cm from the base of the container.

公开(公告)号：US11667560B2

公开(公告)日：2023-06-06

申请号：US17266226

申请日：2019-09-17

Applicant: Fujikura Ltd.

Inventor： Tsukasa Hosokawa

IPC: C03B37/029 ,  C03B37/027 ,  C03C13/04 ,  G02B6/02

CPC classification number: C03B37/029 ,  C03B37/02718 ,  C03C13/046 ,  G02B6/021 ,  G02B6/02395 ,  C03B2201/02 ,  C03B2201/36 ,  C03B2205/55 ,  C03B2205/62 ,  C03B2205/72

Abstract: A manufacturing method for an optical fiber, includes: drawing, while heating in a heating furnace, a lower end of an optical fiber preform that is to be an optical fiber having a core consisting of silica glass containing a rare earth element compound. The heating furnace has a temperature profile in which a temperature of the heating furnace increases to a maximum temperature Tmax and then decreases from an upstream side of the heating furnace toward a downstream side of the heating furnace. The temperature profile has a changing point at which the temperature decreases more steeply on the downstream side from a position where the maximum temperature Tmax is reached. At the maximum temperature, a temperature of the silica glass is higher than or equal to a glass transition temperature and the silica glass is in a single phase.

公开(公告)号：US20190092678A1

公开(公告)日：2019-03-28

申请号：US16189096

申请日：2018-11-13

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Bruce Warren Reding ,  Pushkar Tandon

IPC: C03B37/029 ,  C03B37/027

CPC classification number: C03B37/029 ,  C03B37/02727 ,  C03B2201/02 ,  C03B2201/06 ,  C03B2205/55 ,  C03B2205/56

Abstract: An optical fiber with low fictive temperature along with a system and method for making the optical fiber are provided. The system includes a reheating stage that heats the fiber along the process pathway to a temperature sufficient to lower the fictive temperature of the fiber by relaxing the glass structure and/or driving the glass toward a more nearly equilibrium state. The fiber is drawn from a preform, conveyed along a process pathway, cooled and subsequently reheated to increase the time of exposure of the fiber to temperatures conducive to lowering the fictive temperature of the fiber. The process pathway may include multiple reheating stages as well as one or more fiber-turning devices.

公开(公告)号：US20170073265A1

公开(公告)日：2017-03-16

申请号：US15248060

申请日：2016-08-26

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Bruce Warren Reding ,  Pushkar Tandon

IPC: C03B37/029

CPC classification number: C03B37/029 ,  C03B37/02727 ,  C03B2201/02 ,  C03B2201/06 ,  C03B2205/55 ,  C03B2205/56

Abstract: An optical fiber with low fictive temperature along with a system and method for making the optical fiber are provided. The system includes a reheating stage that heats the fiber along the process pathway to a temperature sufficient to lower the fictive temperature of the fiber by relaxing the glass structure and/or driving the glass toward a more nearly equilibrium state. The fiber is drawn from a preform, conveyed along a process pathway, cooled and subsequently reheated to increase the time of exposure of the fiber to temperatures conducive to lowering the fictive temperature of the fiber. The process pathway may include multiple reheating stages as well as one or more fiber-turning devices.

Abstract translation: 提供具有低虚拟温度的光纤以及用于制造光纤的系统和方法。 该系统包括一个再加热阶段，该加热阶段通过将玻璃结构松弛和/或将玻璃推向更接近平衡的状态，将纤维沿着加工路径加热至足以降低纤维的假想温度的温度。 将纤维从预成型件中拉出，沿着工艺路径输送，冷却并随后再加热，以增加纤维暴露于有助于降低纤维的假想温度的温度。 工艺路径可以包括多个再加热阶段以及一个或多个纤维转向装置。

公开(公告)号：US09487428B2

公开(公告)日：2016-11-08

申请号：US14640584

申请日：2015-03-06

Applicant: OFS Fitel, LLC

Inventor： Dennis J Trevor

IPC: C03B37/012

CPC classification number: C03B37/0128 ,  C03B37/01211 ,  C03B37/01237 ,  C03B37/01257 ,  C03B37/01282 ,  C03B37/01297 ,  C03B2201/02

Abstract: The embodiments disclosed herein seek to ameliorate high costs associated with the use of ultra-pure silica by using a lower-cost starting material and purifying the lower-cost starting material to an acceptable level of purity during the preform manufacturing process. In one embodiment, a nucleating compound is coated on a thin-walled silica tube, which upon cooling, forms cristobalite allowing for easy removal of the thin-walled silica tube.

Abstract translation: 本文公开的实施方案旨在通过使用较低成本的起始材料和在预成型制造过程中将较低成本起始材料纯化至可接受的纯度来改善与使用超纯二氧化硅相关的高成本。 在一个实施方案中，将成核化合物涂覆在薄壁石英管上，其在冷却时形成方英石，允许容易地除去薄壁二氧化硅管。

公开(公告)号：US20160304388A1

公开(公告)日：2016-10-20

申请号：US15099616

申请日：2016-04-15

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Tetsuya OTOSAKA

IPC: C03B37/025 ,  C03B37/029 ,  C03B37/03

CPC classification number: C03B37/0142 ,  C03B37/01446 ,  C03B37/0146 ,  C03B2201/02 ,  C03B2207/52

Abstract: A porous glass base material sintering method comprising measuring a feeding speed Vf of a porous glass base material and a movement speed Vw of a bottom end of the glass base material; performing a sintering treatment of the porous glass base material presetting, for each feeding distance L of the porous glass base material, a greater-than-1 target value αS (L) of an elongation rate in a straight body portion of the porous glass base material calculated based on a ratio Vw/Vf, and controlling at least one of a temperature of the heating furnace and a feeding speed of the porous glass base material such that a measured value α of the elongation rate of the porous glass base material matches with the target value αS (L).

Abstract translation: 一种多孔玻璃基材烧结方法，包括测量多孔玻璃基材的进料速度Vf和玻璃基材的底端的移动速度Vw; 对于多孔玻璃基材的每个进给距离L，对多孔玻璃基材进行预浸的烧结处理，在多孔玻璃基材的直体部分中的伸长率大于1的目标值αS（L） 基于比率Vw / Vf计算的材料，并且控制加热炉的温度和多孔玻璃基材的进料速度中的至少一个，使得多孔玻璃基材的延伸率的测量值α与 目标值αS（L）。

公开(公告)号：US09409810B2

公开(公告)日：2016-08-09

申请号：US14390991

申请日：2013-03-20

Applicant: Heraeus Quarzglas GmbH & Co KG

Inventor： Walter Lehmann ,  Thomas Kayser

IPC: C03B20/00 ,  C03B19/09 ,  C03B19/10 ,  C03C23/00

CPC classification number: C03B20/00 ,  C03B19/095 ,  C03B19/1005 ,  C03B19/107 ,  C03B19/1095 ,  C03B2201/02 ,  C03B2201/03 ,  C03C23/0075

Abstract: The production of quartz glass granules comprises the granulation of pyrogenically produced silicic acid and the formation of a SiO2 granulate (9), the drying and cleaning of the SiO2 granulate (9) by heating in an atmosphere containing halogen, and the vitrification of the SiO2 granulate (9) under a treatment gas which contains at least 30% by volume of helium and/or hydrogen. This process is time-consuming and expensive. In order to provide a method which, starting from a porous SiO2 granulate (9), allows the cost-effective production of dense, synthetic quartz glass granules suitable for melting bubble-free components of quartz glass, the invention proposes that the cleaning and vitrification of the SiO2 granulate (9) and a post-treatment of the vitrified quartz glass granules are carried out in each case in a rotary tube (6) of a rotary kiln (1), said rotary tube rotating about a central axis (7), wherein the rotary tube (6) comprises an inner wall made of a ceramic material during vitrification, and wherein the vitrified quartz glass granules are subjected to a post-treatment during a treatment period of at least 10 minutes in an atmosphere which contains less than 20% of helium or hydrogen at a treatment temperature of 300° C. or more.

Abstract translation: 石英玻璃颗粒的生产包括热解产生的硅酸的成粒和SiO 2颗粒的形成（9），通过在含卤素的气氛中加热来干燥和清洁SiO 2颗粒（9），并且SiO 2的玻璃化 颗粒（9）在含有至少30体积％的氦和/或氢气的处理气体下。 这个过程是耗时且昂贵的。 为了提供从多孔SiO 2颗粒（9）开始的方法，可以成本有效地生产适合于熔化石英玻璃的无气泡组分的致密合成石英玻璃颗粒，本发明提出了清洁和玻璃化 的二氧化硅颗粒（9）的后处理和玻璃化的石英玻璃颗粒的后处理在每种情况下在旋转窑（1）的旋转管（6）中进行，所述旋转管围绕中心轴线（7）旋转， 其中旋转管（6）在玻璃化期间包括由陶瓷材料制成的内壁，并且其中所述玻璃化石英玻璃颗粒在至少10分钟的处理期间在包含小于 在300℃或更高的处理温度下，20％的氦气或氢气。