公开(公告)号：US5201920A

公开(公告)日：1993-04-13

申请号：US823610

申请日：1992-01-17

Applicant: Hartmut Schneider ,  Armin Staudt

Inventor： Hartmut Schneider ,  Armin Staudt

IPC: C03B37/023 ,  C03B37/027

CPC classification number: C03B37/023 ,  C03B37/027 ,  C03B2201/82 ,  Y10S65/16 ,  Y10S65/90

Abstract: A method for manufacturing optical fibers from halide glass is provided. The method includes the steps of drawing a glass mass into a fiber in a dry gas atmosphere which contains a drying agent. In a further step of the process, an OH band which may still be present can be reduced by treating the fiber with a gaseous drying agent.

Abstract translation: 提供了一种从卤化物玻璃制造光纤的方法。 该方法包括以下步骤：在含有干燥剂的干燥气体气氛中将玻璃物质拉入纤维中。 在该方法的另一步骤中，可以通过用气态干燥剂处理纤维来还原可能存在的OH带。

公开(公告)号：US5185021A

公开(公告)日：1993-02-09

申请号：US587946

申请日：1990-09-24

Applicant: Kiyotaka Miura ,  Toshiharu Yamashita

Inventor： Kiyotaka Miura ,  Toshiharu Yamashita

IPC: G02B6/00 ,  C03B17/02 ,  C03B37/012

CPC classification number: C03B17/025 ,  C03B37/01274 ,  C03B2201/80 ,  C03B2201/82 ,  C03B2205/04 ,  Y10S65/16

Abstract: In a method of manufacturing a preform for a nonoxide glass fiber, cladding and core glass materials are placed in a cylinder of an extrusion apparatus such that ground end faces of the respective cladding and core glass materials are in contact with each other and such that the cladding glass material is located adjacent a molding section of the extrusion apparatus. The cladding and core glass materials are heated within inert-gas atmosphere, to their respective temperatures equal to or below their respective sag points and equal to or above their respective crystallization start temperatures. An extrusion punch of the extrusion apparatus is pushed within the atmosphere, to extrude the cladding and core glass materials through a molding nozzle in the molding section while the cladding and core glass materials are in fusible contact with each other, thereby forming the preform of a core and cladding structure. The preform is gradually cooled within a liner connected to the molding section within the atmosphere. Alternatively, an over-cladding glass material may be placed in the cylinder such that the over-cladding material is located adjacent the molding section, and the cladding glass material is located between the over-cladding and core glass materials.

公开(公告)号：US5078768A

公开(公告)日：1992-01-07

申请号：US632197

申请日：1990-12-21

Applicant: Ishar D. Aggarwal ,  Barry B. Harbison

Inventor： Ishar D. Aggarwal ,  Barry B. Harbison

IPC: C03B19/06 ,  C03B32/00 ,  C03B37/012

CPC classification number: C03B37/01282 ,  C03B19/06 ,  C03B32/00 ,  C03B2201/82 ,  Y02P40/57 ,  Y10S501/904 ,  Y10S65/16

Abstract: Defect-free fluoride glass materials are made by hot isostatic pressing (HIP) of a fluoride glass. The process may be used to manufacture preforms or bulk fluoride glass. The external pressure applied during HIP squeezes bubbles from the glass and permits the use of a wider range of working temperatures than ordinarily available, thereby reducing crystallization defects.

Abstract translation: 无氟氟化物玻璃材料由氟化玻璃的热等静压（HIP）制成。 该方法可用于制造预成型件或块状氟化物玻璃。 在HIP期间施加的外部压力从玻璃挤压气泡并允许使用比通常可用的更宽的工作温度范围，从而减少结晶缺陷。

公开(公告)号：US4895813A

公开(公告)日：1990-01-23

申请号：US103229

申请日：1987-09-30

Applicant: Jerry R. Bautista ,  Matthijs M. Broer ,  Allan J. Bruce ,  James W. Fleming ,  Kenneth L. Walker

Inventor： Jerry R. Bautista ,  Matthijs M. Broer ,  Allan J. Bruce ,  James W. Fleming ,  Kenneth L. Walker

IPC: C03B37/014 ,  C03B37/012 ,  C03C3/32 ,  G02B6/00

CPC classification number: C03C3/325 ,  C03B37/01265 ,  C03B37/01277 ,  C03B2201/82 ,  Y10S65/16

Abstract: A new method for fabricating devices which include multicomponent metal halide glasses, e.g., multicomponent metal halide glass optical fibers, is disclosed. In accordance with the inventive method, a multicomponent metal halide glass body, essentially free of crystallites, is produced by cooling essentially every portion of a melt incorporated into the glass body at a quench rate which is necessarily greater than or equal to about 10 Kelvins per second (K/sec). This necessary quench rate is achieved by successively quenching relatively small portions of the melt, e.g., thin layers or droplets of melt material, having relatively small cross-sectional dimensions.

公开(公告)号：US4728350A

公开(公告)日：1988-03-01

申请号：US30777

申请日：1987-03-25

Applicant: Giuseppe Cocito

Inventor： Giuseppe Cocito

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04

CPC classification number: C03B37/01807 ,  C03B37/018 ,  C03C13/04 ,  C03B2201/82 ,  Y10S65/16

Abstract: The process employs solid-state halides heated at high temperature, under pressure conditions necessary to their vaporization, and obtains their condensation to a solid state on the internal surface of a glass tube, which, after collapsing, forms the preform.

Abstract translation: 该方法使用在高温下加热的固态卤化物，在其蒸发所需的压力条件下，在玻璃管的内表面上获得它们在固体状态下的冷凝，其在塌缩之后形成预成型体。

公开(公告)号：US4659355A

公开(公告)日：1987-04-21

申请号：US729273

申请日：1985-05-01

Applicant: Gwenael Maze ,  Vincent Cardin

Inventor： Gwenael Maze ,  Vincent Cardin

IPC: G02B6/00 ,  C03B19/04 ,  C03B37/012 ,  C03B37/027 ,  C03B37/028 ,  C03C13/04 ,  C03C25/02

CPC classification number: C03B37/01245 ,  C03B19/04 ,  C03B37/01211 ,  C03B37/01268 ,  C03B37/01271 ,  C03B37/01274 ,  C03B37/027 ,  C03B37/028 ,  C03C13/042 ,  C03B2201/82 ,  C03B2205/09 ,  Y02P40/57 ,  Y10S65/16

Abstract: A process for manufacturing optical fibers and components from bars or molds of fluoride glass draws out optical quality molds from highly pure glass. The glass is stretched or fibered into optical fibers in a dry atmosphere free of dust, organic, metallic or mineral vapors. The process leads to a low hydroxyl content fluoride glass which is used in the manufacture of optical fibers and components. The dehydration of the fluoride mixture occurs during the steps of prolonged heating at under 450.degree. C. in the presence of fluoride or ammoniumbifluoride, and of holding the molten mixture at a high temperature until dehydration occurs. The drawing out, stretching, and fibering are carried out in a vacuum.

Abstract translation: 用于制造氟玻璃棒或模具的光纤和组件的方法从高纯玻璃中抽出光学质量的模具。 在无灰尘，有机，金属或矿​​物蒸汽的干燥气氛中，玻璃被拉伸或纤维化成光纤。 该方法导致用于制造光纤和组件的低羟基含量的氟化玻璃。 氟化物混合物的脱水在氟化物或二氟化硼存在下在450℃下长时间加热并在高温下保持熔融混合物直至发生脱水的步骤中发生。 拉伸，拉伸和纤维化在真空中进行。

公开(公告)号：US4610708A

公开(公告)日：1986-09-09

申请号：US747769

申请日：1985-06-24

Applicant: Ahmad Sarhangi ,  George W. Scherer

Inventor： Ahmad Sarhangi ,  George W. Scherer

IPC: C03B37/018 ,  C03B37/027

CPC classification number: C03B37/018 ,  C03B37/01838 ,  C03B2201/82 ,  Y10S65/16

Abstract: In the manufacture of preforms for metal halide optical fibers by the vapor deposition of metal halide layers on the inside surface of a silicate glass substrate tube, silicon release from the tube side wall by fluorine-containing reactants used in the vapor deposition process is reduced by the preliminary application of a slurry coating of a sinterable, fluorine-resistant metal halide or other glass composition which is dried and sintered to a passivation layer.

Abstract translation: 在通过在硅酸盐玻璃基板管的内表面上气相沉积金属卤化物层来制造金属卤化物光纤预成型件时，通过在气相沉积工艺中使用的含氟反应物从管侧壁释放的硅被减少 将可烧结的耐氟金属卤化物或其它玻璃组合物的浆料涂料预先施加到干燥和烧结到钝化层上。

公开(公告)号：US4451116A

公开(公告)日：1984-05-29

申请号：US230923

申请日：1981-02-02

Applicant: Douglas A. Pinnow ,  Anthony L. Gentile ,  Arlie G. Standlee ,  Arthur J. Timper

Inventor： Douglas A. Pinnow ,  Anthony L. Gentile ,  Arlie G. Standlee ,  Arthur J. Timper

IPC: C03B37/012 ,  C03B37/023 ,  C03C13/00 ,  G01J5/08 ,  G02B6/00 ,  G02B6/10 ,  G02B6/44 ,  G02B5/14 ,  C03B37/025 ,  C03B37/075

CPC classification number: G02B6/4414 ,  C03B37/023 ,  C03C13/008 ,  G02B6/102 ,  G02B6/4402 ,  C03B2201/82 ,  C03B2201/84 ,  C03B2205/04

Abstract: There is disclosed a fiber optic waveguide which is particularly suited for infrared radiation transmission at extended wavelengths. The core of the waveguide is fabricated from heavy ionic compounds selected from metal halides in order to achieve such extended infrared transparency. While it is impossible to prepare these materials into optical fibers using conventional fiber drawing techniques, the present invention teaches how such materials may be prepared into optical fibers using an extrusion process at elevated temperatures and high pressures.

Abstract translation: 公开了一种特别适用于扩展波长的红外辐射传输的光纤波导。 波导的核心由选自金属卤化物的重离子化合物制成，以实现这种延长的红外透明度。 虽然不可能使用常规的纤维拉伸技术将这些材料制成光纤，但是本发明教导了如何在升高的温度和高压下使用挤出工艺将这些材料制备成光纤。

公开(公告)号：US4388097A

公开(公告)日：1983-06-14

申请号：US267934

申请日：1981-05-28

Applicant: Roger R. Turk ,  Morton Robinson

Inventor： Roger R. Turk ,  Morton Robinson

IPC: C03B11/08 ,  C03B19/06 ,  C03B19/09 ,  C03C3/32 ,  C03B23/20 ,  C03C3/18

CPC classification number: C03B11/08 ,  C03B11/088 ,  C03B19/06 ,  C03B19/09 ,  C03C3/325 ,  C03B2201/82 ,  C03B2215/44 ,  Y10S65/16

Abstract: Hot pressing of fluoride glasses is provided. These glasses are synthesized from ZrF.sub.4 -BaF.sub.2 and HfF.sub.4 -BaF.sub.2 systems. Hot pressing rough blanks in a closed die made of hard, polished, optically-figured material, such as cobalt-bonded tungsten carbide, is done by pressing the glasses at a temperature between that of the softening point of the glass and its crystallization temperature and at a pressure sufficient to cause flow of the glass at the pressing temperature. As a consequence, mechanical polishing steps on all glass surfaces is eliminated, thereby minimizing surface contamination.

Abstract translation: 提供氟化玻璃的热压。 这些玻璃由ZrF4-BaF2和HfF4-BaF2系统合成。 通过在玻璃的软化点与其结晶温度之间的温度下压制眼镜，在由硬的，抛光的，光学成型的材料（例如钴结合的碳化钨）制成的封闭模具中热压粗毛坯， 在足以在压制温度下使玻璃流动的压力下。 因此，消除了所有玻璃表面上的机械抛光步骤，从而最小化表面污染。