公开(公告)号：US5160358A

公开(公告)日：1992-11-03

申请号：US692457

申请日：1991-04-17

Applicant: Osamu Kondo ,  Masukazu Hirata ,  Mitsuzo Arii

Inventor： Osamu Kondo ,  Masukazu Hirata ,  Mitsuzo Arii

IPC: C03B19/12 ,  C03B37/016 ,  C03C23/00

CPC classification number: C03B37/016 ,  C03B19/12 ,  C03C23/0095 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/54 ,  C03B2203/22 ,  Y02P40/57 ,  Y10S65/901

Abstract: A process for easily producing a silica glass plate having an internal refractive index distribution suitable for a planar optical waveguide involves carrying out the following steps.(a) A porous silica gel plate produced by a sol-gel method is kept in a reactor, the pressure of which is reduced to a substantially vacuum state.(b) Germanium tetrachloride gas is introduced into the reactor at a partial pressure appropriate to establish an absorption equilibrium between a desired concentration of germanium tetrachloride in said porous silica gel plate and a partial pressure of germanium tetrachloride introduced.(c) The partial pressure of germanium tetrachloride in step (b) is reduced so as to desorb germanium tetrachloride from the surface of the porous silica gel plate.(d) The porous silica gel plate having a described concentration distribution is brought into contact with water within or outside the reactor so as to fix the distribution.(e) The porous silica gel plate is calcined at a temperature of not less than 900.degree. C. to render it nonporous.

Abstract translation: 用于容易地生产具有适合于平面光波导的内部折射率分布的石英玻璃板的方法包括进行以下步骤。 （a）将通过溶胶 - 凝胶法制备的多孔硅胶板保持在反应器中，其压力降低至基本上真空状态。 （b）将四氯化锗气体以适于建立所述多孔硅胶板中所需浓度的四氯化锗与引入的四氯化锗的分压之间的吸收平衡的分压引入反应器。 （c）步骤（b）中的四氯化锗的分压降低，从而从多孔硅胶板的表面解吸四氯化锗。 （d）具有所述浓度分布的多孔硅胶板与反应器内部或外部的水接触以固定分布。 （e）多孔硅胶板在不低于900℃的温度下煅烧，使其无孔。

公开(公告)号：US4902325A

公开(公告)日：1990-02-20

申请号：US928727

申请日：1986-11-10

Applicant: Michihisa Kyoto ,  Minoru Watanabe ,  Shigeru Tanaka ,  Motohiro Nakahara

Inventor： Michihisa Kyoto ,  Minoru Watanabe ,  Shigeru Tanaka ,  Motohiro Nakahara

IPC: C03B37/14 ,  C03B8/04 ,  C03B19/14 ,  C03B20/00 ,  C03B37/014 ,  G02B6/00

CPC classification number: C03B37/0146 ,  C03B37/01446 ,  C03B2201/28 ,  C03B2201/31 ,  Y10S65/90

Abstract: A method for producing a glass preform for an optical fiber comprising forming a fine glass particle mass by flame hydrolysis of a glass raw material, dehydrating the fine glass particle mass in an oxygen atmosphere containing chlorine or a chlorine-containing compound at such temperature that the soot preform is not considerably shrunk and heating the soot preform at a temperature at which the soot preform is sintered and made transparent, the glass preform produced by which method contains less hydroxyl groups, structural defects and an optical fiber fabricated from said glass preform has stable light transmission characteristics for a long time.

Abstract translation: 一种光纤用玻璃预制体的制造方法，其特征在于，通过玻璃原料的火焰水解形成微细玻璃粒子群，在含有氯或含氯化合物的氧气氛中使微细玻璃粒子物质脱水， 烟炱预制件不会显着收缩，并且在烟炱预制件被烧结和制成透明的温度下加热烟炱预制件，由该方法制备的玻璃预制件含有较少的羟基，结构缺陷和由所述玻璃预制件制成的光纤具有稳定 光传输特性长时间。

公开(公告)号：US4680048A

公开(公告)日：1987-07-14

申请号：US782334

申请日：1985-10-01

Applicant: Masanobu Motoki ,  Nobutaka Matsuo ,  Sadao Kanbe ,  Haruo Osafune ,  Yoshitaka Itoh

Inventor： Masanobu Motoki ,  Nobutaka Matsuo ,  Sadao Kanbe ,  Haruo Osafune ,  Yoshitaka Itoh

IPC: C01B33/152 ,  C03B8/02 ,  C03B19/12 ,  C03B37/016 ,  C03C1/00

CPC classification number: C03B19/12 ,  C03B37/016 ,  C03C1/006 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/24 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/50 ,  Y02P40/57 ,  Y10S65/901

Abstract: A sol-gel method of preparing doped glass articles is provided. The glass is formed by preparing a sol solution containing hydrolyzed silicon alkoxide and ultrafine particle silica. The sol solution can also include a dopant. The sol solution is gelled in a container, dried and sintered to yield the doped silica glass articles.

Abstract translation: 提供了制备掺杂玻璃制品的溶胶 - 凝胶法。 通过制备含有水解的硅醇盐和超细颗粒二氧化硅的溶胶溶液形成玻璃。 溶胶溶液还可以包括掺杂剂。 将溶胶溶解在容器中，干燥并烧结，得到掺杂的石英玻璃制品。

公开(公告)号：US4676814A

公开(公告)日：1987-06-30

申请号：US866052

申请日：1986-05-21

Applicant: Dieter Ross ,  Hans-Ulrich Bonewitz ,  Uwe Christiansen ,  Karl-Friedrich Klein ,  Albert Muhlich ,  Karlheinz Rau ,  Wolfgang Ruffing ,  Fritz Simmat ,  Anton Steinkohl ,  Ralf Takke

Inventor： Dieter Ross ,  Hans-Ulrich Bonewitz ,  Uwe Christiansen ,  Karl-Friedrich Klein ,  Albert Muhlich ,  Karlheinz Rau ,  Wolfgang Ruffing ,  Fritz Simmat ,  Anton Steinkohl ,  Ralf Takke

IPC: G02B6/00 ,  C03B8/04 ,  C03B19/14 ,  C03B20/00 ,  C03B37/01 ,  C03B37/014 ,  C03B37/018 ,  C23C16/40 ,  C23C16/453 ,  C03C25/02 ,  C03B37/027

CPC classification number: C03B37/0142 ,  C03B19/1423 ,  C03B19/1476 ,  C03B19/1492 ,  C03B37/0148 ,  C03B37/01493 ,  C23C16/402 ,  C23C16/453 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/42 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2207/46 ,  C03B2207/50 ,  C03B2207/54 ,  C03B2207/62 ,  C03B2207/64 ,  C03B2207/66

Abstract: Disclosed is a method for the axial building up, in a vertical arrangement, of a hollow cylindrical soot body having no internal support and consisting substantially of silicon dioxide by means of at least one flame hydrolysis build-up burner serving for the soot production. In this method the soot is deposited at the beginning of the build-up onto an auxiliary body, and during the build-up the build-up burner and the growing soot body are rotated relative to one another, and the burner is at the same time held at an unvarying distance from the growing end of the hollow cylinder and centrally above the predetermined cross section of the upwardly growing end of the cylinder wall. The penetration of soot into the interior of the cylinder is prevented by means of a directed gas stream.

Abstract translation: 公开了一种垂直方式轴向构建一个中空圆柱形烟灰体的方法，该中空圆柱形烟灰体不具有内部支撑，并且通过用于烟灰生产的至少一个火焰水解积聚燃烧器基本上由二氧化硅组成。 在这种方法中，烟灰在积聚开始时沉积到辅助体上，并且在堆积过程中，堆积燃烧器和生长的烟灰体相对于彼此旋转，并且燃烧器处于相同状态 时间保持在与中空圆筒的生长端不同的距离处，并且在气缸壁的向上生长的端部的预定横截面的中心上方。 通过有向气流阻止烟灰渗入气缸的内部。

公开(公告)号：US4395270A

公开(公告)日：1983-07-26

申请号：US253224

申请日：1981-04-13

Applicant: Michael G. Blankenship ,  Donald B. Keck

Inventor： Michael G. Blankenship ,  Donald B. Keck

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  G02B6/10 ,  C03B19/00 ,  C03B37/075

CPC classification number: C03B37/018 ,  C03B37/01217 ,  C03B37/014 ,  G02B6/024 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/42 ,  C03B2203/31

Abstract: A method of making a glass optical fiber having a core surrounded by cladding containing diametrically opposed regions of different TCE than the cladding. Three manufacturing techniques are disclosed. (1) A first glass rod having core and cladding glass is placed centrally in a glass tube. Rods of glass having a TCE different from that of the cladding glass are put on opposite sides of the first rod. Rods of cladding glass are placed in the interstices. (2) A soot preform is deposited on a rotating mandrel. In one embodiment, mandrel rotation is halted to deposit one longitudinally extending region and then rotated 180.degree. to deposit the other such region. In a modified embodiment the mandrel continuously rotates and the deposition burner is continuously supplied with reactant gas for forming a base glass and is also provided with pulses of a reactant gas for modifying the base glass to form the diametrically opposed regions. (3) A CVD process is modified by inserting a pair of tubes into the substrate tube when the longitudinally extending regions are to be deposited. There is passed between the first tube and the pair of tubes a gas which reacts to form particles of a base glass and there is passed through the pair of tubes another gas which reacts to form dopant glass particles which combine with base glass particles to form longitudinal strips of doped base glass within the tube.

Abstract translation: 一种制造玻璃光纤的方法，其具有由包含不同TCE的直径相对的区域的包层包围的芯。 公开了三种制造技术。 （1）将具有芯和包层玻璃的第一玻璃棒放置在玻璃管中央。 具有与包层玻璃不同的TCE的玻璃棒放在第一棒的相对侧上。 包层玻璃棒放置在间隙中。 （2）烟灰预制件沉积在旋转的心轴上。 在一个实施例中，停止心轴旋转以沉积一个纵向延伸的区域，然后旋转180度以沉积另一个这样的区域。 在改进的实施例中，心轴连续旋转，并且沉积燃烧器连续地供应有用于形成基础玻璃的反应气体，并且还具有用于改变基础玻璃以形成直径相对的区域的反应气体的脉冲。 （3）当要沉积纵向延伸区域时，通过将一对管插入衬底管中来修饰CVD工艺。 在第一管和一对管之间通过气体，其反应形成基础玻璃的颗粒，并且通过该对管另一气体，其反应形成掺杂剂玻璃颗粒，其与基础玻璃颗粒结合以形成纵向 管内的掺杂基底玻璃条。

公开(公告)号：US4363647A

公开(公告)日：1982-12-14

申请号：US263418

申请日：1981-05-14

Applicant: David L. Bachman ,  William C. Lewis, Jr. ,  Peter C. Schultz ,  Francis W. Voorhees

Inventor： David L. Bachman ,  William C. Lewis, Jr. ,  Peter C. Schultz ,  Francis W. Voorhees

IPC: C03B19/14 ,  C03B19/06 ,  C03B20/00

CPC classification number: C03B19/1492 ,  C03B19/1423 ,  C03B19/1484 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/42 ,  C03B2207/52 ,  C03B2207/54 ,  C03B2207/66

Abstract: This invention is directed to the production of fused silica-containing glass articles of large cross section or diameter wherein at least a surface layer thereof exhibits very high optical quality. The method involves depositing via flame hydrolysis/oxidation reaction a layer of fused silica-containing soot onto a supporting bait, essentially immediately thereafter applying a source of heat concentrated uniformly across the breadth of the soot deposit, but focused only over a relatively small area thereof, to raise the temperature within that area sufficiently to uniformly consolidate the soot in that area into a non-porous glass, and then cooling the glass to room temperature.

Abstract translation: 本发明涉及生产具有大截面或直径的熔融二氧化硅玻璃制品，其中至少其表面层具有非常高的光学质量。 该方法包括通过火焰水解/氧化反应将一层含熔融二氧化硅的烟灰沉积在支撑诱饵上，基本上立即施加均匀浓缩的热源，在烟灰沉积物的宽度上，但仅聚焦在相对小的区域上 ，以使该区域内的温度足以使该区域中的烟灰均匀地固结成无孔玻璃，然后将玻璃冷却至室温。

公开(公告)号：US4360371A

公开(公告)日：1982-11-23

申请号：US249022

申请日：1981-03-30

Applicant: Michael G. Blankenship ,  Donald B. Keck ,  Arnab Sarkar

Inventor： Michael G. Blankenship ,  Donald B. Keck ,  Arnab Sarkar

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  G02B6/10 ,  C03B19/00 ,  C03B37/075

CPC classification number: G02B6/105 ,  C03B37/01217 ,  C03B37/014 ,  C03B37/01486 ,  C03B37/018 ,  C03B37/01869 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/42 ,  C03B2203/12 ,  C03B2203/302 ,  C03B2203/31

Abstract: A single mode optical waveguide is fabricated in a manner such that the core thereof is subjected to a stress-induced birefringence. A hollow intermediate product is formed by depositing layers of cladding and core glass on the inner surface of a substrate tube. Opposite sides of the intermediate product are heated to cause it to collapse into a solid preform foreproduct having an oblong cross-section. A layer of flame hydrolysis-produced soot having a circular outer surface is deposited on the preform foreproduct and is consolidated to form a dense glass cladding layer thereon. The TCE of the outer cladding layer is different from that of the preform foreproduct on which it is deposited so that when the resultant preform is drawn into a fiber, a stress-induced birefringence exists in the core.

Abstract translation: 单模光波导以这样的方式制造，使得其芯受到应力诱导的双折射。 通过在衬底管的内表面上沉积包层和芯玻璃层形成中空的中间产物。 加热中间产物的相对侧以使其塌陷成具有长方形横截面的固体预制件前体产品。 将具有圆形外表面的火焰水解生成的烟灰层沉积在预成型件前体上并被固结以在其上形成致密的玻璃包覆层。 外包层的TCE不同于其沉积的预制品前体产品的TCE，使得当将所得的预成型件拉制成纤维时，在芯中存在应力诱导的双折射。

公开(公告)号：US4230396A

公开(公告)日：1980-10-28

申请号：US929416

申请日：1978-07-31

Applicant: Robert Olshansky ,  Arnab Sarkar

Inventor： Robert Olshansky ,  Arnab Sarkar

IPC: C03B37/018 ,  C03C13/04 ,  G02B6/028 ,  G02B5/14 ,  C03B37/075

CPC classification number: G02B6/03627 ,  C03B37/018 ,  C03B37/01861 ,  C03C13/045 ,  G02B6/0288 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/26

Abstract: A method of forming a preform or blank for a high bandwidth gradient index optical filament, the preform itself and the resulting optical filament is disclosed. The preform which ultimately forms the optical filament includes a barrier layer between a tubular starting member which comprises the cladding and the core, the index of refraction of the barrier layer being equal to or less than the index of refraction of the tubular starting member; there being no step increase in the index of refraction of the barrier layer at the barrier layer-cladding interface nor of the core at the core-barrier layer interface of the optical filament. The barrier layer is formed from a base glass, a first dopant B.sub.2 O.sub.3, and at least one other dopant which is maintained substantially constant in the barrier layer and then gradually varied during the formation of the core. The quantity of B.sub.2 O.sub.3 is also maintained substantially constant in the barrier layer but then gradually decreased during the formation of the core.

Abstract translation: 公开了一种形成用于高带宽梯度折射率光纤的预成型件或坯料的方法，预成型件本身和所得到的光纤。 最终形成光纤的预成型件包括在包括包层和芯之间的管状起始构件之间的阻挡层，阻挡层的折射率等于或小于管状起始构件的折射率; 阻挡层 - 包层界面处的阻挡层的折射率和光纤的芯阻挡层界面处的芯的折射率没有增加。 阻挡层由基底玻璃，第一掺杂剂B 2 O 3和至少一种其它掺杂剂形成，其在阻挡层中保持基本上恒定，然后在芯的形成期间逐渐变化。 在阻挡层中B 2 O 3的量也保持基本恒定，但在芯的形成期间逐渐降低。

公开(公告)号：US11808970B2

公开(公告)日：2023-11-07

申请号：US17454709

申请日：2021-11-12

Applicant: Lumentum Operations LLC

Inventor： Vincent Petit ,  Martin H. Muendel

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

CPC classification number: 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

Abstract: 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：US20170022094A1

公开(公告)日：2017-01-26

申请号：US15086169

申请日：2016-03-31

Applicant: OFS Fitel, LLC

Inventor： Man F. Yan ,  Peter I. Borel ,  Tommy Geisler ,  Rasmus V. Jensen ,  Ole A. Levring ,  Jorgen Ostgaard Olsen ,  David W. Peckham ,  Dennis J. Trevor ,  Patrick W. Wisk ,  Benyuan Zhu

IPC: C03C13/04 ,  C03B37/027 ,  G02B6/036

CPC classification number: C03C13/046 ,  C03B37/01208 ,  C03B37/01853 ,  C03B37/027 ,  C03B2201/07 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/50 ,  C03B2203/223 ,  C03B2203/23 ,  C03C3/06 ,  C03C4/10 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/28 ,  C03C2201/50 ,  G02B6/03627 ,  G02B6/0365

Abstract: An optical fiber has a core region that is doped with one or more viscosity-reducing dopants in respective amounts that are configured, such that, in a Raman spectrum with a frequency shift of approximately 600 cm−, the fiber has a nanoscale structure having an integrated D2 line defect intensity of less than 0.025. Alternatively, the core region is doped with one or more viscosity-reducing dopants in respective amounts that are configured such that the fiber has a residual axial compressive stress with a stress magnitude of more than 20 MPa and a stress radial extent between 2 and 7 times the core radius.According to another aspect of the invention a majority of the optical propagation through the fiber is supported by an identified group of fiber regions comprising the core region and one or more adjacent cladding regions. The fiber regions are doped with one or more viscosity-reducing dopants in respective amounts and radial positions that are configured to achieve viscosity matching among the fiber regions in the identified group.

Abstract translation: 根据本发明的另一方面，通过光纤的大部分光学传播由包括芯区域和一个或多个相邻包层区域的所识别的纤维区域组支撑。 纤维区域掺杂有相应量和径向位置中的一种或多种降低粘度的掺杂剂，其被配置为实现所识别的组中的纤维区域之间的粘度匹配。