中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

210 records (took 0.023 seconds)

    Method of fabricating optical fiber preforms with high dopant concentration and good geometry
    102.
    发明申请
    Method of fabricating optical fiber preforms with high dopant concentration and good geometry 审中-公开
    制造具有高掺杂浓度和良好几何形状的光纤预制棒的方法

    公开(公告)号：US20030077055A1

    公开(公告)日：2003-04-24

    申请号：US10073697

    申请日：2002-02-11

    Applicant: JDS Uniphase Corporation

    Inventor： Richard P. Tumminelli ,  Ying Hua Zhang ,  Brian M. LaLiberte ,  Alexander Yusim

    IPC: G02B006/44 ,  D02G003/00

    CPC classification number: G02B6/03694 ,  C03B37/01807 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2203/22 ,  C03B2203/222 ,  G02B6/03638 ,  Y10T428/2933

    Abstract: An optical fiber preform is made by modifying a conventional preform tube having a cladding zone and a core zone, before its thermal collapse normally followed by fiber drawing. The modification is accomplished by depositing, e.g. by MCVD, a thin protective layer of a light-transmissive material, e.g. silica, on the inner surface of the preform tube, over the core zone, before the collapse step. The material of the protective layer has a higher viscosity than the material of the core zone. The protective layer is deposited over the inner (core) zone of the preform tube and its thickness and composition is selected to prevent excessive viscosity drop of the typically alumina-doped core zone during the collapse step. The provision of the protective, viscosity-controlling protective layer is helpful in maintaining good roundness of the collapsed preform tube.

    Abstract translation: 光纤预制棒通过改变具有包层区和芯区的常规预制管在其热崩溃之前通常进行纤维拉伸而制成。 修饰是通过沉积，例如， 通过MCVD，透光材料的薄保护层，例如。 二氧化硅，在预成型管的内表面上，在芯部区域之前，在崩溃步骤之前。 保护层的材料比核心区域的材料具有更高的粘度。 保护层沉积在预制管的内部（芯部）区域上，并且选择其厚度和组成以防止在崩溃步骤期间典型的氧化铝掺杂的芯区域的过大的粘度下降。 提供保护性，粘度控制保护层有助于保持塌缩的预制管的良好的圆度。

    Multi-tube delivery system
    103.
    发明授权
    Multi-tube delivery system 失效
    多管输送系统

    公开(公告)号：US06510710B1

    公开(公告)日：2003-01-28

    申请号：US09764912

    申请日：2001-01-17

    Applicant: Ying-Hua Zhang ,  Brian M. Laliberte ,  Ray F. Robinson

    Inventor： Ying-Hua Zhang ,  Brian M. Laliberte ,  Ray F. Robinson

    IPC: C03B37075

    CPC classification number: C03C25/105 ,  C03B37/01807 ,  C03B37/01838 ,  C03B37/027 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2207/81 ,  C03B2207/90

    Abstract: A method and apparatus are disclosed for the manufacture of an optical fiber preform having incorporated therein a comparatively high concentration of rare earth dopant material, and which thus can be drawn and processed into an optical fiber having low numerical aperture, low core attenuation, and high pumping power absorption. The high concentrations of rare earth dopant material are accomplished through either the “hybrid vapor processing” (HVP) method or a “hybrid liquid processing” (HLP) method, each capable of being practiced in combination or independently of one another. The HVP method involves the vaporization of a rare earth halogen by the exposure thereof to a sufficiently elevated temperature, independently, or contemporaneously with the transport of the resultant rare earth halogen laden vapor, into a glass forming oxidation reaction zone on a flowing stream of essentially an unreactive inert gas, such as helium. According to the HLP method, a first amount of rare earth dopant is provided according to the HVP method and/or other vapor source of rare earth dopant which is mixed with glass forming vapors to form a deposited soot layer on the internal surface of a glass tube. The soot-deposited tube is then impregnated with a dopant solution which may be formulated with a second amount of rare earth dopant. The tube is then thermally collapsed resulting in an optical preform with a an enhanced amount of incorporated first and second amounts of rare earth dopant.

    Abstract translation: 公开了一种用于制造具有相当高浓度的稀土掺杂剂材料的光纤预制件的方法和装置，因此可以将其拉制和加工成具有低数值孔径，低内核衰减和高的光纤 抽吸功率吸收。 高浓度的稀土掺杂剂材料通过“混合蒸气处理”（HVP）方法或“混合液体处理”（HLP）方法实现，每种方法可以彼此组合或独立地实施。 HVP方法包括通过将稀土卤素的蒸发独立地或同时地将所得的含稀土卤素的蒸汽输送到基本上流动的流动的玻璃形成氧化反应区中，将稀土卤素的蒸发蒸发到足够高的温度 非反应性惰性气体，例如氦气。 根据HLP方法，根据HVP法和/或稀土掺杂剂的其它蒸汽源与玻璃形成蒸气混合，提供第一量的稀土掺杂剂，以在玻璃的内表面上形成沉积的烟灰层 管。 然后将烟灰沉积管用掺杂剂溶液浸渍，掺杂剂溶液可以用第二量的稀土掺杂剂配制。 然后将管热收缩，导致具有增加量的掺入的第一和第二量的稀土掺杂剂的光学预制件。

    Process for making rare earth doped optical fiber
    105.
    发明申请
    Process for making rare earth doped optical fiber 有权
    制造稀土掺杂光纤的工艺

    公开(公告)号：US20020124601A1

    公开(公告)日：2002-09-12

    申请号：US09800291

    申请日：2001-03-06

    Inventor： Tarun Bandyopadhyay ,  Ranjan Sen ,  Shyamal Kumar Bhadra ,  Kamal Dasgupta ,  Mukul Chandra Paul

    IPC: C03B037/075

    CPC classification number: C03B37/01838 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  Y02P40/57

    Abstract: The present invention provides an improved process for making rare earth doped preforms and fibers by a combination of MCVD technique and solution doping method, said method comprising developing matched or depressed clad structure inside a silica glass substrate tube followed by deposition of unsintered particulate layer containing GeO2 and P2O5 for formation of the core and solution doping by soaking the porous soot layer into an alcoholic/aqueous solution of RE-salts containing co-dopants like AlCl3/Al(NO3)3 in definite proportion, controlling the porosity of the soot, dipping period, strength of the solution and the proportion of the codopants to achieve the desired RE ion concentration in the core and minimize the core clad boundary defects and followed by drying, oxidation, dehydration and sintering of the RE containing porous deposit and collapsing at a high temperature to produce the preform and overdladding with silica tubes of suitable dimensions and fiber drawing to produce fibers.

    Abstract translation: 本发明提供了一种通过MCVD技术和溶液掺杂方法的组合制备稀土掺杂预成型件和纤维的改进方法，所述方法包括在石英玻璃基板管内形成匹配或凹陷的包层结构，随后沉积含有GeO 2的未烧结颗粒层 和P2O5，用于通过将多孔烟灰层以一定比例浸入含有Al-Al 3+（NO 3）3的共掺杂剂的RE盐的醇/水溶液中形成核心和溶液掺杂，控制烟灰的孔隙率，浸渍 时间，溶液的强度和共混物的比例以实现芯中期望的RE离子浓度，并使芯包覆边界缺陷最小化，随后使含RE的多孔沉积物进行干燥，氧化，脱水和烧结并在高处塌陷 温度以产生预成型件并用适当尺寸的硅胶管和纤维拉伸过度生产 纤维。

    Method for making glasses containing rare earth fluorides
    107.
    发明申请
    Method for making glasses containing rare earth fluorides 失效
    制造含稀土氟化物的玻璃的方法

    公开(公告)号：US20020017115A1

    公开(公告)日：2002-02-14

    申请号：US09915781

    申请日：2001-07-26

    Inventor： Huailiang Wei

    IPC: C03C025/66

    CPC classification number: C03C3/06 ,  C03B37/01433 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2201/50 ,  C03B2201/54 ,  C03C23/0095 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2201/34 ,  C03C2203/50

    Abstract: A method that provides a new way to embed rare earth fluorides into silicate (or germania-doped silica) glasses by means of solution chemistry. Embedding rare earth fluorides into a silicate (or germania-doped silica) glass comprises the following steps. First, form a porous silicate core preform. Second, submerge the preform into an aqueous solution of rare earth ions. Third, remove the preform from the solution and wash the outside surfaces of the preform. Fourth, submerge the preform into an aqueous solution of a fluorinating agent to precipitate rare earth trifluorides from the solution and deposit in the pores or on the wall of the preform. This is followed by drying.

    Abstract translation: 一种通过溶液化学提供将稀土氟化物嵌入硅酸盐（或氧化锗掺杂二氧化硅）玻璃的新方法的方法。 将稀土氟化物嵌入硅酸盐（或掺锗二氧化硅）玻璃中包括以下步骤。 首先，形成多孔硅酸盐芯预制件。 第二，将预成型件浸入稀土离子的水溶液中。 第三，从溶液中取出预型件并洗涤预成型件的外表面。 第四，将预制件浸入氟化剂的水溶液中以从溶液中沉淀出稀土三氟化物，并沉积在预制件的孔或壁上。 然后干燥。

    Apparatus for the manufacture of glass preforms
    109.
    发明授权
    Apparatus for the manufacture of glass preforms 有权
    用于制造玻璃预制件的设备

    公开(公告)号：US06192713B1

    公开(公告)日：2001-02-27

    申请号：US09340473

    申请日：1999-06-30

    Applicant: Ying-Hua Zhang ,  Brian M. Laliberte ,  Ray F. Robinson

    Inventor： Ying-Hua Zhang ,  Brian M. Laliberte ,  Ray F. Robinson

    IPC: C03B37075

    CPC classification number: C03C25/105 ,  C03B37/01807 ,  C03B37/01838 ,  C03B37/027 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2207/81 ,  C03B2207/90

    Abstract: A method and apparatus is disclosed for the manufacture of an optical fiber preform having incorporated therein a comparatively high concentration of rare earth dopant material, and which thus can be drawn and processed into an optical fiber having low numerical aperture, low core attenuation, and high pumping power absorption. The high concentrations of rare earth dopant material are accomplished through either the “hybrid vapor processing” (HVP) method or a “hybrid liquid processing” (HLP) method, each capable of being practiced in combination or independently of one another. The HVP method involves the vaporization of a rare earth halogen by the exposure thereof to a sufficiently elevated temperature, independently, or contemporaneously with the transport of the resultant rare earth halogen laden vapor, into a glass forming oxidation reaction zone on a flowing stream of essentially an unreactive inert gas, such as helium. According to the HLP method, a first amount of rare earth dopant is provided according to the HVP method and/or other vapor source of rare earth dopant which is mixed with glass forming vapors to form a deposited soot layer on the internal surface of a glass tube. The soot-deposited tube is then impregnated with a dopant solution which may be formulated with a second amount of rare earth dopant. The tube is then thermally collapsed resulting in an optical preform with a an enhanced amount of incorporated first and second amounts of rare earth dopant.

    Abstract translation: 公开了一种用于制造具有较高浓度的稀土掺杂剂材料的光纤预制件的方法和装置，其可以被拉伸和加工成具有低数值孔径，低磁心衰减和高的光纤 抽吸功率吸收。 高浓度的稀土掺杂剂材料通过“混合蒸气处理”（HVP）方法或“混合液体处理”（HLP）方法实现，每种方法可以彼此组合或独立地实施。 HVP方法包括通过将稀土卤素的蒸发独立地或同时地将所得的含稀土卤素的蒸汽输送到基本上流动的流动的玻璃形成氧化反应区中，将稀土卤素的蒸发蒸发到足够高的温度 非反应性惰性气体，例如氦气。 根据HLP方法，根据HVP法和/或稀土掺杂剂的其它蒸汽源与玻璃形成蒸气混合，提供第一量的稀土掺杂剂，以在玻璃的内表面上形成沉积的烟灰层 管。 然后将烟灰沉积管用掺杂剂溶液浸渍，掺杂剂溶液可以用第二量的稀土掺杂剂配制。 然后将管热收缩，导致具有增加量的掺入的第一和第二量的稀土掺杂剂的光学预型件。

    Method of fabricating optical fiber doped with rare earth element using volatile complex
    110.
    发明授权
    Method of fabricating optical fiber doped with rare earth element using volatile complex 失效
    使用挥发性络合物制造掺杂有稀土元素的光纤的方法

    公开(公告)号：US5961682A

    公开(公告)日：1999-10-05

    申请号：US745653

    申请日：1996-11-12

    Applicant: Yong-woo Lee ,  Alexey Nikolaevich Guryanov ,  Vladimir Fedororich Khopin ,  Dmitry D. Gusovsky

    Inventor： Yong-woo Lee ,  Alexey Nikolaevich Guryanov ,  Vladimir Fedororich Khopin ,  Dmitry D. Gusovsky

    IPC: G02B6/00 ,  C03B37/018 ,  C03B37/027

    CPC classification number: C03B37/01807 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2207/81 ,  C03B2207/90

    Abstract: A method of fabricating an optical fiber doped with a rare earth component using a volatile complex, which flattens the light frequency response under a stimulated emission of radiation principle using a modified chemical vapor deposition method. Silicon tetrachloride (SiCl.sub.4) and oxygen are injected into a quartz reaction tube under a heating process, so that a cladding layer is repeatedly deposited. Then, a volatile organic metal chelate, silicon tetrachloride and oxygen are injected into the quartz reaction tube, and then heated and water-cooled to form a porous layer. At the same time, a rare earth element is deposited on the porous layer, to thereby form a core layer. Thereafter, via a high heating process, a preform is completed. Then, an optical fiber is obtained from the preform via a drawing-out process. Here, hydroxide ions (OH.sup.-) which occur as the organic ligand is volatilized and cause an optical loss of the optical fiber is removed as the porous layer is formed by the water-cooling, and an added rare earth content is easily controlled, so that the rare earth with high concentration is evenly distributed. Also, since the core laver adopts SiO.sub.2 and Al.sub.2 O.sub.3 as a host material instead of GeO.sub.2, the difference in a refractive index between the cladding and core layers becomes greater then 0.025, to thereby provide the optical fiber with excellent optical characteristics.

    Abstract translation: 使用挥发性络合物制造掺杂有稀土元素的光纤的方法，其使用改进的化学气相沉积法在辐射原理的受激发射下使光频率响应平坦化。 在加热过程中将四氯化硅（SiCl 4）和氧气注入石英反应管中，从而重复沉积包覆层。 然后，将挥发性有机金属螯合物，四氯化硅和氧气注入石英反应管中，然后加热并水冷以形成多孔层。 同时，在多孔层上沉积稀土元素，从而形成芯层。 此后，通过高加热工艺，完成预制件。 然后，通过拉出工艺从预制棒获得光纤。 这里，作为有机配位体发生的氢氧根离子（OH-）挥发而引起光纤的光学损失，由于通过水冷而形成多孔层，所以容易控制添加的稀土含量 高浓度稀土均匀分布。 此外，由于核心紫菜采用SiO 2和Al 2 O 3作为主体材料代替GeO 2，所以包层和芯层之间的折射率差异大于0.025，从而为光纤提供优异的光学特性。

Patent Agency Ranking