中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

124 records (took 0.015 seconds)

    Germanium silicon oxynitride high index films for planar waveguides
    82.
    发明授权
    Germanium silicon oxynitride high index films for planar waveguides 有权
    锗硅氮氧化物用于平面波导的高折射率膜

    公开(公告)号：US06449420B1

    公开(公告)日：2002-09-10

    申请号：US10068968

    申请日：2002-02-07

    Applicant: Ikerionwu Asiegbu Akwani ,  Robert Alan Bellman ,  Thomas Paul Grandi ,  Paul Arthur Sachenik

    Inventor： Ikerionwu Asiegbu Akwani ,  Robert Alan Bellman ,  Thomas Paul Grandi ,  Paul Arthur Sachenik

    IPC: G02B600

    CPC classification number: C01B21/0821 ,  C01P2006/32 ,  C01P2006/60 ,  C03B19/1453 ,  C03B32/00 ,  C03B2201/24 ,  C03B2201/31 ,  C03C3/045 ,  C03C3/111 ,  C03C2201/24 ,  C03C2201/31 ,  Y10T428/265

    Abstract: A composition represented by the formula Si1−xGexO2(1−y)N1.33y, wherein x is from about 0.05 to about 0.6 and y is from about 0.14 to about 0.74 exhibits properties highly suited for use in fabricating waveguides for liquid crystal based optical devices. In particular, the compositions have an index of refraction of from about 1.6 to about 1.8 for light at a wavelength of 1550 nm, and/or a coefficient of thermal expansion of from about 2.5×10−6°C−1 to about 5.0×10−6° C.−1. The compositions also have inherently low hydrogen content, and a high hydrogen permeability which allows better hydrogen removal by thermal annealing to provide a material which exhibits low optical losses and better etching properties than alternative materials.

    Abstract translation: 由式Si1-xGexO2（1-y）N1.33y表示的组合物，其中x为约0.05至约0.6，y为约0.14至约0.74，表现出非常适合用于制造液晶基光学波导的性能 设备。 特别地，组合物对于波长1550nm的光具有约1.6至约1.8的折射率，和/或约2.5×10-6℃-1至约5.0×10-3的热膨胀系数， 6℃-1。 组合物还具有固有的低氢含量和高的氢渗透性，其允许通过热退火更好的氢去除以提供与替代材料相比表现出低的光损耗和更好的蚀刻性能的材料。

    Sol-gel process for fabricating germanium-doped silica article
    84.
    发明授权
    Sol-gel process for fabricating germanium-doped silica article 有权
    用于制造锗掺杂二氧化硅制品的溶胶 - 凝胶法

    公开(公告)号：US06442977B1

    公开(公告)日：2002-09-03

    申请号：US09597138

    申请日：2000-06-20

    Applicant: Suhas Bhandarkar ,  Frank J McNally ,  Thomas M Putvinski

    Inventor： Suhas Bhandarkar ,  Frank J McNally ,  Thomas M Putvinski

    IPC: C03B37016

    CPC classification number: C03C1/006 ,  C01G17/02 ,  C03B19/12 ,  C03B2201/31 ,  C03C3/06 ,  C03C2201/31 ,  C03C2203/22 ,  Y10S65/901

    Abstract: A sol-gel process for fabricating bulk, germanium-doped silica bodies useful for a variety of applications, including core rods, substrate tubes, immediate overcladding, pumped fiber lasers, and planar waveguides, is provided. The process involves the steps of providing a dispersion of silica particles in an aqueous quaternary ammonium germanate solution—typically tetramethylammonium germanate, gelling the dispersion to provide a gel body, and drying, heat treating, and sintering the body to provide the germanium-doped silica glass.

    Abstract translation: 提供了用于制造用于各种应用的体积为锗掺杂的二氧化硅体的溶胶 - 凝胶方法，包括芯棒，衬底管，立即外包层，泵浦光纤激光器和平面波导。 该方法包括以下步骤：将二氧化硅颗粒的分散体提供在锗酸季铵水溶液（通常为四甲基铵锗酸盐）中，使分散体凝胶化以提供凝胶体，并干燥，热处理和烧结体，以提供锗掺杂二氧化硅 玻璃。

    Second-order nonlinear glass material
    85.
    发明授权
    Second-order nonlinear glass material 失效
    二阶非线性玻璃材料

    公开(公告)号：US06380109B1

    公开(公告)日：2002-04-30

    申请号：US09511716

    申请日：2000-02-23

    Applicant: Jun Abe ,  Seiki Ejima ,  Akira J. Ikushima ,  Takumi Fujiwara

    Inventor： Jun Abe ,  Seiki Ejima ,  Akira J. Ikushima ,  Takumi Fujiwara

    IPC: C03C1304

    CPC classification number: C03C23/009 ,  C03B19/1453 ,  C03B2201/21 ,  C03B2201/23 ,  C03B2201/31 ,  C03B2203/26 ,  C03C3/06 ,  C03C23/002 ,  C03C23/007 ,  C03C23/0095 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2201/31 ,  C03C2203/54 ,  G02F1/3555 ,  G02F1/3558

    Abstract: There is disclosed second-order nonlinear glass material wherein a part having second-order nonlinearity contain Ge, H and OH and second-order nonlinear optical constant d of 1 pm/V or more, and a method for producing second-order nonliner glass material comprising treating a porous class material containing Ge with hydrohen, sintering it and subjecting it to a ultraviolet poling treatment. There can be provided second-order nonlinger glass material having second-order nonlinearity which is a sufficiently high and has a sufficiently long lifetime for a practical purpose, in use of the glass material for optical elements or the like.

    Abstract translation: 公开了二次非线性玻璃材料，其中具有二次非线性的部分包含Ge，H和OH以及二阶非线性光学常数d为1μm/ V以上，以及二阶非线性玻璃材料的制造方法 包括用氢氧化物处理含有Ge的多孔类材料，烧结并对其进行紫外线极化处理。 在使用光学元件等的玻璃材料时，可以提供具有二次非线性的二阶非线性玻璃材料，该二阶非线性度足够高并且在实际应用中具有足够长的使用寿命。

    Method for making glasses containing rare earth fluorides
    86.
    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。

    Light amplifying optical fiber
    87.
    发明申请
    Light amplifying optical fiber 审中-公开
    光放大光纤

    公开(公告)号：US20020003937A1

    公开(公告)日：2002-01-10

    申请号：US09897140

    申请日：2001-07-03

    Applicant: THE FURUKAWA ELECTRIC CO., LTD.

    Inventor： Keiichi Aiso

    IPC: G02B006/16

    CPC classification number: C03C4/10 ,  C03C3/06 ,  C03C4/0071 ,  C03C13/045 ,  C03C2201/31 ,  C03C2201/32 ,  C03C2201/3476 ,  C03C2201/36 ,  H01S3/06708 ,  H01S3/06716 ,  H01S3/06729 ,  H01S3/06754

    Abstract: In an optical communication and the like, a light amplifying optical fiber is capable of amplifying an optical signal having a wavelength in the vicinity of at least 1.57 to 1.62 nullm by a high gain. A cladding (5) is formed on the side of an outer peripheral portion of a core (1) to which erbium is added, and a refractive index of the cladding is smaller than that of the core (1). A relative refractive index difference nullnullnull of the core (1) with respect to the cladding (5) is made equal to 0.3% or larger, and also equal to 1% or smaller. While a composition of the core (1) is made of ErnullAl2O3nullGeO2nullSiO2, a composition of the cladding (5) is made of SiO2, erbium is added to the entire region of the core, and concentration of this erbium is selected to be 1,000 wtppm, and also a cut-off wavelength of the optical fiber is selected to be 1,400 nm. While the cut-off wavelength of the optical fiber is made constant, since the relative refractive index difference nullnullnull is selected to be an optimum value, a diameter of the core may become an optimum value. Lowering of the gain caused by a bending loss of the optical fiber can be avoided, and an erbium absorption amount per unit length of the optical fiber can be increased, and further, a gain per unit length of the optical fiber can be increased

    Abstract translation: 在光通信等中，光放大光纤能够通过高增益来放大波长在1.57〜1.62附近的光信号。 在添加有铒的芯（1）的外周部分的一侧形成包层（5），并且包层的折射率小于芯（1）的折射率。 芯（1）相对于包层（5）的相对折射率差“DELTA”等于或大于0.3％，也等于1％或更小。 虽然芯（1）的组成由Er-Al 2 O 3 -GeO 2 -SiO 2制成，但是包层（5）的组成由SiO 2制成，铒被加入到芯的整个区域，该铒的浓度为 选择为1,000重量ppm，并且光纤的截止波长也选择为1400nm。 当光纤的截止波长保持恒定时，由于相对折射率差“DELTA”被选择为最佳值，所以芯的直径可以成为最佳值。 可以避免由于光纤的弯曲损耗引起的增益的降低，并且能够提高光纤的每单位长度的铒吸收量，进一步增加光纤的单位长度的增益

    Increasing the retention of Ge0.sub.2 during production of glass articles
    90.
    发明授权
    Increasing the retention of Ge0.sub.2 during production of glass articles 失效
    在玻璃制品生产过程中增加GeO 2的保留

    公开(公告)号：US5641333A

    公开(公告)日：1997-06-24

    申请号：US566354

    申请日：1995-12-01

    Applicant: Gerald E. Burke ,  Carlton M. Truesdale

    Inventor： Gerald E. Burke ,  Carlton M. Truesdale

    IPC: C03B8/04 ,  C03B19/14 ,  C03C1/02 ,  C03C3/06 ,  C03B19/01

    CPC classification number: C03C3/06 ,  C03B19/1415 ,  C03C1/028 ,  C03B2201/31 ,  C03B2207/87 ,  C03C2201/30 ,  C03C2201/31 ,  C03C2203/40

    Abstract: A method for forming a GeO.sub.2 -doped SiO.sub.2 glass article by depositing glass particles to form a porous preform and then drying and sintering the porous preform. A precursor of SnO.sub.2 is also present in the reactant stream used to form the particles, whereby the reaction produces particles of glass that contain GeO.sub.2, SiO.sub.2 and SnO.sub.2. The presence of SnO.sub.2 in the particles reduces the reaction of GeO.sub.2 with chlorine to form GeCl.sub.4 during the drying step. The GeCl.sub.4 that would have formed would have either escaped from the porous preform or caused GeO.sub.2 to be re-deposited in an undesirable portion of the preform. The retention of GeO.sub.2 in the article is therefore enhanced.

    Abstract translation: 一种用于通过沉积玻璃颗粒以形成多孔预型体然后干燥和烧结多孔预型体来形成掺杂了GeO 2的SiO 2玻璃制品的方法。 用于形成颗粒的反应物流中也存在SnO 2的前体，由此反应产生含有GeO 2，SiO 2和SnO 2的玻璃颗粒。 在干燥步骤中，SnO 2在颗粒中的存在减少了GeO 2与氯反应形成GeCl4。 将形成的GeCl 4将从多孔预制件中逸出，或者使GeO 2重新沉积在预成型件的不期望的部分中。 因此，提高了GeO2在制品中的保留性。

Patent Agency Ranking