中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

952 records (took 0.027 seconds)

    Sol-gel-derived optical fiber preform and method of manufacture
    351.
    发明授权
    Sol-gel-derived optical fiber preform and method of manufacture 失效
    溶胶凝胶衍生的光纤预制棒及其制造方法

    公开(公告)号：US06928220B2

    公开(公告)日：2005-08-09

    申请号：US10062748

    申请日：2002-02-01

    Applicant: Shiho Wang ,  Yasar Halefoglu ,  Chih-hsing Cheng

    Inventor： Shiho Wang ,  Yasar Halefoglu ,  Chih-hsing Cheng

    IPC: C03B19/12 ,  C03B37/012 ,  C03B37/016 ,  G02B6/16

    CPC classification number: C03B37/0124 ,  C03B19/12 ,  C03B37/01211 ,  C03B37/016 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34

    Abstract: A method forms an optical fiber preform. The method includes forming a sol-gel-derived rod having a first diameter. Forming the sol-gel-derived rod includes preparing a sol-gel solution including at least 3 mole % of a catalyst. The sol-gel solution is allowed to undergo gelation to form a wet gel monolith. The wet gel monolith is dried and shrunk by exposing the wet gel monolith to a temporal temperature profile, thereby forming a xerogel monolith. The xerogel monolith is consolidated, thereby forming the sol-gel-derived rod. The method further includes drawing the sol-gel-derived rod to substantially reduce its diameter, thereby forming a drawn rod having a second diameter less than the first diameter.

    Abstract translation: 一种方法形成光纤预制件。 该方法包括形成具有第一直径的溶胶 - 凝胶衍生的棒。 形成溶胶 - 凝胶衍生的棒包括制备包含至少3摩尔％的催化剂的溶胶 - 凝胶溶液。 使溶胶 - 凝胶溶液进行凝胶化以形成湿凝胶整料。 通过将湿凝胶整料暴露于时间温度曲线，将湿凝胶整料干燥并收缩，从而形成干凝胶整料。 将干凝胶整料固结，从而形成溶胶 - 凝胶衍生的棒。 该方法还包括拉伸溶胶 - 凝胶衍生的棒以大大减小其直径，从而形成具有小于第一直径的第二直径的拉伸棒。

    Method of manufacturing optical fiber preform using modified chemical vapor deposition including dehydration and dechlorination process and optical fiber manufactured by the method
    352.
    发明申请
    Method of manufacturing optical fiber preform using modified chemical vapor deposition including dehydration and dechlorination process and optical fiber manufactured by the method 失效
    使用改进的化学气相沉积（包括脱水和脱氯工艺）和通过该方法制造的光纤制造光纤预制棒的方法

    公开(公告)号：US20050152653A1

    公开(公告)日：2005-07-14

    申请号：US10502455

    申请日：2003-08-20

    Applicant: Ki-Wan Jang ,  Lae-Hyuk Park ,  Chan-Joo Lee

    Inventor： Ki-Wan Jang ,  Lae-Hyuk Park ,  Chan-Joo Lee

    IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  G02B6/02 ,  G02B6/16

    CPC classification number: C03B37/01853 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/28 ,  C03B2201/31 ,  G02B6/02

    Abstract: Disclosed is a method of manufacturing an optical fiber perform using MCVD including dehydration and dechlorination, which executes the following process repeatedly with changing the composition of soot generation gas according to the refractive index profile, the process including the steps of: forming a soot layer having pores on an inner wall of a deposition tube at a temperature lower than the soot sintering temperature with putting soot generation gas and oxygen gas into the rotating deposition tube; removing hydroxyl groups with keeping the pores by putting dehydration gas into the deposition tube; removing chlorine impurities existing in the soot layer with keeping the pores by putting dehydration gas into the deposition tube; and sintering the soot layer by heating the deposition tube at a temperature over the soot sintering temperature.

    Abstract translation: 本发明公开了一种使用包括脱水和脱氯在内的MCVD进行的光纤的制造方法，其通过根据折射率分布改变烟灰发生气体的组成而重复地执行以下处理，该方法包括以下步骤：形成具有 在低于烟灰烧结温度的温度下在沉积管的内壁上的孔，将烟灰产生气体和氧气放入旋转沉积管中; 通过将脱水气体放入沉积管中，保持孔隙去除羟基; 通过将脱水气体放入沉积管中来除去存在于烟灰层中的氯杂质，同时保持孔; 并且通过在超过烟灰烧结温度的温度下加热沉积管来烧结烟灰层。

    System for forming a gas flow of reactants for a doped glass material
    354.
    发明申请
    System for forming a gas flow of reactants for a doped glass material 审中-公开
    用于形成掺杂玻璃材料的反应物气流的系统

    公开(公告)号：US20050069638A1

    公开(公告)日：2005-03-31

    申请号：US10951869

    申请日：2004-09-29

    Applicant: Markku Rajala ,  Kauko Janka ,  Simo Tammela ,  Taneli Tuurnala

    Inventor： Markku Rajala ,  Kauko Janka ,  Simo Tammela ,  Taneli Tuurnala

    IPC: C03B37/014 ,  C03C21/00 ,  C03C25/60 ,  B05D5/06

    CPC classification number: C03C25/607 ,  C03B37/01413 ,  C03B2201/08 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  C03C21/007

    Abstract: A system and a method in producing a doped glass material, particularly a glass material to be used in light amplifying optical waveguides. The method comprising: bringing at least a first dopant and a second dopant of the glass material into a vaporous gas phase; controlling the vapour pressure of the gas phase of each dopant by bringing each dopant to a desired temperature which is simultaneously used to control the composition of their gas phase; and mixing each vaporous dopant with the gas flow of the basic material for the glass material, which basic material is also in a gas phase and is used as a carrier gas for the dopants, wherein said basic material and said dopants together constitute the required gas flow of so-called reactants, to be used for producing the glass material; performing the mixing so that said dopants are each mixed in turn with the same gas flow of the basic material in such an order that said desired temperatures of the dopants are increasing in relation to one another.

    Abstract translation: 用于制造掺杂玻璃材料的系统和方法，特别是用于光放大光波导的玻璃材料。 所述方法包括：将所述玻璃材料的至少第一掺杂剂和第二掺杂剂引入气相中; 通过使每种掺杂剂达到同时用于控制其气相组成的所需温度来控制每种掺杂剂的气相的蒸气压; 并且将每种气态掺杂剂与用于玻璃材料的基础材料的气流混合，该基本材料也处于气相中，并且用作掺杂剂的载气，其中所述碱性材料和所述掺杂剂一起构成所需气体 用于生产玻璃材料的所谓反应物流; 进行混合，使得所述掺杂剂各自依次以基本材料的相同气流依次混合，使得掺杂剂的所需温度相对于彼此增加。

    Method of fabricating rare earth doped optical fibre
    356.
    发明授权
    Method of fabricating rare earth doped optical fibre 有权
    稀土掺杂光纤的制造方法

    公开(公告)号：US06851281B2

    公开(公告)日：2005-02-08

    申请号：US10106868

    申请日：2002-03-27

    Applicant: Ranjan Sen ,  Mrinmay Pal ,  Mukul Chandra Paul ,  Shyamal Kumar Bhadra ,  Somesh Chatterjee ,  Kamal Dasgupta

    Inventor： Ranjan Sen ,  Mrinmay Pal ,  Mukul Chandra Paul ,  Shyamal Kumar Bhadra ,  Somesh Chatterjee ,  Kamal Dasgupta

    IPC: C03B37/018 ,  C03B37/075

    CPC classification number: C03B37/01807 ,  C03B37/01838 ,  C03B37/01853 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36

    Abstract: The present invention provides a method of fabricating rare earth doped preforms and optical fibers by a combination of modified chemical vapor deposition (MCVD) process and solution doping technique said MCVD process is used to develop matched or depressed clad structure inside a silica glass substrate tube followed by deposition of porous silica soot layer containing GeO2, P2O5 or such refractive index modifiers by the backward deposition method for formation of the core and presintering the deposited particulate layer by backward pass with flow of GeCl4 and/or corresponding dopant halides, soaking the porous soot layer into an alcoholic/aqueous solution of RE-salts containing codopants such as AlCl3 in definite proportion, drying, oxidation, dehydration and sintering of the RE containing porous deposit and by collapsing at a high temperature to produce the preform followed by drawing the fibers by known technique to produce fibers with suitable core-clad dimensions and geometry.

    Abstract translation: 本发明提供了一种通过改进的化学气相沉积（MCVD）工艺和溶液掺杂技术的组合制造稀土掺杂的预成型件和光纤的方法，所述MCVD工艺用于在石英玻璃衬底管内开发匹配或凹陷的包层结构，随后 通过用于形成芯的反向沉积方法沉积含有GeO 2，P 2 O 5或这种折射率改性剂的多孔二氧化硅烟灰层，并通过GeCl 4和/或相应的掺杂剂卤化物的流动反向通过沉积的颗粒层，浸泡多孔烟灰 将含有RE的多种沉积物的含RE的盐类，如AlCl 3的含水醇溶液/干燥，氧化，脱水和烧结，并在高温下收缩，制成预成型体，然后用纤维拉伸 已知的技术来生产具有合适的芯包层尺寸和几何形状的纤维。

    Optical fiber preform, production method thereof, and optical fiber produced from the preform
    357.
    发明授权
    Optical fiber preform, production method thereof, and optical fiber produced from the preform 有权
    光纤预制棒，其制造方法以及由该预制棒制成的光纤

    公开(公告)号：US06836605B2

    公开(公告)日：2004-12-28

    申请号：US10291813

    申请日：2002-11-12

    Applicant: Masaaki Hirano ,  Eiji Yanada ,  Masashi Onishi

    Inventor： Masaaki Hirano ,  Eiji Yanada ,  Masashi Onishi

    IPC: G02B602

    CPC classification number: C03C3/06 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/01248 ,  C03B37/0126 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/36 ,  G02B6/02285 ,  G02B6/03627

    Abstract: An optical fiber preform having a low core noncircularity and eccentricity for producing an optical fiber having an improved polarization mode dispersion, a method for producing the preform, and an optical fiber produced from the preform. The optical fiber preform is produced by the following steps. Diameter-reduced portions 11a and 11b are formed in the vicinity of the ends of the glass pipe 11. A glass rod 12 is inserted into the glass pipe 11. The glass rod 12 is fixed to the glass pipe 11 at the diameter-reduced portion 11a. The glass pipe 11 and the glass rod 12 are heat-unified from the diameter-reduced portion 11b forward to the diameter-reduced portion 11a. The optical fiber preform has a core noncircularity of at most 1.5%. The optical fiber has a polarization mode dispersion of at most 0.15 ps/km1/2 at a wavelength of 1,550 nm.

    Abstract translation: 一种具有低芯非圆度和偏心率的光纤预制件，用于制造具有改进的偏振模色散的光纤，由预成型件制造的预制棒的制造方法和光纤。 光纤预制棒通过以下步骤制造。 直径减小部分11a和11b形成在玻璃管11的端部附近。玻璃棒12插入到玻璃管11中。玻璃棒12在直径减小部分处固定到玻璃管11上 11a。 玻璃管11和玻璃棒12从直径减小部分11b向前加热到直径减小部分11a。 光纤预制棒的芯非圆度至多为1.5％。 该光纤在1,550nm的波长下具有至多0.15ps / km 1/2的偏振模色散。

    Dispersion flattened fiber with high negative dispersion and method for the manufacture thereof
    359.
    发明授权
    Dispersion flattened fiber with high negative dispersion and method for the manufacture thereof 有权
    具有高负离散性的分散平坦纤维及其制造方法

    公开(公告)号：US06754425B2

    公开(公告)日：2004-06-22

    申请号：US10669868

    申请日：2003-09-23

    Applicant: Jeong U Jeon ,  Young Tark Lee

    Inventor： Jeong U Jeon ,  Young Tark Lee

    IPC: G02B622

    CPC classification number: G02B6/03688 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  G02B6/02233 ,  G02B6/02242 ,  G02B6/02252 ,  G02B6/02261

    Abstract: The invention relates to a dispersion flattened fiber (DFF) with high negative dispersion and a manufacturing method thereof. The dispersion flattened fiber comprises a central core; ring-type cores and low refractive regions alternately formed outside the central core; a cladding surrounding outside the ring-type cores and low refractive regions; and a coating outside the cladding. Since the dispersion flattened fiber has the dispersion of −20 to −60, it has a wide range of application and can be used for various purposes in the field of optical telecommunication.

    Abstract translation: 本发明涉及具有高负离散度的分散平坦纤维（DFF）及其制造方法。 分散扁平纤维包括中心芯; 环形芯和低折射区交替地形成在中心芯之外; 围绕环型芯和低折射区域的包层; 以及在包层外部的涂层。 由于色散扁平光纤具有-20至-60的色散，因此具有广泛的应用范围，可用于光通信领域的各种用途。

    Dispersion control fiber and method of manufacturing large size preform thereof
    360.
    发明授权
    Dispersion control fiber and method of manufacturing large size preform thereof 有权
    分散控制纤维及其制造大尺寸预型体的方法

    公开(公告)号：US06711341B2

    公开(公告)日：2004-03-23

    申请号：US10166095

    申请日：2002-06-11

    Applicant: Ji-Hoon Lee ,  Mun-Hyun Do

    Inventor： Ji-Hoon Lee ,  Mun-Hyun Do

    IPC: G02B600

    CPC classification number: G02B6/02009 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/36 ,  G02B6/02219 ,  G02B6/02242 ,  G02B6/03622 ,  G02B6/03694 ,  Y02P40/57

    Abstract: A dispersion control fiber and a method of manufacturing a large size preform are provided. In one embodiment, the dispersion control fiber comprises a core composed of SiO2, GeO2, P2O5 and Freon, and a cladding composed of SiO2, GeO2, P2O5, and Freon. The P2O5 content is selected not to exceed 10% of the total weight of a compound composing the core. An embodiment of the method of manufacturing a large size preform for a dispersion control fiber by an MCVD process comprises depositing SiO2, GeO2, P2O5, and Freon in an inner periphery of a deposition tube to form a cladding layer, and depositing SiO2, GeO2, P2O5 and Freon on an inner periphery of the cladding layer to form a core layer.

    Abstract translation: 提供了一种分散控制纤维及其制造方法。 在一个实施方案中，色散控制光纤包括由SiO 2，GeO 2，P 2 O 5和氟利昂组成的芯和由SiO 2，GeO 2，P 2 O 5和氟利昂组成的包层。 选择P2O5含量不超过构成核心的化合物总重量的10％。 通过MCVD工艺制造用于分散控制纤维的大尺寸预制件的方法的一个实施方案包括在沉积管的内周中沉积SiO 2，GeO 2，P 2 O 5和氟利昂以形成包覆层，并且沉积SiO 2，GeO 2， P2O5和氟利昂在包覆层的内周上形成核心层。

Patent Agency Ranking