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    Multi-wavelength, multimode optical fibers
    201.
    发明授权
    Multi-wavelength, multimode optical fibers 有权
    多波长多模光纤

    公开(公告)号：US07421174B2

    公开(公告)日：2008-09-02

    申请号：US11511174

    申请日：2006-08-28

    Applicant: James William Fleming, Jr. ,  George Edward Oulundsen, III

    Inventor： James William Fleming, Jr. ,  George Edward Oulundsen, III

    IPC: G02B6/028

    CPC classification number: G02B6/03627 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2203/26 ,  C03C13/046 ,  G02B6/0288

    Abstract: A silicate optical fiber comprises a graded index silicate core co-doped with aluminum oxide, phosphorus oxide, germanium oxide and fluorine in unique compositions that we have discovered allow multimode, multi-wavelength operation without significant intermodal dispersion. Illustratively, the core comprises a multiplicity of compositions whose refractive indices are graded from a maximum at or near the center of the core to a minimum at the interface with the cladding. Each core composition resides within a sub-volume of a 5 dimensional phase space in which an optimum core profile shape is essentially constant over the wavelength range of operation of the fiber. For operation in the wavelength range of about 0.78 μm to 1.55 μm, each composition preferably comprises no more than approximately 6 mole % Al2O3, 9 mole % P2O5, 6 mole % GeO2, 6 mole % F, and 90-100 mole % SiO2.

    Abstract translation: 硅酸盐光纤包括与氧化铝，氧化磷，氧化锗和氟共掺杂的分级指数硅酸盐芯，其独特的组成，我们发现允许多模多波长操作，而没有显着的联合分散。 说明性地，芯包括多个组合物，其折射率从芯的中心处或附近的最大值到与包层的界面处最小。 每个核心组合物位于5维相位空间的子体积中，其中最佳核心轮廓形状在光纤的操作的波长范围上基本上是恒定的。 为了在约0.78μm至1.55μm的波长范围内操作，每个组合物优选包含不超过约6摩尔％的Al 2 O 3 N 3，9摩尔％P

    Glass-body-producing method and optical glass body and optical fiber
    208.
    发明申请
    Glass-body-producing method and optical glass body and optical fiber 有权
    玻璃体制造方法和光学玻璃体和光纤

    公开(公告)号：US20050276555A1

    公开(公告)日：2005-12-15

    申请号：US11141203

    申请日：2005-06-01

    Applicant: Tetsuya Haruna ,  Shinji Ishikawa ,  Toshiki Taru ,  Tetsutarou Katayama ,  Nobuyuki Taira

    Inventor： Tetsuya Haruna ,  Shinji Ishikawa ,  Toshiki Taru ,  Tetsutarou Katayama ,  Nobuyuki Taira

    IPC: G02B6/02 ,  C03B37/018

    CPC classification number: C03B37/01807 ,  C03B37/01876 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/22 ,  C03B2207/90

    Abstract: A method produces a glass body that contains a reduced amount of OH groups in the metallic-oxide-containing glass layer and that has a reduced amount of transmission loss due to OH groups when the glass body is transformed into an optical fiber. The production method produces an optical glass body. An optical fiber contains the optical glass body in at least one part of its region for guiding a lightwave. The production method includes the following steps: (a) introducing into a glass pipe a gas containing an organometallic compound and a glass-forming material; (b) decomposing the organometallic compound into an organic constituent and a metallic constituent; (c) heating and oxidizing the metallic constituent so that produced glass particles containing a metallic oxide are deposited on the inner surface of the glass pipe to form a glass-particle-deposited layer; and (d) consolidating the deposited layer to form a metallic-oxide-containing glass layer.

    Abstract translation: 一种方法产生玻璃体，其在含金属氧化物的玻璃层中含有少量的OH基团，并且当玻璃体转变成光纤时，其具有由OH基导致的传输损失量减少的玻璃体。 该制造方法产生光学玻璃体。 光纤在其区域的至少一部分中包含用于引导光波的光学玻璃体。 制造方法包括以下步骤：（a）向玻璃管内导入含有有机金属化合物和玻璃形成材料的气体; （b）将有机金属化合物分解成有机成分和金属成分; （c）加热和氧化金属成分，使得在玻璃管的内表面上沉积含有金属氧化物的玻璃颗粒，形成玻璃颗粒沉积层; 和（d）固结沉积层以形成含金属氧化物的玻璃层。

    Long wavelength, pure silica core single mode fiber and method of forming the same
    210.
    发明授权
    Long wavelength, pure silica core single mode fiber and method of forming the same 有权
    长波长，纯硅芯单模光纤及其形成方法

    公开(公告)号：US06947650B1

    公开(公告)日：2005-09-20

    申请号：US10840130

    申请日：2004-05-06

    Applicant: Daniel Scott Homa

    Inventor： Daniel Scott Homa

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

    CPC classification number: C03C13/04 ,  C03B37/01807 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2203/24 ,  G02B6/02

    Abstract: An optical fiber suitable to support single mode optical transmission at longer wavelengths (e.g., 1550 nm) is formed to comprise a pure silica core region and a “down doped” cladding layer. The core region is defined as having a diameter d and the cladding layer is defined has having an outer diameter D. In accordance with the present invention, single mode propagation will be supported when D/d>8.5, and is preferably in the range of 9–10.

    Abstract translation: 形成适合于支持较长波长（例如1550nm）的单模光传输的光纤，以包括纯二氧化硅芯区域和“下掺杂”包覆层。 芯区域被定义为具有直径d，并且包层具有外径D.根据本发明，当D / d> 8.5时，将支持单模传播，并且优选在 9-10。

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