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    Doped rare earth and large effective area optical fibers for fiber lasers and amplifiers
    31.
    发明公开
    Doped rare earth and large effective area optical fibers for fiber lasers and amplifiers 有权
    稀土掺杂光纤和光纤大有效面积光纤激光器和放大器

    公开(公告)号：EP2292566A2

    公开(公告)日：2011-03-09

    申请号：EP10191210.3

    申请日：2007-06-29

    Applicant: IMRA America, Inc.

    Inventor： Dong, Liang ,  Peng, Xiang

    IPC: C03C3/06 ,  C03C3/097 ,  C03C13/04 ,  C03C4/00 ,  C03B37/00

    CPC classification number: G02B6/03616 ,  C03B37/01217 ,  C03B37/0122 ,  C03B37/01838 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/34 ,  C03B2203/14 ,  C03B2203/23 ,  C03B2203/30 ,  C03B2203/42 ,  C03C3/06 ,  C03C3/097 ,  C03C4/0071 ,  C03C13/046 ,  C03C2201/10 ,  C03C2201/28 ,  C03C2201/34 ,  C03C2201/3488 ,  G02B6/024 ,  G02B6/032 ,  G02B6/03622 ,  G02B6/03633 ,  G02B6/03638 ,  H01S3/06712 ,  H01S3/06716 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/1618

    Abstract: The present invention relates to a large-core optical fiber and a large-core optical fiber system, wherein the optical fiber comprises of a core having a core raidius ρ and a core index of refraction n core ; a first cladding disposed about said core, said first cladding having an outer radius ρ 1 and an index of refraction n cl , said core and said first cladding having a difference in index of refraction Δn = n core - n cl , and a numerical aperture (NA) less than about 0.05, said NA determined by n core and n cl ; and a second cladding disposed about said first cladding, said first cladding and said second cladding having a difference in index of refraction Δn 1 , wherein the first cladding radius ρ 1 is greater than about 1.1 ρ and less than about 2 ρ and the refractive index difference between said first cladding and said second cladding, Δn 1 , is greater than about 1.5 Δn and less than about 50 Δn. The optical fiber system for providing optical amplification consists of the large-core optical fiber, wherein said core of said large-core fiber is doped with one or more types of rare earth ions, said large-core optical fiber comprising of a combined waveguide formed by said core and said first cladding layer; an optical pump optically coupled to said large-core optical fiber; and an optical source optically coupled to an input of said large-core optical fiber.

    Abstract translation: 本发明涉及一种大芯光纤和大芯光纤系统，worin芯的光纤包括具有芯raidius A和折射率n芯的芯指数; 第一包层置于所述芯，所述具有outerRadius A 1和折射率n的CL，所述芯和具有折射率的差。所述第一包层的折射率的第一包层“N = N核心 - N的CL，和数值 孔径（NA）大于约12:05以下，说NA测定用n芯和n CL; 和第二包层置于所述第一包，所述第一包层和所述的第二包层的折射率的差的“n 1，worin第一包层的半径，A 1为大于约2a和折射率大于约1.1且小于 说第一包层和第二包层说，的折射率之差的“n 1，大于约1.5”大于约50的“n秒和更少。 对于大芯光纤的提供光学放大besteht光纤系统，worin所述大芯光纤的芯掺杂有一种或多种类型的稀土离子，所述大芯光纤包括组合的波导形成 由所述芯和所述第一包层; 到光学耦合到所述大芯光纤光泵浦; 和光源光学在所述大芯光纤的输入端耦合到。

    OPTICAL GLASS
    34.
    发明申请
    OPTICAL GLASS 审中-公开

    公开(公告)号：US20180016182A1

    公开(公告)日：2018-01-18

    申请号：US15546244

    申请日：2016-04-06

    Applicant: CDGM GLASS CO., LTD

    Inventor： Wei SUN

    IPC: C03C3/068 ,  G02B3/00

    CPC classification number: C03C3/068 ,  C03C2201/3411 ,  C03C2201/3417 ,  C03C2201/3452 ,  C03C2201/3488 ,  G02B1/00 ,  G02B1/118 ,  G02B3/0087 ,  G02B27/0062

    Abstract: An optical glass with high refractive index and low dispersion, having refractive index nd of 1.78-1.95, Abbe number vd of 32-50, and contains no GeO2, so it is not easily devitrified. An optical glass, represented by cation %, including: 1-20% of Si4+; 25-60% of B3+; 10-40% of La3+; 0-15% of Y3+; 0-20% of Nb5+; 0-15% of Ti4+; 0-10% of Ta5+; 0-5% of W6+; 0-15% of Zr4+; 0-10% of Zn2+; 0-10% of Bi3+. An optical glass with excellent transmittance, an optical glass preform and an optical element formed by the above optical glass. The optical element made by the above optical glass and the above glass preform or optical element blank, such as lens, can be used for optical systems.

    Manufacturing method for optical fiber preform and optical fiber
    37.
    发明授权
    Manufacturing method for optical fiber preform and optical fiber 有权
    光纤预制棒和光纤的制造方法

    公开(公告)号：US08693833B2

    公开(公告)日：2014-04-08

    申请号：US13243092

    申请日：2011-09-23

    Applicant: Kentaro Ichii ,  Shoji Tanigawa

    Inventor： Kentaro Ichii ,  Shoji Tanigawa

    IPC: G02B6/02

    CPC classification number: C03B37/01838 ,  C03B37/01853 ,  C03B2201/28 ,  C03B2201/36 ,  C03C13/046 ,  C03C23/0095 ,  C03C2201/28 ,  C03C2201/32 ,  C03C2201/3488 ,  C03C2201/36 ,  C03C2203/54 ,  H01S3/06716 ,  H01S3/06729

    Abstract: Provided is a manufacturing method for an optical fiber preform of which the core is doped with a rare earth element. The method includes: depositing glass particles within a silica tube by the modified chemical vapor deposition method, the glass particles mainly consisting of silicon dioxide; adding the rare earth element and aluminum to the glass particles within the silica tube by the solution doping method; heating the silica tube while flowing a phosphorous-containing gas into the silica tube to sinter the glass particles within the silica tube while adding the phosphorous; and heating and collapsing the silica tube to which the rare earth element, the aluminum, and the phosphorous are added.

    Abstract translation: 本发明提供一种其中掺杂有稀土元素的光纤预制棒的制造方法。 该方法包括：通过改性化学气相沉积法将玻璃颗粒沉积在二氧化硅管内，玻璃颗粒主要由二氧化硅组成; 通过溶液掺杂法将稀土元素和铝添加到二氧化硅管内的玻璃颗粒中; 在将含磷气体流入二氧化硅管的同时加热二氧化硅管，以在加入磷的同时烧结二氧化硅管内的玻璃颗粒; 并且加热和塌陷添加有稀土元素，铝和磷的二氧化硅管。

    MANUFACTURING METHOD FOR OPTICAL FIBER PREFORM AND OPTICAL FIBER
    38.
    发明申请
    MANUFACTURING METHOD FOR OPTICAL FIBER PREFORM AND OPTICAL FIBER 有权
    光纤预制和光纤的制造方法

    公开(公告)号：US20120014653A1

    公开(公告)日：2012-01-19

    申请号：US13243092

    申请日：2011-09-23

    Applicant: Kentaro ICHII ,  Shoji TANIGAWA

    Inventor： Kentaro ICHII ,  Shoji TANIGAWA

    IPC: G02B6/02 ,  G02B6/00

    CPC classification number: C03B37/01838 ,  C03B37/01853 ,  C03B2201/28 ,  C03B2201/36 ,  C03C13/046 ,  C03C23/0095 ,  C03C2201/28 ,  C03C2201/32 ,  C03C2201/3488 ,  C03C2201/36 ,  C03C2203/54 ,  H01S3/06716 ,  H01S3/06729

    Abstract: Provided is a manufacturing method for an optical fiber preform of which the core is doped with a rare earth element. The method includes: depositing glass particles within a silica tube by the modified chemical vapor deposition method, the glass particles mainly consisting of silicon dioxide; adding the rare earth element and aluminum to the glass particles within the silica tube by the solution doping method; heating the silica tube while flowing a phosphorous-containing gas into the silica tube to sinter the glass particles within the silica tube while adding the phosphorous; and heating and collapsing the silica tube to which the rare earth element, the aluminum, and the phosphorous are added.

    Abstract translation: 本发明提供一种其中掺杂有稀土元素的光纤预制棒的制造方法。 该方法包括：通过改性化学气相沉积法将玻璃颗粒沉积在二氧化硅管内，玻璃颗粒主要由二氧化硅组成; 通过溶液掺杂法将稀土元素和铝添加到二氧化硅管内的玻璃颗粒中; 在将含磷气体流入二氧化硅管的同时加热二氧化硅管，以在加入磷的同时烧结二氧化硅管内的玻璃颗粒; 并且加热和塌陷添加有稀土元素，铝和磷的二氧化硅管。

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