利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

23 records (took 0.015 seconds)

    Rare earth doped amplifying optical fiber for compact devices and method of manufacturing thereof
    2.
    发明公开
    Rare earth doped amplifying optical fiber for compact devices and method of manufacturing thereof 审中-公开
    用于紧凑型器件及其制造方法稀土掺杂的增益光纤

    公开(公告)号：EP2495589A1

    公开(公告)日：2012-09-05

    申请号：EP11305231.0

    申请日：2011-03-04

    Applicant: Draka Comteq B.V.

    Inventor： Burov, Ekaterina ,  Pastouret, Alain ,  De Montmorillon, Louis-Anne ,  Bergonzo, Aurélien

    IPC: G02B6/036 ,  H01S3/067

    CPC classification number: C03B37/01838 ,  C03B37/01211 ,  C03B37/01823 ,  C03B37/01861 ,  C03B37/01869 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/23 ,  G02B6/0365 ,  H01S3/06733 ,  H01S3/1603 ,  H01S3/1691 ,  H01S3/1693 ,  H01S3/1695

    Abstract: This rare earth doped amplifying optical fiber comprises, from the center to the periphery: an inner core, an inner cladding, a depressed trench and an outer cladding. The inner core has a radius r 1 between 2.5 µm and 3.1 µm, a refractive index difference Δn 1 between 8.0×10 -3 and 10.5×10 -3 with respect to the outer cladding and has a silica-based main matrix doped with at least one rare earth element. The inner cladding has a radius r 2 between 4.1 µm and 15.8 µm. The depressed trench has a radius r 3 and a negative refractive index difference Δn 3 between -14.2x 10 -3 and -3.7×10 -3 with respect to the outer cladding. r 2 -r 1 is comprised between 1.4 µm and 12.9 µm, r 3 -r 2 is comprised between 4.7 µm and 18.9 µm; and the volume integral of the depressed trench, V 13 , defined as V 13 = 2. ∫ r 2 r 3 Δn r . rdr ≈ r 3 2 - r 2 2 × Δ ⁢ n 3 , is comprised between -2200x 10 -3 µm 2 and -1600x 10 -3 µm 2 . Use in compact devices.

    Abstract translation: 这种掺稀土的放大光纤包括，从中心到边缘：内芯的内部包层，凹陷槽和外上包层。 所述内芯具有一个半径为r微米1 2.5之间和3.1微米，折射率差的“n 1 8.0×10 -3和5.10×10 -3之间相对于所述外部包层并具有掺杂有基于二氧化硅的主矩阵 至少一种稀土元素。 所述内包层具有4.1微米至15.8微米之间的半径r 2。 凹陷槽具有半径r 3和负折射率差的“n 3 -14.2x 10 -3和-3.7×10 -3之间相对于所述外部包层。 R 2 -r 1 1.4微米和12.9微米，R 3 -r 2 4.7微米和18.9微米之间介于包括; 和凹陷槽13节的体积积分，定义为V 13 = 2 “R 2 R 3的” n河 RDR‰R 3 2 - R 2 2ד¢N 3，为10 -3和2微米-1600x 10 -3微米之间-2200x包括在2。 在使用紧凑型设备。

    Amplifying optical fibre and production method
    3.
    发明公开
    Amplifying optical fibre and production method 有权
    Verstärkerglasfaserund Herstellungsverfahren

    公开(公告)号：EP2194620A1

    公开(公告)日：2010-06-09

    申请号：EP09014861.0

    申请日：2009-12-01

    Applicant: Draka Comteq B.V.

    Inventor： Pastouret, Alain ,  Gonnet, Cédric ,  Burov, Ekaterina

    IPC: H01S3/067

    CPC classification number: H01S3/06716 ,  H01S3/1603 ,  H01S3/169 ,  H01S3/1691 ,  H01S3/1695 ,  H01S3/176

    Abstract: An amplifying optical fibre comprising a central core (10) suitable for transmitting and amplifying an optical signal, and an optical cladding (11) surrounding the central core and suitable for confining the optical signal transmitted in the core, the central core being formed by a main matrix and containing nanoparticles (5) doped with a rare earth. The concentration by weight of the rare earth dopants in each nanoparticle is comprised between 1 and 20% by weight (wt.%), and the concentration of the nanoparticles in the main matrix of the central core is comprised between 0.05% and 1% by volume. Such an optical fibre incorporates rare earth ions at a high concentration whilst avoiding the phenomenon of photo-darkening at high power.

    Abstract translation: 一种放大光纤，包括适于透射和放大光信号的中心纤芯（10）和围绕中心纤芯的光学包层（11），其适于限制在芯中传输的光信号，中心芯由 主基质和掺杂稀土的纳米粒子（5）。 每个纳米颗粒中的稀土掺杂剂的重量浓度为1至20重量％（重量％），并且中心芯的主基质中的纳米颗粒的浓度由0.05％和1％之间由 卷。 这种光纤以高浓度掺入稀土离子，同时避免高功率下的光暗现象。

    Rare-earth-doped optical fiber
    4.
    发明公开
    Rare-earth-doped optical fiber 有权
    稀土掺杂的光纤

    公开(公告)号：EP2463970A3

    公开(公告)日：2014-06-18

    申请号：EP11191874.4

    申请日：2011-12-05

    Applicant: Draka Comteq B.V.

    Inventor： Boivin, David ,  Pastouret, Alain ,  Burov, Ekaterina ,  Gonnet, Cédric

    IPC: H01S3/067 ,  H01S3/16 ,  H01S3/17

    CPC classification number: H01S3/06716 ,  H01S3/1608 ,  H01S3/169 ,  H01S3/173 ,  H01S3/175 ,  H01S3/176

    Abstract: An optical fiber (1) comprises a core (90) and an optical cladding (200). The core (90) is constituted by a core matrix (100) containing nanoparticles (110). The nanoparticles (110) are constituted by a nanoparticle matrix (120) surrounded by an outer layer. The nanoparticle matrix (120) includes doping atoms from the group of rare earths (130) at a concentration such that the atom ratio between the number of nanoparticle matrix (120) atoms other than oxygen and the number of atoms of rare earths (130) lies in the range 300 to 1000. The outer layer consists in an outer layer matrix that is substantially free from any atom of rare earths (130), and has thickness lying in the range 1 nm to 2 nm. Such an optical fiber serves to attenuate pair-induced quenching (PIQ) mechanisms and homogeneous up conversion (HUC) mechanisms.

Patent Agency Ranking