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    Large mode field active optical fiber and manufacture method thereof
    2.
    发明授权
    Large mode field active optical fiber and manufacture method thereof 有权
    大模场有源光纤及其制造方法

    公开(公告)号：US09014523B2

    公开(公告)日：2015-04-21

    申请号：US13497314

    申请日：2010-11-24

    Applicant: Wei Chen ,  Shiyu Li ,  Daoyu Lei ,  Dongxiang Wang ,  Wenyong Luo ,  Wenjun Huang ,  Fuming Hu ,  Peng Hu

    Inventor： Wei Chen ,  Shiyu Li ,  Daoyu Lei ,  Dongxiang Wang ,  Wenyong Luo ,  Wenjun Huang ,  Fuming Hu ,  Peng Hu

    IPC: G02B6/028 ,  G02B6/036 ,  C03B37/012 ,  C03B37/018 ,  C03B37/027

    CPC classification number: G02B6/0365 ,  C03B37/01228 ,  C03B37/0183 ,  C03B37/02754 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2203/12 ,  G02B6/0281 ,  Y02P40/57

    Abstract: A large mode field active optical fiber and manufacture method thereof is provided. The large mode field active optical fiber is formed by drawing a fiber core (1), a quartz glass internal cladding (2), a quartz glass outer cladding (3), and a coating (4). The quartz glass internal cladding (2), the quartz glass outer cladding (3), and the coating (4) are sequentially coated on the outer surface of the fiber core (1). The fiber core (1) is formed by depositing, melting, and shrinking the tetrachlorosilane doped with rare earth ions in a quartz glass tube. The refractive index of the fiber core (1) is a graded refractive index, and the section parameter a thereof is 1≦α≦3. The appearance of the quartz glass inner cladding (2) is regular multi-prism shaped. The large mode field active optical fiber provides an approximate single mode output, increases the capacity of bearing the laser power for the active optical fiber, increases the quality of the light beam of the output laser, avoids the problem that there is a hollow ring in the output laser, increases the reliability of the high power fiber laser, increases the utilization efficiency of the raw materials, and reduces the manufacture cost.

    Abstract translation: 提供了一种大模场有源光纤及其制造方法。 大模场有源光纤是通过拉伸纤维芯（1），石英玻璃内包层（2），石英玻璃外包层（3）和涂层（4）来形成的。 石英玻璃内包层（2），石英玻璃外包层（3）和涂层（4）依次涂覆在纤维芯（1）的外表面上。 纤维芯（1）通过在石英玻璃管中沉积，熔化和收缩掺杂有稀土离子的四氯硅烷而形成。 纤维芯（1）的折射率为渐变折射率，其截面参数a为1＆nlE;α＆nlE; 3。 石英玻璃内包层（2）的外观是规则的多棱镜形状。 大模场有源光纤提供近似的单模输出，增加了对有源光纤的激光功率的承载能力，提高了输出激光的光束质量，避免了中空环的问题 输出激光器，提高了高功率光纤激光器的可靠性，提高了原材料的利用效率，降低了制造成本。

    LARGE MODE FIELD ACTIVE OPTICAL FIBER AND MANUFACTURE METHOD THEREOF
    3.
    发明申请
    LARGE MODE FIELD ACTIVE OPTICAL FIBER AND MANUFACTURE METHOD THEREOF 有权
    大型模式场活性光纤及其制造方法

    公开(公告)号：US20120263428A1

    公开(公告)日：2012-10-18

    申请号：US13497314

    申请日：2010-11-24

    Applicant: Wei Chen ,  Shiyu Li ,  Daoyu Lei ,  Dongxiang Wang ,  Wenyong Luo ,  Wenjun Huang ,  Fuming Hu ,  Peng Hu

    Inventor： Wei Chen ,  Shiyu Li ,  Daoyu Lei ,  Dongxiang Wang ,  Wenyong Luo ,  Wenjun Huang ,  Fuming Hu ,  Peng Hu

    IPC: G02B6/00 ,  C03B37/018 ,  B05D3/06

    CPC classification number: G02B6/0365 ,  C03B37/01228 ,  C03B37/0183 ,  C03B37/02754 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2203/12 ,  G02B6/0281 ,  Y02P40/57

    Abstract: A large mode field active optical fiber and manufacture method thereof is provided. The large mode field active optical fiber is formed by drawing a fiber core (1), a quartz glass internal cladding (2), a quartz glass outer cladding (3), and a coating (4). The quartz glass internal cladding (2), the quartz glass outer cladding (3), and the coating (4) are sequentially coated on the outer surface of the fiber core (1). The fiber core (1) is formed by depositing, melting, and shrinking the tetrachlorosilane doped with rare earth ions in a quartz glass tube. The refractive index of the fiber core (1) is a graded refractive index, and the section parameter a thereof is 1≦α≦3. The appearance of the quartz glass inner cladding (2) is regular multi-prism shaped. The large mode field active optical fiber provides an approximate single mode output, increases the capacity of bearing the laser power for the active optical fiber, increases the quality of the light beam of the output laser, avoids the problem that there is a hollow ring in the output laser, increases the reliability of the high power fiber laser, increases the utilization efficiency of the raw materials, and reduces the manufacture cost.

    Abstract translation: 提供了一种大模场有源光纤及其制造方法。 大模场有源光纤是通过拉伸纤维芯（1），石英玻璃内包层（2），石英玻璃外包层（3）和涂层（4）来形成的。 石英玻璃内包层（2），石英玻璃外包层（3）和涂层（4）依次涂覆在纤维芯（1）的外表面上。 纤维芯（1）通过在石英玻璃管中沉积，熔化和收缩掺杂有稀土离子的四氯硅烷而形成。 纤维芯（1）的折射率为渐变折射率，其截面参数a为1＆nlE;α＆nlE; 3。 石英玻璃内包层（2）的外观是规则的多棱镜形状。 大模场有源光纤提供近似的单模输出，增加了对有源光纤的激光功率的承载能力，提高了输出激光的光束质量，避免了中空环的问题 输出激光器，提高了高功率光纤激光器的可靠性，提高了原材料的利用效率，降低了制造成本。

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