FIBER BUNDLES AND METHODS OF MAKING FIBER BUNDLES
    11.
    发明申请
    FIBER BUNDLES AND METHODS OF MAKING FIBER BUNDLES 审中-公开
    纤维束及制造纤维束的方法

    公开(公告)号:WO2006026542A3

    公开(公告)日:2006-08-03

    申请号:PCT/US2005030638

    申请日:2005-08-25

    CPC classification number: G02B6/06 C03C25/1061 G02B6/04

    Abstract: The present invention relates to fiber bundles and methods for making fiber bundles. According to one embodiment of the invention, at the endface of the fused fiber bundle, the ratio of the cross-sectional area of the endface to the cross sectional area of the plurality of optical fibers is at least about 2.5. According to another embodiment of the invention, a fused fiber bundle includes a plurality of optical fibers, and a glass tube surrounding the terminal segments of the optical fibers, wherein the refractive index of the glass tube is less than the refractive index of the claddings of the optical fibers. Other embodiments of the present invention provide methods for making fused bundles.

    Abstract translation: 本发明涉及纤维束和制造纤维束的方法。 根据本发明的一个实施例,在熔融纤维束的端面处,端面的横截面面积与多根光纤的横截面面积之比为至少约2.5。 根据本发明的另一实施例,熔融纤维束包括多根光纤和围绕光纤的末端段的玻璃管,其中玻璃管的折射率小于包层的折射率 光纤。 本发明的其他实施方式提供了制造熔融束的方法。

    HIGH SBS THRESHOLD OPTICAL FIBER
    19.
    发明申请
    HIGH SBS THRESHOLD OPTICAL FIBER 审中-公开
    高SBS阈值光纤

    公开(公告)号:WO2006138117A3

    公开(公告)日:2007-04-12

    申请号:PCT/US2006021987

    申请日:2006-06-06

    Abstract: An optical waveguide fiber having a high threshold for stimulated Brillouin scattering. According to some embodiments of the invention, the optical fiber comprises: (a) a rare earth doped core having a refractive index profile and a centerline, the core including at least two adjacent core regions including different amounts of updopants, such that the longitudinal acoustic field velocities within the two core regions differ by at least 0.2%; and (b) a cladding layer surrounding and directly adjacent the core. The said fiber has MFD of greater than 12 µm and delta % difference between the peak core delta and the cladding of less than 0.3%.

    Abstract translation: 具有用于受激布里渊散射的高阈值的光波导光纤。 根据本发明的一些实施例,光纤包括:(a)具有折射率分布和中心线的稀土掺杂的芯,所述芯包括至少两个相邻的芯区,包括不同量的上升物,使得纵向声 两个核心区域内的速度差异至少为0.2%; 和(b)围绕并直接邻近芯的包覆层。 所述光纤具有大于12μm的MFD和峰值核心三角形和包层之间的Δ%差小于0.3%。

    CLADDING-PUMPED QUASI 3-LEVEL FIBER LASER/AMPLIFIER
    20.
    发明申请
    CLADDING-PUMPED QUASI 3-LEVEL FIBER LASER/AMPLIFIER 审中-公开
    CLADDING-PUMPED QUASI 3级光纤激光/放大器

    公开(公告)号:WO2005048418A8

    公开(公告)日:2007-03-15

    申请号:PCT/US2004037447

    申请日:2004-11-08

    Abstract: An optically active fiber (30) is disclosed for making a fiber laser (18) or an amplifier (16) for optically pumping by a broad area laser diode for operation in the 1.5 micron band. This double-clad structured active fiber (30) has a core (34), doped with an optically excitable erbium ion having a quasi-three-level transition. The core (34) has a core refractive index and a core cross-sectional area. An inner cladding (32) surrounds the core (34). The inner cladding (32) has an inner cladding refractive index less than the core refractive index, an inner cladding cross-sectional area between 2 and 25 times greater than that of the core cross-sectional area, and an aspect ratio greater than 1.5:1. An outer cladding (36) surrounds the inner cladding (32) and has an outer cladding refractive index less than the inner cladding refractive index.

    Abstract translation: 公开了一种用于制造光纤激光器(18)或放大器(16)的光学有源光纤(30),用于通过广域激光二极管光学泵浦以在1.5微米波段内操作。 这种双包层结构的有源光纤(30)具有掺杂有具有准三电平转换的光学可激发的铒离子的芯(34)。 芯(34)具有芯折射率和芯横截面积。 内包层(32)围绕芯部(34)。 内包层(32)具有小于芯折射率的内包层折射率,内包层横截面积比核心横截面积大2至25倍,纵横比大于1.5: 1。 外包层(36)围绕内包层(32)并且具有小于内包层折射率的外包层折射率。

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