Optical fiber with micro-structured cladding
    3.
    发明授权
    Optical fiber with micro-structured cladding 有权
    具有微结构包层的光纤

    公开(公告)号:US07072552B2

    公开(公告)日:2006-07-04

    申请号:US11004344

    申请日:2004-12-02

    IPC分类号: G02B6/02

    摘要: An optical fiber having a length can include a core and at least one cladding disposed about the core, where the one cladding can comprise at least first volumetric regions having a first refractive index n1 and second volumetric regions having a second refractive index n2, different from n1, and the first and second volumetric regions in any cross-section taken through the fiber can be randomly intermingled with one another, where the random intermingling of the first and second volumetric regions changes with changes in the location of the cross-section along the length of the fiber.

    摘要翻译: 具有长度的光纤可以包括芯和围绕芯设置的至少一个包层,其中一个包层可以包括具有第一折射率n 1的第一体积区域和具有第一体积区域的第二体积区域, 与n 1不同的第二折射率n 2,以及通过光纤的任何横截面中的第一和第二体积区域可以彼此随机地混合, 其中第一和第二体积区域的随机混合随着沿着纤维长度的横截面位置的变化而改变。

    Micro-structured optical fibre
    5.
    发明申请
    Micro-structured optical fibre 失效
    微结构光纤

    公开(公告)号:US20040071423A1

    公开(公告)日:2004-04-15

    申请号:US10416502

    申请日:2003-10-22

    IPC分类号: G02B006/22 G02B006/20

    摘要: A microstructured fiber having a cladding comprising a number of elongated features that are arranged to provide concentric circular or polygonial regions surrounding the fibre core. The cladding comprises a plurality of concentric cladding regions, at least some of which comprising cladding features. Cladding regions comprising cladding features of a relatively low index type are arranged alternatingly with cladding regions of a relatively high index type. The cladding features are arranged in a non-periodic manner when viewed in a cross section of the fiber. The cladding enables waveguidance by photonic bandgap effects in the fiber core. An optical fiber of this type may be used for light guidance in hollow core fibers for high power transmission. The special cladding structure may also provide strong positive or negative dispersion of light guided through the fibre-making the fibre useful for telecommunication applications.

    摘要翻译: 一种具有包层的微结构纤维,其包括多个细长特征,其布置成提供围绕纤维芯的同心圆形或多边形区域。 包层包括多个同心包层区域,其中至少一些包括包层特征。 包含相对低折射率类型的包层特征的包覆区域与相对较高折射率类型的包层区域交替布置。 当在纤维的横截面中观察时,包层特征以非周期性方式布置。 该包层通过光纤芯中的光子带隙效应使波导成为可能。 这种类型的光纤可以用于用于高功率传输的中空纤维中的光引导。 特殊的包层结构还可以提供通过光纤引导的光的强的正或负色散,使光纤可用于电信应用。

    High power optical fibers
    8.
    发明授权
    High power optical fibers 有权
    大功率光纤

    公开(公告)号:US09146345B1

    公开(公告)日:2015-09-29

    申请号:US13744968

    申请日:2013-01-18

    IPC分类号: G02B6/02 C03B37/027

    摘要: Photonic bandgap fibers are described that can be solid across the core and clad and have a large core diameter with little loss in the fundamental mode. In addition, the mode loss of the higher order modes can be much greater than that of the fundamental mode, providing high power fibers with high effective mode area. Excellent single mode output can be obtained from the fibers in length scale close to what is required for fiber laser and amplifiers.

    摘要翻译: 光子带隙光纤被描述为可以穿过核心并且包层并且具有大的芯径,而在基本模式中几乎没有损失。 此外,高阶模式的模式损耗可以远大于基本模式的模式损耗,提供具有高有效模式面积的高功率光纤。 光纤激光器和放大器所需的光纤长度可以获得优异的单模输出。

    Method for manufacturing a preform and preform for drawing a microstructured optical fiber
    9.
    发明授权
    Method for manufacturing a preform and preform for drawing a microstructured optical fiber 有权
    用于制造用于拉伸微结构光纤的预成型件和预成型件的方法

    公开(公告)号:US09069120B2

    公开(公告)日:2015-06-30

    申请号:US13544550

    申请日:2012-07-09

    IPC分类号: G02B6/032 C03B37/025 G02B6/02

    摘要: In a method for manufacturing a preform for drawing a microstructured optical fiber, a core element and multiple sub-elements are arranged extending along the perform. The sub-elements and the core element form a bundle, which is twisted by a specified angle about the longitudinal axis of the bundle, wherein the pattern formed by the cross section of the sub-elements and the cross section of the core element is preserved along a length of the perform. The sub-elements and the core elements are subsequently at least partially fused together by heating the material of which the core element and the sub elements are made of above the transformation point of the material, so as to at least partially eliminate the cavities between the sub-elements, between the sub-elements and the core element, and between the sub-elements and the casing.

    摘要翻译: 在制造用于拉伸微结构化光纤的预成型件的方法中,沿着该方向布置有芯元件和多个子元件。 子元件和芯元件形成束,绕束的纵向轴线以特定角度扭转,其中由子元件的横截面和芯元件的横截面形成的图案被保留 沿着一段长度的表演。 亚元件和芯元件随后通过加热材料的至少部分熔合在一起,其中芯元件和子元件由材料的相变点上方制成,以便至少部分地消除材料之间的空腔 子元件,子元件和芯元件之间以及子元件和外壳之间。

    PHOTONIC BAND GAP FIBERS USING A JACKET WITH A DEPRESSED SOFTENING TEMPERATURE
    10.
    发明申请
    PHOTONIC BAND GAP FIBERS USING A JACKET WITH A DEPRESSED SOFTENING TEMPERATURE 有权
    使用带有柔软温度的夹克的光子带隙纤维

    公开(公告)号:US20120141079A1

    公开(公告)日:2012-06-07

    申请号:US12960638

    申请日:2010-12-06

    IPC分类号: G02B6/032 C03B37/075

    摘要: The present invention is generally directed to a photonic bad gap fiber and/or fiber preform with a central structured region comprising a first non-silica based glass and a jacket comprising a second non-silica based glass surrounding the central structured region, where the Littleton softening temperature of the second glass is at least one but no more than ten degrees Celsius lower than the Littleton softening temperature of the first glass, or where the base ten logarithm of the glass viscosity in poise of the second glass is at least 0.01 but no more than 2 lower than the base ten logarithm of the glass viscosity in poise of the first glass at a fiber draw temperature. Also disclosed is a method of making a photonic bad gap fiber and/or fiber preform.

    摘要翻译: 本发明一般涉及具有中心结构化区域的光子不良间隙纤维和/或纤维预制件,该中心结构化区域包括第一非二氧化硅基玻璃和包含围绕中心结构化区域的第二非二氧化硅基玻璃的护套,其中Littleton 第二玻璃的软化温度比第一玻璃的利特尔顿软化温度低至少一个但不超过十摄氏度,或者第二玻璃的玻璃粘度的基准十对数至少为0.01,但是没有 在纤维拉伸温度下,第一玻璃的玻璃粘度的基数为10以下的基准值低于2。 还公开了制造光子不良间隙纤维和/或纤维预制件的方法。