Holey optical fibres of non-silica based glass
    46.
    发明申请
    Holey optical fibres of non-silica based glass 失效
    非二氧化硅基玻璃的多孔光纤

    公开(公告)号:US20030161599A1

    公开(公告)日:2003-08-28

    申请号:US10344685

    申请日:2003-02-14

    Abstract: To overcome problems of fabricating conventional core-clad optical fibre from non-silica based (compound) glass, it is proposed to fabricate non-silica based (compound) glass optical fibre as holey fibre i.e. one contining Longitudinal holes in the cladding. This removes the conventional problems associated with mismatch of the physical properties of the core and clad compound glasses, since a holey fibre can be made of a single glass composition. With a holey fibre, it is not necessary to have different glasses for the core and cladding, since the necessary refractive index modulation between core and cladding is provided by the microstructure of the clad, i.e. its holes, rather than by a difference in materials properties between the clad and core glasses. Specifically, the conventional thermal mismatch problems between core and clad are circumvented. A variety of fibre types can be fabricated from non-silica based (compounds) glasses, for example: single-mode fibre; photonic band gap fibre; highly non-linear fibre; fibre with photosensitivity written gratings and other refractive index profile structures; and rare-earth doped fibres (e.g. Er, Nd, Pr) to provide gain media for fibre amplifiers and lasers.

    Abstract translation: 为了克服从非二氧化硅(复合)玻璃制造常规的包芯光纤的问题,提出了制造非二氧化硅基(复合)玻璃光纤作为多孔纤维,即在包层中连续的纵向孔。 这消除了与芯和包覆复合玻璃的物理性质失配相关的常规问题,因为多孔纤维可以由单一玻璃组合物制成。 使用多孔光纤,由于芯和包层之间必需的折射率调制由包层的微结构即其孔提供,而不是通过材料性质的差异来提供用于芯和包层的不同的玻璃。 在包层和核心眼镜之间。 具体来说,芯和包层之间常规的热失配问题被规避。 各种纤维类型可以由非二氧化硅(化合物)玻璃制成,例如:单模纤维; 光子带隙光纤; 高度非线性的纤维; 具有光敏写入光栅的纤维和其他折射率分布结构; 和稀土掺杂光纤(例如Er,Nd,Pr),为光纤放大器和激光器提供增益介质。

    Combustion synthesis of glass (Al2O3-CaO-X-Y) ceramic (TiB2) composites
    47.
    发明申请
    Combustion synthesis of glass (Al2O3-CaO-X-Y) ceramic (TiB2) composites 失效
    玻璃(Al2O3-CaO-X-Y)陶瓷(TiB2)复合材料的燃烧合成

    公开(公告)号:US20030061832A1

    公开(公告)日:2003-04-03

    申请号:US10145177

    申请日:2002-05-13

    Abstract: The present invention is directed to the preparation of in-situ formation of a series of glass-ceramic composites by the Self-propagating High temperature Synthesis (SHS) technique with advantages of processing simplicity as well as the potential of cost savings. The materials produced by the technique contain crystalline TiB2 phase and have either a pure glassy matrix or a glass matrix with partial devitrification based on the Al2O3nullCaO system. The materials can potentially be used for infrared light transmission and for other high temperature applications. These materials can also be produced with relatively high porosity.

    Abstract translation: 本发明涉及通过自蔓延高温合成(SHS)技术制备一系列玻璃 - 陶瓷复合材料的原位形成,其优点是加工简单以及节约成本的潜力。 通过该技术生产的材料含有晶体TiB 2相,并且具有基于Al2O3-CaO系统的部分失透的纯玻璃质基体或玻璃基体。 这些材料可以用于红外光透射和其他高温应用。 这些材料也可以以相对高的孔隙率制造。

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