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    Synthesis of germanium sulphide and related compounds
    12.
    发明申请
    Synthesis of germanium sulphide and related compounds 审中-公开
    合成硫化锗及相关化合物

    公开(公告)号：US20070074541A1

    公开(公告)日：2007-04-05

    申请号：US10575199

    申请日：2004-10-08

    Applicant: John Badding ,  Daniel Hewak ,  Chung-Che Huang

    Inventor： John Badding ,  Daniel Hewak ,  Chung-Che Huang

    IPC: C03B37/023 ,  C03B37/018

    CPC classification number: C03C3/323 ,  C03B19/106 ,  C03B37/01807 ,  C03B2201/88 ,  C03C3/253 ,  C03C3/321 ,  C03C12/00 ,  C03C13/043 ,  C03C17/02 ,  C23C16/305 ,  G02B6/132

    Abstract: The invention relates to synthesis of germanium sulphide glasses and optical devices formed therefrom. In a chemical vapour deposition process, germanium tetrachloride is reacted with hydrogen sulphide at temperatures in the range 450-700° C. to form germanium sulphide. Lower temperatures within this range of 450-550° C. directly produce a glass, whereas higher temperatures within the range of 600-700° C. produce a crystalline powder which can then be reduced to a glass by subsequent melting and annealing. The reaction is preferably carried out at atmospheric pressure or slightly higher. Thin films and bulk glasses suitable for optical waveguides can be formed directly in one processing step as can powders and microspheres. The materials synthesised are of a high purity with low oxide impurities and only trace levels of transition metal ions.

    Abstract translation: 本发明涉及由其形成的硫化锗玻璃和光学器件的合成。 在化学气相沉积方法中，四氯化锗在450-700℃的温度下与硫化氢反应形成硫化锗。 在450-550℃范围内的较低温度直接生成玻璃，而在600-700℃范围内的较高温度产生结晶性粉末，然后可以通过随后的熔融和退火将其还原成玻璃。 反应优选在大气压或稍高的温度下进行。 适用于光波导的薄膜和散装玻璃可以直接在一个加工步骤中形成，如粉末和微球。 合成的材料具有高纯度，低氧化物杂质和仅痕量的过渡金属离子。

    Low-temperature fabrication of glass optical components
    13.
    发明申请
    Low-temperature fabrication of glass optical components 有权
    玻璃光学元件的低温制造

    公开(公告)号：US20040079114A1

    公开(公告)日：2004-04-29

    申请号：US10283402

    申请日：2002-10-29

    Inventor： Bruce G. Aitken ,  Dilip K. Chatterjee ,  Daniel H. Raguin

    IPC: C03C003/32 ,  C03B023/00

    CPC classification number: G02B5/045 ,  C03B11/082 ,  C03B11/086 ,  C03B19/06 ,  C03B2201/80 ,  C03B2201/82 ,  C03B2201/86 ,  C03B2201/88 ,  C03B2215/16 ,  C03B2215/17 ,  C03B2215/41 ,  C03B2215/412 ,  C03B2215/414 ,  C03B2215/60 ,  C03C3/32 ,  C03C17/22 ,  C03C2217/77 ,  G02B3/0031 ,  G02B3/005 ,  G02B3/0056 ,  G02B3/06 ,  Y02P40/57

    Abstract: In one aspect, a method is provided for molding from glass complex optical components such as lenses, microlens, arrays of microlenses, and gratings or surface-relief diffusers having fine or hyperfine microstructures suitable for optical or electro-optical applications. In another aspect, mold masters or patterns, which define the profile of the optical components, made on metal alloys, particularly titanium or nickel alloys, or refractory compositions, with or without a non-reactive coating are provided. Given that molding optical components from oxide glasses has numerous drawbacks, it has been discovered in accordance with the invention that non-oxide glasses substantially eliminates these drawbacks. The non-oxide glasses, such as chalcogenide, chalcohalide, and halide glasses, may be used in the mold either in bulk, planar, or power forms. In the mold, the glass is heated to about 10-110null C., preferably about 50null C., above its transition temperature (Tg), at which temperature the glass has a viscosity that permits it to flow and conform exactly to the pattern of the mold.

    Abstract translation: 在一个方面，提供了一种用于从诸如透镜，微透镜，微透镜阵列的玻璃复合光学部件以及具有适合于光学或电光学应用的精细或超细微结构的光栅或表面浮雕扩散器成型的方法。 在另一方面，提供了限定在具有或不具有非反应性涂层的金属合金，特别是钛或镍合金或耐火材料组合物上制成的光学部件的轮廓的模具主体或图案。 鉴于来自氧化物玻璃的成型光学部件具有许多缺点，根据本发明已经发现，非氧化物玻璃基本上消除了这些缺点。 非氧化物玻璃，例如硫族化物，卤化铝和卤化物玻璃可以以体积，平面或电力形式用于模具中。 在模具中，将玻璃加热至约10-110℃，优选约50℃，高于其转变温度（Tg），在该温度下，玻璃具有允许其流动并准确地符合 模具图案。

    Hollow core photonic band gap infrared fibers
    17.
    发明申请
    Hollow core photonic band gap infrared fibers 有权
    空心光子带隙红外光纤

    公开(公告)号：US20050025965A1

    公开(公告)日：2005-02-03

    申请号：US10632210

    申请日：2003-08-01

    Applicant: Jasbinder Sanghera ,  Ishwar Aggarwal ,  L. Shaw ,  P. Pureza ,  Fred Kung ,  Brian Cole

    Inventor： Jasbinder Sanghera ,  Ishwar Aggarwal ,  L. Shaw ,  P. Pureza ,  Fred Kung ,  Brian Cole

    IPC: B32B1/00 ,  C03B37/012 ,  C03C11/00 ,  C03C13/04 ,  G02B20060101 ,  G02B6/02

    CPC classification number: G02B6/02328 ,  C03B37/0122 ,  C03B37/01274 ,  C03B2201/86 ,  C03B2201/88 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/16 ,  C03B2203/42 ,  C03C11/00 ,  C03C13/043 ,  G02B6/02347 ,  Y10T428/265 ,  Y10T428/2913

    Abstract: This invention pertains to a hollow core photonic band gap chalcogenide optical glass fiber and to a fabrication method for making the fiber. The fiber, which is 80-1000 microns in outside diameter, is characterized by a solid glass circumferential region and a structured region disposed centrally within the solid region, the structured region includes a hollow core of 1 micron to several hundreds of microns in diameter surrounded by a plurality of parallel hollow capillaries extending parallel to the core, the core being centrally and longitudinally located within the fiber. Ratio of open space to glass in the structured region is 30-99%. The fabrication method includes the steps of providing a mold, placing chalcogenide micro-tubes around the mold, stacking chalcogenide micro-canes around the stacked micro-tubes, fusing the micro-tubes and the micro-canes to form a preform, removing the mold and drawing the preform to obtain the fiber. In an alternative fabrication method, the fiber is made by extruding flowing chalcogenide glass through suitably made plate to form a preform and then drawing the preform to form the fiber.

    Abstract translation: 本发明涉及中空光子带隙硫族化物光学玻璃纤维及其制造方法。 外径为80-1000微米的纤维的特征在于固体玻璃圆周区域和设置在固体区域中心的结构区域，该结构区域包括直径为1微米至几百微米的中空芯体 通过平行于芯部延伸的多个平行的中空毛细管，芯部居中并且纵向位于纤维内。 结构区域的开放空间与玻璃的比例为30-99％。 该制造方法包括以下步骤：提供模具，将硫族化物微管放置在模具周围，在堆叠的微管周围堆放硫族化物微型手杖，将微管和微型手杖融合以形成预成型件，移除模具 并拉制预制件以获得纤维。 在替代的制造方法中，纤维通过将流动的硫族化物玻璃通过适当制成的板挤出以形成预成型件然后拉伸预制件以形成纤维而制成。

    Gallium lanthanum sulfide glasses and optical waveguides and devices using such glasses
    18.
    发明授权
    Gallium lanthanum sulfide glasses and optical waveguides and devices using such glasses 有权
    镓镧硫化物玻璃和使用这种玻璃的光波导和器件

    公开(公告)号：US06803335B2

    公开(公告)日：2004-10-12

    申请号：US10210074

    申请日：2002-08-02

    Applicant: Daniel William Hewak ,  Mohammed Khawar Arshad Mairaj

    Inventor： Daniel William Hewak ,  Mohammed Khawar Arshad Mairaj

    IPC: C03C323

    CPC classification number: C03B37/027 ,  C03B37/023 ,  C03B2201/88 ,  C03C3/23 ,  C03C3/323 ,  C03C13/044 ,  C03C13/048

    Abstract: A new and improved hybrid of Ga:La:S (GLS) glass is provided, namely a glass comprising gallium sulfide, lanthanum oxide, and at least 2 mol % lanthanum fluoride. The Ga:La:S:O:F (GLSOF) glass retains the important properties of the Ga:La:S system, while introducing improved thermal stability and spectroscopic properties. In addition, GLSOF glasses are non-toxic. The glass formation region for GLSOF has been carefully evaluated with compositional variations. It has been identified that an area of glass formation as indicated by circles, is a new and previously undiscovered glass formation region.

    Abstract translation: 提供了一种新的改进的Ga：La：S（GLS）玻璃的混合物，即包含硫化镓，氧化镧和至少2mol％氟化镧的玻璃。 Ga：La：S：O：F（GLSOF）玻璃保留了Ga：La：S系统的重要性质，同时引入了改进的热稳定性和光谱性质。 另外，GLSOF眼镜是无毒的。 GLSOF的玻璃形成区域已经通过组成变化进行了仔细的评估。 已经确定，由圆形表示的玻璃形成区域是新的和先前未发现的玻璃形成区域。

    Holey optical fibres of non-silica based glass
    19.
    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

    Inventor： Neil Gregory Raphael Broderick ,  Daniel William Hewak ,  Tanya Mary Monro ,  David John Richardson ,  Yvonne Deana West

    IPC: G02B006/20

    CPC classification number: G02B6/02347 ,  C03B37/01205 ,  C03B37/0122 ,  C03B2201/60 ,  C03B2201/62 ,  C03B2201/70 ,  C03B2201/78 ,  C03B2201/80 ,  C03B2201/82 ,  C03B2201/83 ,  C03B2201/84 ,  C03B2201/86 ,  C03B2201/88 ,  C03B2203/14 ,  C03B2203/42 ,  C03C13/04 ,  C03C13/041 ,  C03C13/046 ,  C03C13/048 ,  C03C25/106 ,  C03C25/1062 ,  G02B6/02361

    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。

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