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    Optical fiber with micro-structured cladding
    31.
    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

    Applicant: Upendra H. Manyam ,  Kanishka Tankala

    Inventor： Upendra H. Manyam ,  Kanishka Tankala

    IPC: G02B6/02

    CPC classification number: C03B37/0279 ,  C03B37/02754 ,  C03B37/02763 ,  C03B37/02781 ,  C03B2201/31 ,  C03B2201/60 ,  C03B2201/70 ,  C03B2201/80 ,  C03B2201/86 ,  C03B2203/14 ,  C03B2203/18 ,  C03B2203/42 ,  G02B6/02357 ,  G02B6/032 ,  G02B6/0365

    Abstract: 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.

    Abstract translation: 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。

    Method of manufacturing preform for nonoxide glass fiber
    32.
    发明授权
    Method of manufacturing preform for nonoxide glass fiber 失效
    非氧化玻璃纤维制造方法

    公开(公告)号：US5185021A

    公开(公告)日：1993-02-09

    申请号：US587946

    申请日：1990-09-24

    Applicant: Kiyotaka Miura ,  Toshiharu Yamashita

    Inventor： Kiyotaka Miura ,  Toshiharu Yamashita

    IPC: G02B6/00 ,  C03B17/02 ,  C03B37/012

    CPC classification number: C03B17/025 ,  C03B37/01274 ,  C03B2201/80 ,  C03B2201/82 ,  C03B2205/04 ,  Y10S65/16

    Abstract: In a method of manufacturing a preform for a nonoxide glass fiber, cladding and core glass materials are placed in a cylinder of an extrusion apparatus such that ground end faces of the respective cladding and core glass materials are in contact with each other and such that the cladding glass material is located adjacent a molding section of the extrusion apparatus. The cladding and core glass materials are heated within inert-gas atmosphere, to their respective temperatures equal to or below their respective sag points and equal to or above their respective crystallization start temperatures. An extrusion punch of the extrusion apparatus is pushed within the atmosphere, to extrude the cladding and core glass materials through a molding nozzle in the molding section while the cladding and core glass materials are in fusible contact with each other, thereby forming the preform of a core and cladding structure. The preform is gradually cooled within a liner connected to the molding section within the atmosphere. Alternatively, an over-cladding glass material may be placed in the cylinder such that the over-cladding material is located adjacent the molding section, and the cladding glass material is located between the over-cladding and core glass materials.

    LOW-TEMPERATURE FABRICATION OF GLASS OPTICAL COMPONENTS
    33.
    发明申请
    LOW-TEMPERATURE FABRICATION OF GLASS OPTICAL COMPONENTS 审中-公开
    玻璃光学部件的低温制造

    公开(公告)号：WO2004039736A1

    公开(公告)日：2004-05-13

    申请号：PCT/US2003/033261

    申请日：2003-10-20

    Applicant: CORNING INCORPORATED

    Inventor： AITKEN, Bruce, G. ,  RAGUIN, Daniel, H. ,  CHATTERJEE, Dilip, K.

    IPC: C03B11/08

    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. Thereby, molds are used, 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 10-110°C, preferably about 50°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。 因此，提供了限定在金属合金，特别是钛或镍合金或具有或不具有非反应性涂层的耐火材料组合物上制成的光学部件的轮廓的模具。 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，将玻璃加热至高于其转变温度（Tg）的约10-110℃，优选约50℃，在该温度下，玻璃具有允许其流动并且准确地符合 模具。

    HOLEY OPTICAL FIBRES OF NON-SILICA BASED GLASS
    36.
    发明申请
    HOLEY OPTICAL FIBRES OF NON-SILICA BASED GLASS 审中-公开
    非硅基玻璃的孔光学纤维

    公开(公告)号：WO02014946A1

    公开(公告)日：2002-02-21

    申请号：PCT/GB2001/003610

    申请日：2001-08-13

    IPC: G02B6/02 ,  C03B37/012 ,  C03C13/04 ,  C03C25/10 ,  G02B6/00 ,  G02B6/032 ,  H01S3/06 ,  G03B6/16 ,  G02B6/20

    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。

    Method of manufacturing preform for nonoxide glass fiber
    39.
    发明公开
    Method of manufacturing preform for nonoxide glass fiber 失效
    Verfahren zum Herstellen einer Vorformfüreine Glasfaser aus Nicht-Oxid-Glas。

    公开(公告)号：EP0420239A1

    公开(公告)日：1991-04-03

    申请号：EP90118567.8

    申请日：1990-09-27

    Applicant: HOYA CORPORATION

    Inventor： Miura, Kiyotoaka ,  Yamashita, Toshiharu

    IPC: C03B37/012 ,  C03B17/02

    CPC classification number: C03B17/025 ,  C03B37/01274 ,  C03B2201/80 ,  C03B2201/82 ,  C03B2205/04 ,  C03C3/325 ,  C03C13/042 ,  Y10S65/16

    Abstract: In a method of manufacturing a preform for a nonoxide glass fiber, cladding and core glass materials are placed in a cylinder of an extrusion apparatus such that ground end faces of the respective cladding and core glass materials are in contact with each other and such that the cladding glass material is located adjacent a molding section of the extrusion apparatus. The cladding and core glass materials are heated within inert-gas atmosphere, to their respective temperatures equal to or below their respective sag points and equal to or above their respective crystallization start temperatures. An extrusion punch of the extrusion apparatus is pushed within the atmosphere, to extrude the cladding and core glass materials through a molding nozzle in the molding section while the cladding and core glass materials are in fusible contact with each other, thereby forming the preform of a core and cladding structure. The preform is gradually cooled within a liner connected to the molding section within the atmosphere. Alternatively, an over-cladding glass material may be placed in the cylinder such that the over-cladding material is located adjacent the molding section, and the cladding glass material is located between the over-cladding and core glass materials.

    Abstract translation: 在制造非氧化物玻璃纤维的预成型体的方法中，将包层和芯玻璃材料放置在挤出装置的圆筒中，使得各个包层和芯玻璃材料的接地端面彼此接触， 覆层玻璃材料位于挤出设备的模制部分附近。 将包层和芯玻璃材料在惰性气体气氛中加热至各自的温度等于或低于其相应的下垂点，并等于或高于它们各自的结晶起始温度。 挤出装置的挤压冲头在大气中被推入，通过模制部分中的成型喷嘴挤出包层和芯玻璃材料，同时包层和芯玻璃材料彼此熔接接触，从而形成预成型件 芯和包层结构。 预制件在与大气中的模制部分连接的衬里内逐渐冷却。 或者，可以在圆筒中放置上包层玻璃材料，使得上包层材料位于模制部分附近，并且包层玻璃材料位于外包层和芯玻璃材料之间。

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