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    HEAT TRANSFER FLUIDS USEABLE FOR COOLING ITEMS, SUCH AS OPTICAL FIBERS
    41.
    发明申请
    HEAT TRANSFER FLUIDS USEABLE FOR COOLING ITEMS, SUCH AS OPTICAL FIBERS 审中-公开
    热转移流体可用于冷却物品，如光纤纤维

    公开(公告)号：WO2002074709A1

    公开(公告)日：2002-09-26

    申请号：PCT/EP2002/003030

    申请日：2002-03-14

    Applicant: L'AIR LIQUIDE - SOCIETE ANONYME A DIRECTOIRE ET CONSEIL DE SURVEILLANCE POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE

    Inventor： GIACOBBE, Frederick, W.

    IPC: C03B37/027

    CPC classification number: C09K5/00 ,  C03B37/01446 ,  C03B37/027 ,  C03B37/02718 ,  C21D1/613 ,  C21D1/76 ,  F25D3/10 ,  F25D3/11

    Abstract: Heat transfer fluid mixtures and methods fo making and using same are presented. The inventive heat transfer fluid mixtures consist essentially of a light gas and at least one heavy fluid, which may be adjusted between a first composition having a high head transfer coefficient and high cost, and a second compositon having a lower cost. The heavy gas can be selected from teh group consisting of nitrogen, argon, carbon dioxide, and mixtures thereof, and the light gas can be selected from the group consisting of hydrogen, helium and any mixture thereof, the light gas having a concentration ranging from about 20 mole % to about 99 mole %. Method of colling or heating an item comprising the step of directly and/or indirectly contacting the item with the mixture of the invention, preferably the item to be cooled is an cylindrical optical fiber, which traverses through a substantially confined space, preferably the confined space is an heat exchanger.

    Abstract translation: 介绍了传热流体混合物及其制备和使用方法。 本发明的传热流体混合物基本上由轻气体和至少一种重质流体组成，其可以在具有高磁头转印系数和高成本的第一组合物之间进行调节，而第二组合物具有较低的成本。 重质气体可以选自由氮，氩，二氧化碳及其混合物组成的组，轻质气体可选自氢气，氦气及其任何混合物，轻气体的浓度范围为 约20摩尔％至约99摩尔％。 冷冻或加热物品的方法包括直接和/或间接接触物品与本发明的混合物，优选待冷却物品的步骤是圆柱形光纤，其穿过基本上限定的空间，优选地限制空间 是一个热交换器。

    OPTICAL FIBER FOR TRANSMITTING ULTRAVIOLET RAY, OPTICAL FIBER PROBE, AND METHOD OF MANUFACTURING THE OPTICAL FIBER AND OPTICAL FIBER PROBE
    43.
    发明申请
    OPTICAL FIBER FOR TRANSMITTING ULTRAVIOLET RAY, OPTICAL FIBER PROBE, AND METHOD OF MANUFACTURING THE OPTICAL FIBER AND OPTICAL FIBER PROBE 审中-公开
    用于发射超光束的光纤，光纤探头和制造光纤和光纤探头的方法

    公开(公告)号：WO02056070A1

    公开(公告)日：2002-07-18

    申请号：PCT/JP2002/000123

    申请日：2002-01-11

    IPC: C03B37/012 ,  C03B37/027 ,  C03C4/00 ,  C03C13/04 ,  C03C23/00 ,  C03C25/10 ,  C03C25/60 ,  G02B6/02 ,  G02B6/10 ,  G02B6/24 ,  G02B6/26 ,  G01N13/14 ,  G02B6/44

    CPC classification number: G02B6/02333 ,  C03B37/01205 ,  C03B37/027 ,  C03B37/02781 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/21 ,  C03B2203/14 ,  C03B2203/42 ,  C03C4/0085 ,  C03C13/045 ,  C03C13/046 ,  C03C23/0095 ,  C03C25/105 ,  C03C25/1065 ,  C03C25/607 ,  C03C2201/10 ,  C03C2201/12 ,  C03C2201/14 ,  C03C2201/21 ,  G02B6/02033 ,  G02B6/02347 ,  G02B6/02395 ,  G02B6/03694 ,  G02B6/102 ,  G02B6/241 ,  G02B6/262

    Abstract: An optical fiber for transmitting ultraviolet ray, comprising a core (5) formed of a silica glass containing a specified amount of fluorine and a clad (6a) formed of a silica glass containing a specified amount of fluorine or boron, a clad (6b) using an ultraviolet ray transmitting resin, or a clad (6c) having hollow holes (H), a protective layer installed on the outer periphery of the clad, and a protective layer covering layer further installed on the protective layer, wherein hydrogen treatment is applied to the core, clad, and protective layer so that the core, clad, and protective cover are not deteriorated, particularly, by the radiation of ultraviolet ray with high transmittance, whereby first the transmittance of ultraviolet ray of the optical fiber can be increased and the deterioration of the optical fiber by the radiation of ultraviolet ray thereon can be eliminated and second vacuum ultraviolet ray and deep ultraviolet ray can be propagated with a high transmittance, the deterioration by the radiation of ultraviolet ray thereon can be reduced, and a prescribed sharp part can be formed at the tip part of the optical fiber by etching; an optical fiber probe (1), comprising a sharp part (3) formed by sharpening the tip part of the optical fiber (2) with etchant and a metallic film (4) for light shielding formed on the outer peripheral surface of the sharp part (3).

    Abstract translation: 一种用于透射紫外线的光纤，包括由含有规定量的氟的二氧化硅玻璃形成的芯（5）和由含有规定量的氟或硼的二氧化硅玻璃形成的包层（6a），包层（6b） 使用紫外线透射树脂或具有中空孔（H）的包层（6c），安装在包层的外周上的保护层和进一步安装在保护层上的保护层覆盖层，其中施加氢处理 芯层，保护层和保护层，特别是通过具有高透射率的紫外线的辐射而不会劣化，首先可以提高光纤的紫外线的透射率， 可以消除通过其上的紫外线辐射导致的光纤的劣化，并且可以以高透射率传播第二真空紫外线和深紫外线，de 可以减少其上的紫外线辐射的恶化，并且可以通过蚀刻在光纤的尖端处形成规定的尖锐部分; 光纤探针（1），包括通过用蚀刻剂磨光光纤（2）的尖端部分而形成的尖锐部分（3）和形成在尖锐部分的外周表面上的用于遮光的金属膜（4） （3）。

    METHOD AND INSTALLATION FOR PURIFYING AND RECYCLING HELIUM AND USE IN OPTICAL FIBRE MANUFACTURE
    45.
    发明申请
    METHOD AND INSTALLATION FOR PURIFYING AND RECYCLING HELIUM AND USE IN OPTICAL FIBRE MANUFACTURE 审中-公开
    净化和回收氦的方法和安装以及在光纤制造中的应用

    公开(公告)号：WO02033334A2

    公开(公告)日：2002-04-25

    申请号：PCT/FR2001/003126

    申请日：2001-10-10

    IPC: B01D53/22 ,  C01B21/04 ,  C01B23/00 ,  C03B37/018 ,  C03B37/027 ,  F25J3/06 ,  F25J3/08

    CPC classification number: C01B21/0444 ,  C01B2210/0031 ,  F25J3/069 ,  F25J3/08 ,  F25J2205/40 ,  F25J2205/80 ,  F25J2215/30

    Abstract: The invention concerns a method and an installation for purifying impure helium (10). Said method consists in subjecting the helium to at least two successive steps: (a) cryogenic refrigeration (1) of impure helium so as to eliminate by condensation at least part of the main impurities it contains and recuperating helium with intermediate purity containing residual impurities; and (b) permeation (2) of at least part of the helium with intermediate purity derived form step (a) so as to eliminate at least part of said residual impurities and recuperating helium with final purity higher than said intermediate purity. Said method and said installation are useful for purifying impure helium (10) recuperated at the output of a chamber for cooling (26) optical fibre (27), prior to the reintroduction of the resulting purified helium into said chamber so as to recycle the helium.

    Abstract translation: 本发明涉及用于纯化不纯氦的方法和装置（10）。 所述方法包括使氦至少连续两个步骤：（a）不纯氦的低温制冷（1），以便通过冷凝至少部分其所含的主要杂质并使含有残留杂质的中等纯度的氦回收; 和（b）至少部分氦的渗透（2），其具有来自步骤（a）的中间纯度，以便消除至少部分所述残余杂质并使最终纯度高于所述中间纯度的氦回收。 所述方法和所述安装可用于净化在用于冷却（26）光纤（27）的室的输出处的不纯的氦（10），然后将所产生的净化氦再次引入所述室，以便再循环氦 。

    OPTICAL FIBRE WITH REDUCED POLARIZATION MODE DISPERSION AND METHOD FOR OBTAINING AN OPTICAL FIBRE WITH REDUCED POLARIZATION MODE DISPERSION
    46.
    发明申请
    OPTICAL FIBRE WITH REDUCED POLARIZATION MODE DISPERSION AND METHOD FOR OBTAINING AN OPTICAL FIBRE WITH REDUCED POLARIZATION MODE DISPERSION 审中-公开
    具有减少的极化模式分散的光纤和用于获得具有降低的极化模式分散的光纤的方法

    公开(公告)号：WO02003115A1

    公开(公告)日：2002-01-10

    申请号：PCT/EP2001/007241

    申请日：2001-06-27

    IPC: C03B37/027 ,  C03B37/03 ,  G02B6/10 ,  G02B6/16

    CPC classification number: G02B6/02285 ,  C03B37/027 ,  C03B37/02745 ,  C03B37/032 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06 ,  G02B6/105

    Abstract: A method for determining at least one parameter of a periodic spin function alpha (z) with period p, to be applied to an optical fibre along its length z during a drawing process, comprises selecting said at least one parameter so that (I) where epsilon 1 is about 0.05 and gamma 1 is the first of the three components y1(z), y2(z), y3(z) of a periodic function y(z) of period p such that (II) where LB is an expected beat length of said optical fibre and alpha (z) is the derivative of the spin function alpha (z) with respect to the length z. The method is effective for substantially reducing the PMD of optical fibres drawn while applying a spin function as determined above.

    Abstract translation: 一种用于在绘制过程中确定沿着其长度z施加到光纤的具有周期p的周期性自旋函数α（z）的至少一个参数的方法，包括选择所述至少一个参数，使得（I）其中 ε1约为0.05，γ1是周期p的周期函数y（z）的三个分量y1（z），y2（z），y3（z）中的第一个，使得（II）其中LB是预期的 所述光纤的拍子长度和α（z）是自旋函数α（z）相对于长度z的导数。 该方法对于在施加如上所述的自旋函数的同时拉伸的光纤的PMD基本上是有效的。

    PROCESS FOR RECOVERING HELIUM USING AN EDUCTOR
    47.
    发明申请
    PROCESS FOR RECOVERING HELIUM USING AN EDUCTOR 审中-公开
    使用教师恢复嘶嘶声的过程

    公开(公告)号：WO01094259A1

    公开(公告)日：2001-12-13

    申请号：PCT/US2001/017759

    申请日：2001-06-01

    IPC: B01D53/00 ,  C01B23/00 ,  C03B37/027

    CPC classification number: C01B23/0036 ,  B01D53/00 ,  B01D2257/11 ,  C01B2210/0031 ,  C03B37/02718 ,  C03B2205/57

    Abstract: This invention is directed to a process for recovering helium. The process comprises a) passing a first gas containing helium (10) to an eductor (26) to produce a second gas (28); b) passing the second gas (28) through a heat exchanger (40) to produce a third gas (42); c) recovering the third gas (42) into the eductor (26) to combine with the first gas (10).

    Abstract translation: 本发明涉及一种回收氦的方法。 该方法包括a）将含有氦气（10）的第一气体通入喷射器（26）以产生第二气体（28）; b）使第二气体（28）通过热交换器（40）以产生第三气体（42）; c）将第三气体（42）回收到喷射器（26）中以与第一气体（10）组合。

    OPTICAL FIBER WITH IRREGULARITIES AT CLADDING BOUNDARY AND METHOD OF ITS FABRICATION
    50.
    发明申请
    OPTICAL FIBER WITH IRREGULARITIES AT CLADDING BOUNDARY AND METHOD OF ITS FABRICATION 审中-公开
    粘着边界不规则光纤及其制作方法

    公开(公告)号：WO0138244A8

    公开(公告)日：2001-06-28

    申请号：PCT/US0031902

    申请日：2000-11-20

    Applicant: SCIENTIFIC ATLANTA

    Inventor： ANTHON DOUGLAS W ,  EMSLIE CHRIS ,  MATON PETER ,  SPEED ASHLEY

    IPC: C03B37/012 ,  C03B37/018 ,  C03B37/027 ,  G02B6/036 ,  G02B6/10 ,  H01S3/067 ,  G02B6/22

    CPC classification number: G02B6/03694 ,  C03B37/01211 ,  C03B37/01838 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2201/40 ,  C03B2203/12 ,  C03B2203/22 ,  G02B6/03622 ,  G02B6/03638 ,  G02B6/105 ,  H01S3/06708 ,  H01S3/06729

    Abstract: An optical fiber (10) made with a central core (12), a first cladding layer (16), and a second cladding layer (18) having a series of perturbations or irregularities formed into the otherwise generally circular outer boundary of the first cladding layer (16). The irregularities in the first cladding layer (16) interrupt the propagation of skew rays and encourage coupling into the core (12). An intermediate cladding (14) may be provided between core and first cladding layer (16). A method of fabricatiNG the optical fiber is also disclosed, comprising, drilling a plurality of holes within the first cladding forming material and at the boundary thereof with the material forming the second cladding layer, drilling a central hole and inserting a preform core rod into said central hole. Drawing integrates the rod and drilled rod and the plurality of holes are collaped, so forming an irregular, quasi-circular boundary between first and second cladding forming layers in the drawn fiber.

    Abstract translation: 由中心纤芯（12），第一包层（16）和第二包层（18）制成的光纤（10）具有一系列扰动或不规则性，这些扰动或不规则性形成于第一包层的另外一般为圆形的外边界 层（16）。 第一包层（16）中的不规则性中断了倾斜射线的传播并且促使耦合到芯（12）中。 中间包层（14）可以设置在芯与第一包层（16）之间。 还公开了一种制造光纤的方法，该方法包括：在第一包层形成材料内和其边界处用形成第二包层的材料钻出多个孔，钻中心孔并将预制棒芯棒插入所述 中心孔。 拉伸将杆和钻杆集成在一起，并且多个孔成形，从而在拉制纤维中的第一和第二包层形成层之间形成不规则的准圆形边界。

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