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    Selective multi-chemical fiber optic sensor
    2.
    发明授权
    Selective multi-chemical fiber optic sensor 失效
    选择性多化学光纤传感器

    公开(公告)号：US5525800A

    公开(公告)日：1996-06-11

    申请号：US332294

    申请日：1994-10-31

    申请人： Jasbinder S. Sanghera ,  Pablo C. Pureza ,  Ishwar D. Aggarwal ,  Gregory Nau

    发明人： Jasbinder S. Sanghera ,  Pablo C. Pureza ,  Ishwar D. Aggarwal ,  Gregory Nau

    IPC分类号： G01N21/55 ,  G01N21/17

    CPC分类号： G01N21/7703 ,  G01N2021/7709 ,  G01N2021/773 ,  G01N2021/7793

    摘要： A fiber optic sensor for detecting at least one chemical by evanescent wave spectroscopy comprises a generator of a light signal, a mirror for introducing the light signal into a fiber, a clad optical chalcogenide glass fiber, a mirror for directing the light signal from the fiber into a detector, and a detector for detecting chemicals by the fiber. The fiber comprises a core and a clad having lower refractive index than the core enveloping and being in continuous contact with the core, at least one region on the fiber completely or partially devoid of the clad, and a polymer disposed in the region having affinity for the chemical(s). There being a different polymer in each region if there is more than one region.

    摘要翻译： 用于通过ev逝波谱检测至少一种化学物质的光纤传感器包括光信号的发生器，用于将光信号引入光纤的反射镜，包层光学硫族化物玻璃光纤，用于引导来自光纤的光信号的反射镜 检测器，以及用于通过纤维检测化学品的检测器。 纤维包括芯和包层，其折射率低于芯包络并且与芯连续接触，纤维上的至少一个区域完全或部分不含包层，并且聚合物设置在具有亲和力的区域中 化学物质。 如果存在多于一个区域，则在每个区域中存在不同的聚合物。

    Plasma treatment of glass surfaces to remove carbon
    3.
    发明授权
    Plasma treatment of glass surfaces to remove carbon 失效
    玻璃表面的等离子体处理以除去碳

    公开(公告)号：US5364434A

    公开(公告)日：1994-11-15

    申请号：US953390

    申请日：1992-09-30

    申请人： Jasbinder S. Sanghera ,  Pablo C. Pureza ,  Ishwar D. Aggarwal

    发明人： Jasbinder S. Sanghera ,  Pablo C. Pureza ,  Ishwar D. Aggarwal

    IPC分类号： C03C23/00

    CPC分类号： C03C23/006 ,  C03C23/0075 ,  Y10S65/16

    摘要： Glass free of surface carbon deposits, such as carbon film and/or carbon occlusions, and a process for removing such carbon deposits from glass. The process is characterized by the application of a plasma to glass to remove the carbon deposits. The plasma used for this purpose contains active specie which reacts with the carbon deposits to form gaseous carbon products.

    摘要翻译： 没有表面碳沉积物的玻璃，例如碳膜和/或碳封闭物，以及从玻璃中除去这些碳沉积物的方法。 该方法的特征在于将等离子体施加到玻璃上以除去碳沉积物。 用于此目的的等离子体包含与碳沉积物反应形成气态碳产物的活性物质。

    Method of forming waveguides with ion exchange of halogen ions
    4.
    发明授权
    Method of forming waveguides with ion exchange of halogen ions 失效
    用卤离子离子交换形成波导的方法

    公开(公告)号：US5294240A

    公开(公告)日：1994-03-15

    申请号：US937765

    申请日：1992-09-01

    申请人： Jasbinder S. Sanghera ,  Pablo C. Pureza ,  Ishwar D. Aggarwal

    发明人： Jasbinder S. Sanghera ,  Pablo C. Pureza ,  Ishwar D. Aggarwal

    IPC分类号： C03C21/00

    CPC分类号： C03C21/007 ,  Y10S65/15 ,  Y10S65/16

    摘要： This invention pertains to optical waveguides which includes waveguides ofll shapes and sizes, preforms, and optical fibers made from the preforms, and to a method for making waveguides devoid of a physical interface. The method includes preparation of a waveguide from a halide-containing glass, heating the waveguide to a temperature below crystallization temperature of the glass so that it is still solid, providing a gaseous reactive medium containing halide ions of higher electronegativity than halide ions in the waveguide, exposing the waveguide to said reactive medium for a sufficient duration for the halide ions of higher electronegativity in the reactive medium to replace at least a portion of the halide ions of lower electronegativity in the waveguide, and cooling the waveguide whereby a lower refractive index is formed on the side of the waveguide exposed to the reactive medium than the refractive index internally of the waveguide so that light can travel through the portion of the waveguide having the higher refractive index.

    摘要翻译： 本发明涉及包括所有形状和尺寸的波导的光波导，预成型件和由预型件制成的光纤，以及用于制造没有物理接口的波导的方法。 该方法包括从含卤化物的玻璃制备波导，将波导加热至低于玻璃结晶温度的温度，使其仍然是固体，提供含有比波长中的卤离子更高的电负性的卤离子的气态反应介质 使波导到所述反应介质持续足够的持续时间，以使反应介质中具有较高电负性的卤离子替代至少一部分波导中较低电负性的卤离子，并冷却波导，由此较低折射率为 形成在暴露于反应性介质的波导的侧面，而不是波导内部的折射率，使得光可以穿过具有较高折射率的波导的部分。

    Fabrication of optical preforms by axial chemical vapor deposition
    6.
    发明授权
    Fabrication of optical preforms by axial chemical vapor deposition 失效
    通过轴向化学气相沉积制造光学预型件

    公开(公告)号：US4440558A

    公开(公告)日：1984-04-03

    申请号：US387983

    申请日：1982-06-14

    申请人： Dilip K. Nath ,  Pablo C. Pureza ,  Shin M. Oh

    发明人： Dilip K. Nath ,  Pablo C. Pureza ,  Shin M. Oh

    IPC分类号： C03B37/018 ,  C03B8/04 ,  C03B37/014 ,  G02B6/00 ,  C03B19/06 ,  C03B37/025

    CPC分类号： C03B37/01426 ,  C03B2201/08 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/40 ,  C03B2201/42 ,  Y10S65/16

    摘要： Hydroxyl free deposition with high efficiency and at a high deposition rate may be achieved, even with use of relatively inexpensive raw materials, by utilizing a ring-shaped plasma activated axial chemical vapor deposition obtaining 100% chemical conversion and fractional volatilization of impurities. The plasma is induced in an annular stream of a plasma-forming gaseous medium, and the reactant or reactants used in the axial chemical vapor deposition are introduced into the center of the ring-shaped plasma to be converted by the heat of the plasma flame into soot which is deposited on a bait. An annular stream of a cooling medium flows outwardly past the plasma flame and is circumferentially centered by an extension of the outer tubular element of a plasma torch in which the plasma is generated. An RF generator which induces the plasma is operated at a frequency exceeding 20 MHz to give the plasma flame the desired ring-sloped configuration.

    摘要翻译： 通过利用环状等离子体激活的轴向化学气相沉积获得100％的化学转化和杂质的分级挥发，即使使用相对便宜的原料，也可以实现高效率和高沉积速率的无羟基沉积。 在等离子体形成的气体介质的环形流中诱导等离子体，并且将用于轴向化学气相沉积的反应物引入环形等离子体的中心，以通过等离子体火焰的热量转化为 沉积在诱饵上的烟灰。 冷却介质的环形流向外流过等离子体火焰，并且由其中产生等离子体的等离子体焰炬的外部管状元件的延伸部周向居中。 诱导等离子体的RF发生器以超过20MHz的频率运行，以使等离子体火焰成为期望的环形倾斜结构。

    Apparatus and methods of coating filaments with polymers
    7.
    发明授权
    Apparatus and methods of coating filaments with polymers 失效
    用聚合物涂覆长丝的装置和方法

    公开(公告)号：US4201151A

    公开(公告)日：1980-05-06

    申请号：US896842

    申请日：1978-04-17

    申请人： Mokhtar S. Maklad ,  Pablo C. Pureza

    发明人： Mokhtar S. Maklad ,  Pablo C. Pureza

    IPC分类号： C03C25/10 ,  C03C25/14 ,  D06B3/04 ,  B05B5/00

    CPC分类号： C03C25/143 ,  C03C25/106 ,  D06B3/045

    摘要： An optical fiber or similar article is coated by directing the fiber through a spherical mixing vessel. Two silicone RTV components are directed by means of an annular feed mechanism into the mixing vessel at predetermined flow rates. The motion of the fiber directed through the vessel produces a churning or agitation of the silicone components to uniformly and homogeneously coat the fiber with the mixed components and provide a protective elastomeric coating about the fiber.

    摘要翻译： 通过将纤维引导通过球形混合容器来涂覆光纤或类似物品。 两个硅胶RTV部件通过环形进给机构以预定的流速被引导到混合容器中。 引导通过容器的纤维的运动产生硅氧烷组分的搅拌或搅拌以均匀且均匀地涂覆纤维与混合组分，并提供围绕纤维的保护性弹性体涂层。

    Hollow core photonic band gap infrared fibers
    8.
    发明授权
    Hollow core photonic band gap infrared fibers 有权
    空心光子带隙红外光纤

    公开(公告)号：US06993230B2

    公开(公告)日：2006-01-31

    申请号：US10632210

    申请日：2003-08-01

    申请人： Jasbinder Sanghera ,  Ishwar Aggarwal ,  Leslie B. Shaw ,  Pablo C. Pureza ,  Fred Kung ,  Brian Cole

    发明人： Jasbinder Sanghera ,  Ishwar Aggarwal ,  Leslie B. Shaw ,  Pablo C. Pureza ,  Fred Kung ,  Brian Cole

    IPC分类号： G02B6/02

    CPC分类号： 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

    摘要： 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.

    摘要翻译： 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，将微管和微型手杖熔合以形成预成型件，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。

    Apparatus and method for drawing glass fibers
    9.
    发明授权
    Apparatus and method for drawing glass fibers 失效
    玻璃纤维拉制装置及方法

    公开(公告)号：US06295844B1

    公开(公告)日：2001-10-02

    申请号：US07415923

    申请日：1989-09-11

    申请人： Danh C. Tran ,  Pablo C. Pureza

    发明人： Danh C. Tran ,  Pablo C. Pureza

    IPC分类号： C03B37025

    CPC分类号： C03B37/029 ,  C03B2201/82 ,  C03B2205/64 ,  C03B2205/80 ,  C03B2205/90

    摘要： An apparatus and method for drawing low loss fluoride glass fibers from a preform. A stream of reactive gas is passed around the preform and fiber so as to prevent moisture and oxygen contamination of the fiber while the fiber is being drawn. The apparatus includes an insulating vessel which surrounds a heating chamber in which the fiber is drawn, and a very narrow heating zone within the chamber for preventing crystallization of the drawn fiber.

    摘要翻译： 一种用于从预制件中拉制低损耗氟化玻璃纤维的设备和方法。 反应气体流围绕预成型件和纤维通过，以防止在纤维被拉伸时纤维的水分和氧气污染。 该设备包括一个绝缘容器，该绝缘容器围绕着一个加热室，其中纤维被拉出，并且在室内的非常窄的加热区域用于防止拉伸的纤维的结晶。

    Optical fiber drawing using plasma torch
    10.
    发明授权
    Optical fiber drawing using plasma torch 失效
    使用等离子体焰炬的光纤拉丝

    公开(公告)号：US4440556A

    公开(公告)日：1984-04-03

    申请号：US391273

    申请日：1982-06-23

    申请人： Shin M. Oh ,  Dilip K. Nath ,  Pablo C. Pureza

    发明人： Shin M. Oh ,  Dilip K. Nath ,  Pablo C. Pureza

    IPC分类号： C03B37/025 ,  C03B37/027 ,  C03B37/029 ,  G02B6/00

    CPC分类号： C03B37/02718 ,  C03B37/029 ,  C03B2205/68

    摘要： In order to provide a high power heat source having a very clean and invariable heat flux, a ring plasma is induced in a heating zone of a plasma torch including a plurality of coaxial tubular elements and the optical fiber is drawn through a channel passing axially through the center of the plasma torch and of the ring-shaped plasma. In this manner the preform from which the fiber is drawn can be placed in close proximity to the induced plasma without exposure to non-symmetrical temperature variations. Cooling gas passes through the heating zone either in an annular stream surrounding the plasma or in an annular stream passing through the center of the plasma around the preform and the fiber being drawn, or both. The heating zone is protected from environmental disturbances by an extension of the outer tubular element of the plasma torch which surrounds the heating zone. The plasma is induced by an RF source in an undisturbed stream of a plasma-forming gaseous medium, such as argon or a mixture of argon with oxygen, which flows through the heating zone.

    摘要翻译： 为了提供具有非常干净且不变的热通量的高功率热源，在包括多个同轴管状元件的等离子体焰炬的加热区域中感应出环等离子体，并且光纤通过轴向通过的通道 等离子体焰炬的中心和环形等离子体。 以这种方式，纤维被拉伸的预成型件可以放置在接近感应等离子体的同时不暴露于非对称的温度变化。 冷却气体以围绕等离子体的环形流或穿过预制件周围的等离子体中心的环形流或被拉伸的纤维或两者都通过加热区。 通过围绕加热区域的等离子体焰炬的外部管状元件的延伸来保护加热区免受环境干扰。 等离子体由等离子体形成的气体介质（例如氩气或氩气与氧气的混合物）的未干扰的流中的RF源引发，其流过加热区。