公开(公告)号：US20090220790A1

公开(公告)日：2009-09-03

申请号：US12362430

申请日：2009-01-29

Applicant: Woohong Kim ,  Jasbinder S. Sanghera ,  Guillermo R. Villalobos ,  Shyam S. Bayya ,  Ishwar D. Aggarwal

Inventor： Woohong Kim ,  Jasbinder S. Sanghera ,  Guillermo R. Villalobos ,  Shyam S. Bayya ,  Ishwar D. Aggarwal

IPC: B32B1/00 ,  C01F7/02 ,  C01F5/00

CPC classification number: C01F7/162 ,  B82Y30/00 ,  C01P2002/32 ,  C01P2004/03 ,  C01P2004/64 ,  C01P2006/12 ,  C04B35/443 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/5454 ,  Y10T428/2982

Abstract: Disclosed is a method of producing a spinel powder comprising preparing a double-hydroxide precursor precipitate then treating the precipitate with a washing agent, wherein said washing agent replaces water in said precipitate, then drying the precipitate to produce a hydroxide powder. The hydroxide powder is calcinated to produce an spinel powder that is essentially free of agglomeration.

Abstract translation: 公开了一种制备尖晶石粉末的方法，其包括制备双氢氧化物前体沉淀物，然后用洗涤剂处理沉淀物，其中所述洗涤剂代替所述沉淀物中的水，然后干燥沉淀物以产生氢氧化物粉末。 将氢氧化物粉末煅烧以产生基本上不附聚的尖晶石粉末。

公开(公告)号：US20080287278A1

公开(公告)日：2008-11-20

申请号：US12183095

申请日：2008-07-31

Applicant: Vinh Q. Nguyen ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

Inventor： Vinh Q. Nguyen ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

IPC: C03C3/32

CPC classification number: C03C13/043 ,  C03C3/321 ,  G02B6/102 ,  Y10S65/15

Abstract: This invention pertains to a chalcogenide glass of low optical loss that can be on the order of 30 dB/km or lower, and to a process for preparing the chalcogenide glass. The process includes the steps of optionally preparing arsenic monochalcogenide precursor or the precursor can be provided beforehand; dynamically distilling the precursor in an open system under vacuum from a hot section to a cold section to purify same; homogenizing the precursor in a closed system so that it is of a uniform color; disposing the distilled or purified precursor and at least one chalcogenide element at a hot section of an open distillation system; dynamically distilling under vacuum in an open system so that the precursor and the at least one chalcogenide element are deposited at a cold section of the open system in a more purified state; homogenizing the precursor and the at least chalcogenide element in a closed system while converting the precursor and the at least one chalcogenide element from crystalline phase to glassy phase.

Abstract translation: 本发明涉及低光损耗的硫属化物玻璃，其数量级可以在30dB / km以下，以及制备硫族化物玻璃的方法。 该方法包括任选地制备砷单体前体的步骤，或者可以预先提供前体; 在开放系统中在真空下从热部分到冷部分动态蒸馏前体以净化其; 在封闭系统中使前体均匀化，使其具有均匀的颜色; 将蒸馏或纯化的前体和至少一种硫族化物元素置于开放蒸馏系统的热段; 在开放系统中在真空下动态蒸馏，使得前体和至少一种硫族化物元素以更纯化的状态沉积在开放系统的冷部分; 在将前体和至少一种硫属元素元素从结晶相转化为玻璃相的同时使封闭体系中的前体和至少硫属元素元素均化。

公开(公告)号：US07283712B2

公开(公告)日：2007-10-16

申请号：US11122203

申请日：2005-05-03

Applicant: L. Brandon Shaw ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal ,  Peter A. Thielen

Inventor： L. Brandon Shaw ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal ,  Peter A. Thielen

IPC: G02B6/32

CPC classification number: G02B6/02328 ,  C03B2201/86 ,  C03B2203/16 ,  C03B2203/42 ,  G02B6/02347 ,  G02B6/032 ,  H01S3/06741 ,  H01S3/302

Abstract: This invention pertains to a glass fiber, a Raman device and a method. The fiber is a hollow core photonic bandgap chalcogenide glass fiber that includes a hollow core for passing light therethrough, a Raman active gas disposed in said core, a microstructured region disposed around said core, and a solid region disposed around said microstructured region for providing structural integrity to said microstructured region. The device includes a coupler for introducing at least one light signal into a hollow core of a chalcogenide photonic bandgap fiber; a hollow core chalcogenide photonic bandgap glass fiber; a microstructured fiber region disposed around said core; a solid fiber region disposed around said microstructured region for providing structural integrity to said microstructured region; and a Raman active gas disposed in the hollow core. The method includes the steps of introducing a light beam into a hollow core chalcogenide photonic bandgap glass fiber filled with a Raman active gas disposed in the core, conveying the beam through the core while it interacts with the gas to form a Stokes beam of a typically higher wavelength, and removing the Stokes beam from the core of the fiber.

Abstract translation: 本发明涉及玻璃纤维，拉曼装置和方法。 纤维是中空核光子带隙硫族化物玻璃纤维，其包括用于使光通过的中空芯，布置在所述芯中的拉曼活性气体，围绕所述芯设置的微结构化区域，以及设置在所述微结构区域周围的固体区域，用于提供结构 对所述微结构区域的完整性。 该装置包括耦合器，用于将至少一个光信号引入到硫族化物光子带隙光纤的中空芯中; 空心核硫属元素光子带隙玻璃纤维; 设置在所述芯周围的微结构化纤维区域; 设置在所述微结构区域周围的固体纤维区域，用于向所述微结构化区域提供结构完整性; 和设置在中空芯中的拉曼活性气体。 该方法包括以下步骤：将光束引入到填充有设置在芯中的拉曼活性气体的中空核心硫族化物光子带隙玻璃纤维中，在与气体相互作用的同时将光束传送通过核心，以形成典型的斯托克斯光束 更高的波长，并从纤芯的核心去除斯托克斯光束。

公开(公告)号：US07211325B2

公开(公告)日：2007-05-01

申请号：US11094544

申请日：2005-03-24

Applicant: Guollermo R. Villalobos ,  Jasbinder S. Sanghera ,  Shyam Bayya ,  Ishwar D. Aggarwal

Inventor： Guollermo R. Villalobos ,  Jasbinder S. Sanghera ,  Shyam Bayya ,  Ishwar D. Aggarwal

IPC: B32B5/16

CPC classification number: C04B35/443 ,  B82Y30/00 ,  C04B35/62655 ,  C04B35/62828 ,  C04B35/62886 ,  C04B35/62897 ,  C04B35/645 ,  C04B2235/3203 ,  C04B2235/3217 ,  C04B2235/445 ,  C04B2235/5436 ,  C04B2235/5454 ,  C04B2235/6562 ,  C04B2235/6581 ,  C04B2235/72 ,  C04B2235/721 ,  C04B2235/77 ,  C04B2235/9653 ,  Y10T428/2991 ,  Y10T428/2993

Abstract: A particle having a magnesium aluminate core and a fluoride salt coating on the core. The particle has been heated in an oxidizing atmosphere to a temperature in the range of about 400° C. to about 750° C. A method of making a particle by mixing a magnesium aluminate core with a solution of a fluoride salt in a solvent to form a slurry and spraying the slurry into a drying column. The slurry enters the column as an aerosol under thermal conditions that avoid boiling the solvent. The thermal conditions in the column evaporate the solvent as the aerosol moves through the column to form a coating of the fluoride salt on the core while substantially avoiding spalling.

Abstract translation: 在芯上具有铝酸镁芯和氟化物盐涂层的颗粒。 将颗粒在氧化气氛中加热到约400℃至约750℃的温度。一种通过将铝酸镁芯与氟化物盐在溶剂中的溶液混合制备颗粒的方法， 形成浆料并将浆料喷雾到干燥塔中。 在避免沸腾溶剂的热条件下，浆料作为气溶胶进入塔中。 当气溶胶移动通过柱子时，塔中的热条件蒸发溶剂，以形成核心上的氟化物盐的涂层，同时基本上避免剥落。

公开(公告)号：USH2045H2

公开(公告)日：2002-09-03

申请号：US08848623

申请日：1997-04-29

Applicant: Lynda E. Busse ,  Ishwar D. Aggarwal ,  John A. Moon

Inventor： Lynda E. Busse ,  Ishwar D. Aggarwal ,  John A. Moon

IPC: G02B626

Abstract: A method and apparatus for reducing points of zero intensity, i.e. speckle pattern, emerging from a multimode fiber. The apparatus comprises a beam deflector for rotating an input beam in a conical shape around a launch lens for projecting the beam into the fiber. The rotation of the beam further incorporates the use of two tilting mirrors being 90° out of phase to ensure a conical rotation. The conical rotation of the beam deflector ensures that the lens aberrations, which are rotationally symmetric, do not play a factor in beam alignment into the fiber aperture.

公开(公告)号：US6015765A

公开(公告)日：2000-01-18

申请号：US997800

申请日：1997-12-24

Applicant: Barry B. Harbison ,  Jasbinder S. Sanghera ,  L. Brandon Shaw ,  Ishwar D. Aggarwal

Inventor： Barry B. Harbison ,  Jasbinder S. Sanghera ,  L. Brandon Shaw ,  Ishwar D. Aggarwal

IPC: C03C3/32 ,  C03C4/10 ,  C03C13/04

CPC classification number: C03C3/321 ,  C03C3/323

Abstract: A telluride glass with glass transition temperature above 150.degree. C., fference between the crystallization temperature and the glass transition temperature of above 200.degree. C., and extended transmission in the infrared region of radiation of up to 20 microns having, on mol basis, 20-60% tellurium, 10-50% arsenic, 4-35% germanium, 0.5-15% gallium, up to 15% iodine, and up to 30% selenium. All or part of the gallium can be replaced with indium and the glass can contain up to 5%, based on the weight of the glass components, of a rare earth ion to render the glass fluorescent. Optical fibers drawn from these glasses have shown mid infrared fluorescence and may have as a bright source of IR light.

Abstract translation: 玻璃化转变温度高于150℃的晶体玻璃，结晶温度与玻璃化转变温度之间的差异在200℃以上，并且在辐射的红外区域中延伸的透射率高达20微米， 20-60％碲，10-50％砷，4-35％锗，0.5-15％镓，至多15％的碘和至多30％的硒。 全部或部分镓可以用铟代替，并且玻璃可以含有最多达5％的玻璃成分重量的稀土离子以使玻璃荧光。 从这些玻璃制成的光纤已经显示出中红外荧光，并且可以具有作为IR光的明亮光源。

公开(公告)号：US5879426A

公开(公告)日：1999-03-09

申请号：US695444

申请日：1996-08-12

Applicant: Jasbinder S. Sanghera ,  Pablo Pureza ,  Ishwar D. Aggarwal ,  Reza Mossadegh

Inventor： Jasbinder S. Sanghera ,  Pablo Pureza ,  Ishwar D. Aggarwal ,  Reza Mossadegh

IPC: C03B37/023

CPC classification number: C03B37/023 ,  C03B2201/86

Abstract: A core/clad glass optical fiber is made by melting a core glass rod and a adding glass rod in separate crucibles which are not intersecting with respect to each other and the respective core and cladding glass melts passed out of contact with each other to a glass melt contacting zone proximate a fiber drawing orifice in which the cladding glass surrounds the core glass and a core/clad glass fiber is drawn. This process enables the clad glass fiber to be drawn directly from core and cladding glass rods without the need for a preform or forming a melt from glass chards or chunks, thereby reducing the cost of producing the fiber and also producing a glass clad optical fiber of high purity and excellent concentricity. Chalcogenide glass fibers having a concentricity of 100% have been made.

Abstract translation: 核心/复合玻璃光纤通过将核心玻璃棒和包层玻璃棒熔化在不相互相交的单独的坩埚中，并且相应的芯和包层玻璃熔体彼此不相接触而熔化成玻璃 靠近纤维拉伸孔的熔融接触区，其中包层玻璃围绕芯玻璃并且芯/包层玻璃纤维被拉伸。 该方法能够使包层玻璃纤维从芯和包层玻璃棒直接拉制，而不需要预成型件或从玻璃切块或块形成熔体，从而降低生产纤维的成本，并且还生产玻璃包覆光纤 纯度高，同心度极佳。 已经制造了同心度为100％的硫族化物玻璃纤维。

公开(公告)号：US5778125A

公开(公告)日：1998-07-07

申请号：US739985

申请日：1996-10-30

Applicant: Lynda E. Busse ,  Frederic H. Kung ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

Inventor： Lynda E. Busse ,  Frederic H. Kung ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

IPC: G02B6/36 ,  G02B6/24 ,  G02B6/38

CPC classification number: G02B6/3861 ,  G02B6/3807 ,  G02B6/3818 ,  G02B6/3867 ,  G02B6/241 ,  G02B6/3863

Abstract: An optical fiber termination connector includes an elongated structure with chamber extending therethrough open at both ends, a fiber disposed in the chamber and spaced therefrom, a solid first material disposed in the chamber around the fiber, and an air gap in the chamber around the end of the fiber. The process includes the steps of locating a fiber in a chamber disposed vertically, with the end of the fiber extending beyond the lower portion of chamber; dipping a lower portion of the chamber into a first material in liquid form so that the first material enters the lower portion of the chamber to a level below an exit port located in the lower portion of the chamber; solidifying the first material disposed in and around the chamber and the fiber; above the solid first material; polishing the lower end of the fiber until it is flush with the chamber at the lower thereof; and removing the first material to form an air gap between the fiber and the lower portion of the chamber. The air gap is large enough to allow independent thermal expansion of the fiber.

Abstract translation: 光纤终端连接器包括细长结构，其具有在两端延伸穿过的腔室，设置在腔室中并与之间隔开的纤维，设置在纤维周围的腔室中的固体第一材料以及围绕着纤维的室中的气隙 纤维端。 该方法包括以下步骤：将纤维定位在垂直设置的腔室中，纤维的端部延伸超出腔室的下部; 将所述腔室的下部浸入液体形式的第一材料中，使得所述第一材料进入所述腔室的下部至位于所述腔室下部的出口的下方; 固化设置在室中和周围的第一材料和纤维; 固体第一材料以上; 抛光纤维的下端直到与其下部的腔体齐平; 并且移除第一材料以在纤维和腔室的下部之间形成气隙。 气隙足够大以允许纤维的独立热膨胀。

公开(公告)号：US5739536A

公开(公告)日：1998-04-14

申请号：US572389

申请日：1995-12-14

Applicant: Frank Bucholtz ,  Gregory Nau ,  Ishwar D. Aggarwal ,  Jasbinder S. Sanghera ,  Kenneth J. Ewing

Inventor： Frank Bucholtz ,  Gregory Nau ,  Ishwar D. Aggarwal ,  Jasbinder S. Sanghera ,  Kenneth J. Ewing

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/42 ,  G01N33/24 ,  G01V8/02 ,  G01V9/00 ,  G01J5/02

CPC classification number: G01J3/42 ,  G01J3/02 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/0291 ,  G01J3/10 ,  G01N33/24 ,  G01V8/02 ,  G01V9/007

Abstract: A system for the in-situ detection of chemicals, including water, in soil comprises: a penetrometer for penetrating the soil, the penetrometer including interior and exterior surfaces, and a window for allowing infrared radiation to be transmitted between the interior and exterier surfaces of the penetrometer; a driver for driving the penetrometer into the soil to a plurality of different depths; a source for providing infrared radiation which passes through the window to irradiate the soil adjacent to the window; an infrared transmitting chalcogenide optical fiber; an optical system disposed within the penetrometer adjacent to the window for transmitting infrared radiation from the source through the window into the soil and for collecting infrared radiation reflected from the soil back through the window into a first end of the chalcogenide fiber; and a spectrometer coupled to a second end of the infrared transmitting chalcogenide optical fiber for receiving and analyzing the reflected infrared radiation passing through the chalcogenide optical fiber to obtain information on chemicals present at various depths of the soil through which the penetrometer passes.

Abstract translation: 用于在土壤中原位检测化学物质（包括水）的系统包括：用于穿透土壤的透度计，包括内部和外部表面的透度计，以及允许红外辐射在内部和外部表面之间传递的窗口 透度计 用于将穿透器驱动到土壤中到多个不同深度的驱动器; 用于提供红外辐射的源，其通过窗口照射邻近窗户的土壤; 红外透射硫族化物光纤; 光学系统设置在邻近窗口的透光计中，用于将来自源的红外辐射通过窗口传送到土壤中，并用于将通过窗口反射的从土壤反射的红外辐射收集到硫族化物纤维的第一端; 以及耦合到红外透射硫族化物光纤的第二端的光谱仪，用于接收和分析通过硫族化物光纤的反射红外辐射，以获得关于渗透计通过的土壤各个深度处存在的化学物质的信息。

公开(公告)号：US5629248A

公开(公告)日：1997-05-13

申请号：US541391

申请日：1995-10-10

Applicant: Ishwar D. Aggarwal ,  Celia I. Merzbacher ,  Barry B. Harbison ,  John M. Jewell

Inventor： Ishwar D. Aggarwal ,  Celia I. Merzbacher ,  Barry B. Harbison ,  John M. Jewell

IPC: C03C3/32 ,  C03C4/10 ,  C03C13/04

CPC classification number: C03C3/321 ,  Y10S501/904

Abstract: A preferred embodiment of a sulfide glass with improved mechanical and optical properties such as extended transmission in the infrared region of radiation having wavelengths of up to about 15 microns, Tg in the range of 370.degree.-550.degree. C., and thermal stability of 100.degree.-300.degree. C., containing, on mol basis, 36-72% germanium sulfide, 2-38% gallium sulfide and/or indium sulfide, and 26-62% of at least one modifier containing an alkaline earth sulfide. A process for making glass of improved mechanical and optical properties comprises the steps of mixing glass components, including an alkaline earth modifier in elemental or sulfide form; melting the glass components in an inert vessel contained in a sealed ampoule to form a molten mixture; cooling the molten glass mixture to a solid state; annealing the solid glass; and cooling the annealed glass to about room temperature. The glass components can be in elemental form or in sulfide form, and if in elemental form, then sufficient amount of sulfur is added to form sulfides of the glass components.

Abstract translation: 具有改进的机械和光学性能的硫化物玻璃的优选实施方案，例如在波长高达约15微米，Tg在370-550℃范围内的Tg的辐射红外区域中延长的透射，热稳定性为100 含有36-72％的硫化锗，2-38％的硫化镓和/或硫化铟，以及含有碱土金属硫化物的26-62％的至少一种改性剂。 制造改善的机械和光学性质的玻璃的方法包括将元素或硫化物形式的包括碱土金属改性剂的玻璃组分混合的步骤; 将包含在密封的安瓿中的惰性容器中的玻璃组分熔化以形成熔融混合物; 将熔融玻璃混合物冷却至固态; 退火固体玻璃; 并将退火玻璃冷却至约室温。 玻璃组分可以是元素形式或硫化物形式，如果是元素形式，则加入足够量的硫以形成玻璃组分的硫化物。