公开(公告)号：US20100108886A1

公开(公告)日：2010-05-06

申请号：US11155927

申请日：2006-05-18

Applicant: Leslie Brandon Shaw ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

Inventor： Leslie Brandon Shaw ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

IPC: G01J5/02

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/0256 ,  G01J3/06 ,  G01J3/453

Abstract: A Fourier-Transform Infrared (FTIR) spectrometer for operation in the mid- and long-wave infrared region (about 2-15 micron wavelengths) is disclosed. The FTIR spectrometer is composed of IR-transmitting fiber and uses a broadband IR source. A fiber stretcher is provided to provide a path difference between a first path and a second path having a sample associated therewith. Stretching of the fiber provides a path difference sufficient to generate an interferogram that can subsequently be analyzed to obtain information about a sample. A method for use of the apparatus of the invention is also disclosed. The method involves stretching of an IR-transmitting fiber to create a path difference sufficient to generate an interferogram. Various aspects of these features enable the construction of compact, portable spectrometers.

Abstract translation: 公开了用于在中长波红外区域（约2-15微米波长）中操作的傅里叶变换红外（FTIR）光谱仪。 FTIR光谱仪由红外发射光纤组成，使用宽带红外线源。 提供纤维拉伸器以提供具有与其相关联的样品的第一路径和第二路径之间的路径差。 纤维的拉伸提供足以产生干涉图的路径差异，随后可以分析干涉图以获得关于样品的信息。 还公开了本发明的装置的使用方法。 该方法涉及拉伸IR发射光纤以产生足以产生干涉图的路径差。 这些特征的各个方面使得能够构造紧凑的便携式光谱仪。

公开(公告)号：US20100064731A1

公开(公告)日：2010-03-18

申请号：US12491264

申请日：2009-06-25

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

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

IPC: C03B37/01 ,  C03B25/00

CPC classification number: C03B37/01265 ,  C03B2201/86 ,  C03C3/321 ,  C03C13/043

Abstract: A thermally stable chalcogenide glass, a process for making the same, and an optical fiber drawn therefrom are provided. A chalcogenide glass having the composition Ge(5−y)As(32−x)Se(59+x)Te(4+y) (0≦y≦1 and 0≦x≦2) is substantially free from crystallization when it is heated past the glass transition temperature Tg or drawn into optical fibers. A process for making the thermally stable chalcogenide glass includes purifying the components to remove oxides and scattering centers, batching the components in a preprocessed distillation ampoule, gettering oxygen impurities from the mixture, and heating the components to form a glass melt. An optical fiber formed from the chalcogenide glass is substantially free from crystallization and exhibits low signal loss in the near-infrared region, particularly at wavelengths of about 1.55 μm.

公开(公告)号：US07449238B1

公开(公告)日：2008-11-11

申请号：US11861498

申请日：2007-09-26

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

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

IPC: B32B5/16

CPC classification number: C04B35/505 ,  B82Y30/00 ,  C04B35/62655 ,  C04B35/628 ,  C04B35/62886 ,  C04B35/62897 ,  C04B35/645 ,  C04B2235/3203 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/445 ,  C04B2235/528 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/662 ,  C04B2235/721 ,  C04B2235/786 ,  C04B2235/9653 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2995 ,  Y10T428/2996 ,  Y10T428/2998

Abstract: An embodiment of the invention includes a particle. The particle includes a first yttria core; and a fluoride salt coating on the first yttria core. The coating is sufficiently continuous to prevent a large number of sites where a second yttria core may come into contact with the first yttria core. Optionally, the particle has been heated in an oxidizing atmosphere to a temperature in the range of about 400° C. to about 750° C. Optionally, the particle is substantially free of at least one of carbon-containing species and water. Optionally, the fluoride salt is lithium fluoride. Optionally, the fluoride salt is aluminum fluoride.

Abstract translation: 本发明的实施方案包括颗粒。 颗粒包括第一氧化钇核; 和在第一氧化钇核上的氟化物盐涂层。 涂层足够连续以防止大量的第二氧化钇芯可能与第一氧化钇芯接触的位置。 任选地，颗粒已经在氧化气氛中加热至约400℃至约750℃的温度。任选地，该颗粒基本上不含含碳物质和水中的至少一种。 任选地，氟化物盐是氟化锂。 任选地，氟化物盐是氟化铝。

公开(公告)号：US06928227B2

公开(公告)日：2005-08-09

申请号：US09906010

申请日：2001-07-12

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

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

IPC: H01S3/063 ,  H01S3/067 ,  H01S3/17 ,  H01S3/30 ,  G02B6/00

CPC classification number: H01S3/063 ,  H01S3/0637 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/171 ,  H01S3/302

Abstract: This invention pertains to an optical device and method for using a chalcogenide glass waveguide to amplify a pump light beam by means of stimulated Raman scattering and obtaining a depleted pump light beam and an amplified beam at a wavelength higher than the wavelength of the depleted pump light beam.

Abstract translation: 本发明涉及一种使用硫族化物玻璃波导通过受激拉曼散射放大泵浦光束并获得耗尽的泵浦光束和放大的波束的波长高于耗尽的泵浦光的波长的光学装置和方法 光束。

公开(公告)号：US6128429A

公开(公告)日：2000-10-03

申请号：US920878

申请日：1997-08-29

Applicant: Brian Cole ,  Jasbinder Sanghera ,  Brandon Shaw ,  Barry Harbison ,  Ishwar D. Aggarwal

Inventor： Brian Cole ,  Jasbinder Sanghera ,  Brandon Shaw ,  Barry Harbison ,  Ishwar D. Aggarwal

IPC: G02B6/00 ,  C03C3/32 ,  C03C13/04 ,  G02B6/02 ,  H01S3/067

CPC classification number: H01S3/06716 ,  C03C13/043 ,  C03C3/321 ,  G02B6/02

Abstract: Disclosed herein is a low phonon energy glass and a fiber made therefrom. e glass includes the following components given in mol percent:______________________________________ germanium 0.1-30 arsenic 0-40 X 0.01-20 Y 40-85 ______________________________________ wherein X is selected from the group consisting of gallium, indium and mixtures thereof wherein Y is selected from the group consisting of selenium, and mixtures of selenium and up to 50% of sulfur substituted for selenium and the glass also contains 0.001-2 weight percent of a rare earth, based on the weight of said components. The fiber has a minimum loss of less than 5 dB/m.

Abstract translation: 本文公开了一种低声子能量玻璃和由其制成的纤维。 该玻璃包括以摩尔百分比给出的以下组分： - 锗0.1-30 - 砷0-40-X 0.01-20-Y 40-85 - 其中X选自镓，铟及其混合物，其中Y为 选自硒，以及硒的混合物和至多取代硒的50％的硫，并且基于所述组分的重量，玻璃还含有0.001-2重量％的稀土。 光纤具有小于5dB / m的最小损耗。

公开(公告)号：US6021649A

公开(公告)日：2000-02-08

申请号：US256231

申请日：1999-02-24

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 concentric 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: 芯/包覆玻璃光纤通过将核心玻璃棒和包层玻璃棒熔化在彼此不同心的单独的坩埚中，并且相应的芯和包层玻璃熔体彼此接触而熔化成玻璃 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：US5846889A

公开(公告)日：1998-12-08

申请号：US818204

申请日：1997-03-14

Applicant: Barry B. Harbison ,  Jasbinder S. Sanghera ,  John A. Moon ,  Ishwar D. Aggarwal

Inventor： Barry B. Harbison ,  Jasbinder S. Sanghera ,  John A. Moon ,  Ishwar D. Aggarwal

IPC: C03C3/32 ,  C03C13/04

CPC classification number: C03C13/043 ,  C03C3/321 ,  C03C4/10 ,  C03C4/12 ,  Y10S501/904

Abstract: A selenide glass with improved mechanical and optical properties such as ended transmission in the infrared region of radiation having wavelengths beyond 15 microns; Tg in the region of 363.degree.-394.degree. C.; and thermal stability of 85.degree.-145.degree. C. based on the difference between T.sub.g and T.sub.x, comprising, on mol basis, 20-70% germanium selenide, 0.5-25% gallium selenide, indium selenide or mixtures thereof; and 5-50% of at least one alkaline earth in selenide form is described. A process for improving mechanical and optical properties of a selenide glass based on germanium selenide comprises the steps of mixing glass components, including a modifier in elemental or selenide form; melting the glass components 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 is also described. The glass components can be in elemental form or in the form of selenides, and if in elemental form, then sufficient amount of selenium is added to form selenides of the glass components.

Abstract translation: 具有改善的机械和光学性能的硒化物玻璃，例如在具有超过15微米的波长的辐射的红外区域中的扩展传输; 在363°-394℃的范围内的Tg。 和基于Tg和Tx之间的差异的85°-145℃的热稳定性，包括基于摩尔计的20-70％硒化锗，0.5-25％硒化镓，硒化铟或其混合物; 并描述了5-50％的至少一种硒化物形式的碱土金属。 用于改善基于硒化硒的硒化物玻璃的机械和光学性能的方法包括以下步骤：将元素或硒化物形式的包含改性剂的玻璃组分混合; 熔化玻璃组分以形成熔融混合物; 将熔融玻璃混合物冷却至固态; 退火固体玻璃; 并且还描述了将退火玻璃冷却至约室温。 玻璃组分可以是元素形式或以硒化物的形式，如果以元素形式，则加入足量的硒以形成玻璃组分的硒化物。

公开(公告)号：US5779757A

公开(公告)日：1998-07-14

申请号：US670910

申请日：1996-06-26

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

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

IPC: C03B5/225 ,  C03B37/012 ,  C03C1/00 ,  C03C3/32 ,  C03B5/00

CPC classification number: C03B37/01265 ,  C03B37/01268 ,  C03B5/225 ,  C03B5/2252 ,  C03C1/00 ,  C03C1/004 ,  C03C3/321 ,  C03C3/323 ,  C03B2201/86 ,  C03B2201/88 ,  Y10S65/15

Abstract: Hydrogen and/or carbon impurities are removed from chalcogenide or chalcoide glasses by the addition of a halide, such as TeCl.sub.4, to the batch composition. During melting of the batch composition, the metal halide reacts with the hydrogen and/or carbon impurities to form a hydrogen halide and/or carbon tetrahalide gas and a metal which becomes incorporated into the chalcogen-based glass. Useful halides include halides of sulfur, selenium, tellurium, polonium, or halides of a metal (such as aluminum, magnesium, zirconium, or a mixture thereof) that forms a stable oxide. Mixed metal halides may also be used. The glass melt is then distilled, outgassed, homogenized, fined, and annealed. An apparatus specially designed for making a fiber preform by the above process is also described. An annealed preform made by this method may be drawn into a low-loss fiber in the 2 .mu.m to 12 .mu.m range.

Abstract translation: 氢和/或碳杂质通过向批料组合物中加入卤化物如TeCl 4从硫族化物或卤代卤素玻璃中除去。 在批量组合物熔化期间，金属卤化物与氢和/或碳杂质反应形成卤化氢和/或四卤化碳气体，以及掺入硫属元素玻璃中的金属。 有用的卤化物包括形成稳定氧化物的金属（例如铝，镁，锆或其混合物）的硫，硒，碲，onium或卤化物的卤化物。 也可以使用混合金属卤化物。 然后将玻璃熔体蒸馏，除气，均化，精制和退火。 还描述了通过上述方法专门设计用于制造纤维预制件的装置。 通过该方法制备的退火预制件可以被拉制成2μm至12μm范围内的低损耗纤维。

公开(公告)号：US5211731A

公开(公告)日：1993-05-18

申请号：US722447

申请日：1991-06-27

Applicant: Lynda E. Busse ,  Ishwar D. Aggarwal ,  Kenneth J. Ewing ,  Barry B. Harbison

Inventor： Lynda E. Busse ,  Ishwar D. Aggarwal ,  Kenneth J. Ewing ,  Barry B. Harbison

IPC: C03B37/018 ,  C03C17/02

CPC classification number: C03C17/02 ,  C03B37/0183 ,  C03B2201/82

Abstract: A method for producing internally coated glass tube preforms for drawing er optic conductors. The internally coated glass tubes are halogen coated, preferably coated with metal fluorides, so that an optical fiber formed will have a halogen core which conveys light having a wavelength of about 2 to 4 microns, which is in the infrared region, with low attenuation. With one aspect of the method, a carrier gas and a halogenated alkoxide are introduced into a glass tube which has an inner wall and which is surrounded by a resonator for producing a plasma from the halogenated alkoxide in the tube. With another aspect of the method, a blend of a carrier gas, an organometallic compound, and a halogen-containing gas are introduced into a glass tube which has an inner wall and which is surrounded by a resonator for producing a plasma. In both cases, the tube is moved relative to the resonator to form a plasma zone within the tube such that a halide coating is formed on the inner wall of the tube. The plasma generation and inner glass wall coating take place at a relatively low pressure and at a relatively low temperature.

Abstract translation: 一种用于制造用于拉制光纤导体的内置玻璃管预成型件的方法。 内部涂覆的玻璃管是卤素涂层的，优选地涂覆有金属氟化物，使得形成的光纤将具有卤素芯，该卤素芯在低红外区域传输波长为约2至4微米的光，具有低衰减。 通过该方法的一个方面，载体气体和卤代醇盐被引入到具有内壁并由用于从管中的卤代醇盐产生等离子体的谐振器包围的玻璃管中。 在该方法的另一方面，将载气，有机金属化合物和含卤素气体的共混物引入具有内壁并由用于产生等离子体的谐振器包围的玻璃管中。 在两种情况下，管相对于谐振器移动以在管内形成等离子体区，使得在管的内壁上形成卤化物涂层。 等离子体产生和内部玻璃壁涂层在相对低的压力和相对低的温度下进行。