Abstract:
PROBLEM TO BE SOLVED: To provide an isopipe for use for alkali glass, in an isopipe adapted for use in a fusion process for making a glass sheet.SOLUTION: Molten glass is formed into a glass ribbon using the isopipe. Glass sheets are separated from the glass ribbon. The isopipe includes an alumina refractory that forms at least a part of at least one surface of the isopipe which comes into contact with the molten glass during the formation of the ribbon. The minimum temperature of molten glass which contacts the isopipe's alumina refractory during the formation of the glass ribbon is T. The molten glass has a tin solubility Sat T. The concentration of tin Cin the molten glass satisfies the relationship: Ctin≥0.5S. The tin concentration in the alumina refractory on an oxide basis is less than or equal to 1.0 wt.%. The sum of the titanium, zirconium, and hafnium concentrations in the alumina refractory on an oxide basis is less than or equal to 1.5 wt.%.
Abstract translation:待解决的问题:提供一种用于碱玻璃的等压槽,适用于制造玻璃板的熔融方法中的等压槽。 解决方案:使用等压槽将熔融玻璃形成玻璃带。 玻璃板与玻璃带分离。 等压槽包括形成在形成带期间与熔融玻璃接触的等压槽的至少一个表面的至少一部分的氧化铝耐火材料。 在形成玻璃带期间与等压槽的氧化铝耐火材料接触的熔融玻璃的最低温度为T min SB>。 在T min SB>时,熔融玻璃的锡溶解度S 锡 SB>。 熔融玻璃中锡C 锡 SB>的浓度满足关系:Ctin≥0.5S锡 SB>。 基于氧化物的氧化铝耐火材料中的锡浓度小于或等于1.0重量%。 基于氧化物的氧化铝耐火材料中的钛,锆和铪浓度的总和小于或等于1.5重量%。 版权所有(C)2012,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To attain extended lifetime of an excimer laser optical component or an excimer laser optics and to provide a method for producing the optical component or the optics. SOLUTION: Optical lithography components or elements are hermetically sealed by a durable coating of a hermetically sealing material selected from a group consisting of oxide films and fluorinated oxide films. The durable coating of the hermetically sealing material is applied to one of more faces of the optical element, either directly to the face of the element or over a selected coating (for example, an anti-reflective coating) that has been applied to the element. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
Filament in tube and stick in tube processes of forming optical fiber are described. A solid or monolithic core feedstock (110) is disposed in a hollow cladding structure (112) to form a loosely filled cladding structure. The filled cladding structure is heated to a draw temperature approximately equal to the softening temperature of the cladding structure. The feedstock (110) melts and fills the heated portion of the cladding structure forming a filled core which can then be drawn into optical fiber or to an optical can which can then be further overclad consolidated and drawn into fiber. Feedstock (110) and cladding structures (112) having widely varying coefficients of expansion may be employed. The resulting fiber can be readily designed to be fused to existing installed fibers.
Abstract:
Filament in tube and stick in tube processes of forming optical fiber are described. A solid or monolithic core feedstock (110) is disposed in a hollow cladding structure (112) to form a loosely filled cladding structure. The filled cladding structure is heated to a draw temperature approximately equal to the softening temperature of the cladding structure. The feedstock (110) melts and fills the heated portion of the cladding structure forming a filled core which can then be drawn into optical fiber or to an optical can which can then be further overclad consolidated and drawn into fiber. Feedstock (110) and cladding structures (112) having widely varying coefficients of expansion may be employed. The resulting fiber can be readily designed to be fused to existing installed fibers.
Abstract:
The invention provides a selectively absorbing optical fiber that is transparent at pump wavelengths, and highly absorbing at signal wavelengths. The selectively absorbing optical fiber includes selectively absorbing species, such as rare earth ions, in concentrations sufficient to provide the desired absorbance selectivity. The fiber is useful as a fiber pigtail for pump lasers in optical amplifiers, where it can reduce the effects of multi-path interference by absorbing stray light with wavelengths in the signal band.
Abstract:
Alkali tungstate, molybdate and vanadate glasses, and telecommunications components embodying such glasses, the compositions of the glasses consisting essentially of 15-70 mol percent of at least one oxide selected from the group consisting of WO3, MoO3 and VO2.5, 0-35% CrO3, 0-15% UO3, the total WO3 plus MoO3 plus VO2.5 plus CrO3 plus UO3 being 50-70%, 20-50% R2O where R represents at least two elements selected from the group consisting of Li, Na, K, Rb, Cs, Ag and T1, and optionally containing 0-10% MO where M is selected from the groups of elements consisting of Ca, Ba, Sr, Mg, Cd, Pb, 0-5 % X2O3 where x is at least one element selected from the group consisting of Al, Ga, In and Bi, 0-5% of at least one transition metal oxide, 0-15% P2O5 and/or TeO2 and 0-5% of a rare earth oxide selected from the lanthanide series.
Abstract:
The present invention relates to a glass matrix which includes 4-70 wt.% SiO 2, 0.5-20 wt.% Al2O3, 0-20 wt.% R2O, 0-30 wt.% R'O, 8-85 wt.% Ta2O5, 0-40 wt.% Nb2O5, and 0.01-1.0 wt.% R''2O3, where R2O + R'O is between about 2-35 wt.%, Ta2O5 + Nb2O5 is between about 8-85 wt.%, R is selected from a group consisting of Li, Na, K, and combinations thereof, R' is selected from a gro up consisting of Ba, Sr, Ca, Mg, Zn, Pb, and combinations thereof, and R'' is a rare earth element. The present invention also relates to use of the glass matrix in forming optic waveguides such as optic amplifiers. The present invention further relates to a transparent glass ceramic that contains pyrochlore, perovskite, or a combination thereof as its major crystal phase, and includes 4-40 wt.% SiO2, 1-15 wt.% Al2O3, 0-20 wt.% K2O, 0-12 wt.% Na2O, 0- 5 wt.% Li2O, 8-85 wt.% Ta2O5, and 0-45 wt.% Nb2O5, wherein Ta2O5 + Nb2O5 is at least about 20 wt.% and (K2O + Li2O + Na2O) is between about 5-20 wt.%. Also disclosed is a method of making the glass ceramic and use of the glass ceram ic as a ferro-electric component in electro-optical devices or as a filtering core in an optical filtering device.
Abstract:
The present invention relates to semiconductor-on-insulator structures having strained semiconductor layers. According to one embodiment of the invention, a semiconductor-on-insulator structure has a first layer including a semiconductor material, attached to a second layer including a glass or glass-ceramic, with the CTEs of the semiconductor and glass or glass-ceramic selected such that the first layer is under tensile strain. The present invention also relates to methods for making strained semiconductor-on-insulator layers.
Abstract:
The invention provides a selectively absorbing optical fiber that is transparent at pump wavelengths, and highly absorbing at signal wavelengths. The selectively absorbing optical fiber includes selectively absorbing species, such as rare earth ions, in concentrations sufficient to provide the desired absorbance selectivity. The fiber is useful as a fiber pigtail for pump lasers in optical amplifiers, where it can reduce the effects of multi-path interference by absorbing stray light with wavelengths in the signal band.