Abstract:
The invention relates to a method for the economic production of a blank for a component made from laser-active quartz glass in any form or dimension. The method comprises the following method steps: a) preparation of a dispersion with a solids content of at least 40 wt. %, comprising SiO2 nanopowder and doping agents, including a cation of the rare earth metals and transition metals in a fluid, b) granulation by agitation of the dispersion, with removal of moisture to form a doped SiO2 granulate of spherical porous granular particles with a moisture content of less than 35 wt. % and a density of at least 0.95 g/cm3, c) drying and purification of the SiO2 granulate, by heating to a temperature of at least 1000° C. to form doped porous SiO2 grains with an OH content of less than 10 ppm and d) sintering or fusing the doped SiO2 grains in a reducing atmosphere to give the blank made from doped quartz glass.
Abstract:
A thulium doped silicate glass composition which contains SiO2, Al2O3, and La2O3 emits visible and UV light when excited by infrared light. The glass composition may also contain GeO2 and Er2O3. When excited by infrared light of about 1060 nm, the glass emits visible light at fluorescent transitions of the Tm3null ions with major broad features at 365, 455, 472, 651, and 791 nm.
Abstract translation:含有SiO 2,Al 2 O 3和La 2 O 3的掺doped硅酸盐玻璃组合物在被红外光激发时发射可见光和UV光。 玻璃组合物还可以含有GeO 2和Er 2 O 3。 当由约1060nm的红外光激发时,玻璃在365nm,455nm,472nm,651nm和791nm处具有主要的广泛特征,在Tm 3+离子的荧光转变下发射可见光。
Abstract:
The present invention is directed at a family of glasses capable of absorbing UV radiation and filtering yellow light in the visible region of the spectrum, the family of glasses having a composition consisting essentially, in terms of weight percent on the oxide basis, of: 55-95.7% SiO2, 0-28% B2O3, 0.5-18% Al2O3, 0-4% SrO, 0-13% BaO, 0-13% CaO, 0-8% MgO, 0-7.5% Na2O, 0-9.5% K2O, 0-1.5% Li2O, 0-1.5% Sb2O3, 0.4-4.5% Nd2O3, and 0.1-1% CeO2. Glasses of the present invention are capable of employment as envelopes for tungsten-halogen lamps and other high temperature light sources, as well as sealed-beam incandescent headlights. Also, the glasses can be used as for other applications where high contrast and enhanced visible properties of transmitted or reflected visible light can be a benefit, such as opthalmic glass, computer screens with enhanced contrast properties, or glass hosts for lasers.
Abstract translation:本发明涉及能够吸收紫外辐射并过滤光谱可见光区域中的黄光的玻璃系列,具有以氧化物为基准的基本上以重量百分数计的组成的玻璃系列为:55 -95.7%SiO 2,0-28%B 2 O 3,0.5-18%Al 2 O 3,0-4%SrO,0-13%BaO,0-13%CaO,0-8%MgO,0-7.5%Na 2 O,0-9.5 %K2O,0-1.5%Li2O,0-1.5%Sb2O3,0.4-4.5%Nd2O3和0.1-1%CeO2。 本发明的玻璃能够用作钨卤素灯和其他高温光源以及密封束白炽灯的信封。 此外,眼镜可以用于其他应用,其中透射或反射的可见光的高对比度和增强的可见性可以是有益的,例如眼镜玻璃,具有增强的对比度性质的计算机屏幕或用于激光的玻璃主机。
Abstract:
A preform for a low loss fiber optic cable and method and apparatus for fabricating such a preform is provided. The method includes providing AlCl3 and CVD precursors and locally doping CaCl3. Alkali and/or alkaline earth fluxing agents can be introduced. The alkali and/or alkaline earths are doped along with the aluminum into the silica glass core.
Abstract:
A method of making an erbium-doped optical fiber for use in optical amplifiers according to the present invention includes the step of providing a substrate tube. High purity silica-based cladding layers are deposited on the inside of the tube. A core glass that includes silica, Al, a non-fluorescent rare-earth ion, Ge, Er, and Tm is then deposited in the tube. The non-fluorescent rare-earth ion may be La and the core may further include F. The tube is then collapsed to form a preform. Finally, the preform is drawn to yield optical fiber. The core glass may be substantially homogeneous. The core may include at least two regions, wherein one region contains a substantially different Er to Tm ratio than the other region. Said regions may be in an annular arrangement. The core of such a waveguide may be made with multiple MCVD passes, multiple sol-gel passes or with multiple soot deposition, solution doping, and consolidation passes.
Abstract:
The electric incandescent lamp has a quartz glass lamp vessel (1) or envelope (4') around the lamp vessel, which has a red coloured dope in the area at the side of the incandescent body (3). The quartz glass with red dope contains samarium.sup.II oxide, aluminium oxide, titanium dioxide, and silicon dioxide, the analysis of the glass in its oxidized form being Sm.sub.2 O.sub.3 1 to 3% by weight, Al.sub.2 O.sub.3 up to 3% by weight, TiO.sub.2, rest SiO.sub.2, the molar ratio Al/Sm being at least about 2 and the molar ratio Sm/Ti being from 2 to 8.
Abstract translation:电白炽灯具有在灯泡周围的石英玻璃灯容器(1)或外壳(4'),其在白炽体(3)一侧的区域中具有红色涂料。 具有红色涂料的石英玻璃含有钐II氧化物,氧化铝,二氧化钛和二氧化硅,其氧化形式的玻璃分析为1至3重量%的Sm 2 O 3,3重量%的Al 2 O 3,TiO 2,其余为SiO 2 ,摩尔比Al / Sm为至少约2,摩尔比Sm / Ti为2至8。
Abstract:
One aspect relates to a method for the manufacture of doped quartz glass. Moreover, one aspect relates to quartz glass obtainable according to the method including providing a soot body, treating the soot body with a gas, heating an intermediate product and vitrifying an intermediate product.
Abstract:
The invention relates to a method for producing a doped SiO2 slurry in which an SiO2 suspension is brought into interaction with at least one doping solution, wherein the SiO2 suspension and/or the doping solution act on one another in the form of an atomized spray, the average droplet diameter of which is in the range between 10 μm and 100 μm. The invention further relates to the use of an SiO2 slurry doped by the atomized spray method for the production of doped quartz glass, particularly for the production of laser-active quartz glass.
Abstract:
Provided is a manufacturing method for an optical fiber preform of which the core is doped with a rare earth element. The method includes: depositing glass particles within a silica tube by the modified chemical vapor deposition method, the glass particles mainly consisting of silicon dioxide; adding the rare earth element and aluminum to the glass particles within the silica tube by the solution doping method; heating the silica tube while flowing a phosphorous-containing gas into the silica tube to sinter the glass particles within the silica tube while adding the phosphorous; and heating and collapsing the silica tube to which the rare earth element, the aluminum, and the phosphorous are added.
Abstract:
Provided is a manufacturing method for an optical fiber preform of which the core is doped with a rare earth element. The method includes: depositing glass particles within a silica tube by the modified chemical vapor deposition method, the glass particles mainly consisting of silicon dioxide; adding the rare earth element and aluminum to the glass particles within the silica tube by the solution doping method; heating the silica tube while flowing a phosphorous-containing gas into the silica tube to sinter the glass particles within the silica tube while adding the phosphorous; and heating and collapsing the silica tube to which the rare earth element, the aluminum, and the phosphorous are added.