Abstract:
A method of fabricating doped quartz component is provided herein. In one embodiment, the doped quartz component is a yttrium doped quartz ring configured to support a substrate. In another embodiment, the doped quartz component is a yttrium and aluminum doped cover ring. In yet another embodiment, the doped quartz component is a yttrium, aluminum and nitrogen containing cover ring.
Abstract:
A light amplifying optical fiber capable of restricting a reduction in amplifying efficiency and non-linearity caused by the concentration quenching of erbium ions. At least one of rare earth elements, having an ion radius at least 70% and up to 130% of that of erbium and excluding erbium, for example, Yb, is added to the core portion of an erbium-ion-added light amplifying optical fiber.
Abstract:
반도체 제조에 사용되는 플라즈마 반응용 지그 재료로서 플라즈마 내식성, 특히 불소계 플라즈마 가스에 대한 내식성이 우수하고, 실리콘 웨이퍼에도 이상을 주지 않고 사용 가능한 석영유리 및 석영유리 지그, 또한 그 제조방법을 제공한다. 2종류 이상의 금속원소를 합해서 0.1~20중량% 함유하는 석영유리로서, 상기 금속원소가 주기율표 제 3B족에서 선택된 적어도 1종류인 제 1의 금속원소와, Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, 란타노이드 및 악티노이드로 이루어진 군에서 선택된 적어도 1종류인 제 2의 금속원소로 이루어지고, 제 2의 금속원소 각각의 최대농도는 2.0중량% 이하가 되도록 했다. 플라즈마, 내식성, 석영유리, 지그, 실리콘 웨이퍼
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 atomised 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 atomised spray method for the production of doped quartz glass, particularly for the production of laser-active quartz glass.
Abstract:
An ytterbium-doped optical fiber of the present invention includes: a core which contains ytterbium, aluminum, and phosphorus and does not contain germanium; and a cladding which surrounds this core. The ytterbium concentration in the core in terms of ytterbium oxide is 0.09 to 0.68 mole percent. The molar ratio between the phosphorus concentration in the core in terms of diphosphorus pentoxide and the above ytterbium concentration in terms of ytterbium oxide is 3 to 30. The molar ratio between the aluminum concentration in the core in terms of aluminum oxide and the above ytterbium concentration in terms of ytterbium oxide is 3 to 32. The molar ratio between the above aluminum concentration in terms of aluminum oxide and the above phosphorus concentration in terms of diphosphorus pentoxide is 1 to 2.5.
Abstract:
A mixed quartz powder contains quartz powder and two or more types of doping element in an amount of from 0.1 to 20 mass %. The aforementioned doped elements include a first dope element selected from the group consisting of N, C and F, and a second dope element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, the lanthanides and the actinides. The “quartz powder” is a powder of crystalline quartz or it is a powder of glassy SiO2 particles. It is made form natural occurring quartz or it is fabricated synthetically. The “quartz powder” may be doped. The compounding ratio of the total amount (M1) of the aforementioned first elements and the total amount (M2) of the aforementioned second elements as the ratio of the number of atoms (M1)/(M2) is preferably from 0.1 to 20. Al as well as the aforementioned doped elements is preferably included in a mixed quartz powder of this invention.
Abstract:
Provided is a doped quartz glass member for plasma etching, which is used in a plasma etching process and is free from any problematic fluoride accumulation during use. The quartz glass member for plasma etching is used as a jig for semiconductor production in a plasma etching process, and includes at least two or more kinds of metal elements in a total amount of 0.01 wt % or more to less than 0.1 wt %, in which the metal elements are formed of at least one kind of a first metal element selected from metal elements belonging to Group 3B of the periodic table and at least one kind of a second metal element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, lanthanoids, and actinoids.
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:
The present invention relates to an optical fiber for an optical amplifier and a method for manufacturing the same, which can be applied to an optical transmission system in the S-band area (4130 nm-1530 nm). According to the present invention, silica is used as a base material and the optical fiber for an optical amplifier contains Tm3+ ions and metal ions in a first core layer formed on an inner surface of a second core layer using the MCVD (Modified Chemical Vapor Deposition) method and a solution doping method whereby the practicability and productivity of the optical fiber are remarkably improved.