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 method for preparing doped oxide material, in which method substantially all the reactants forming the oxide material are brought to a vaporous reduced form in the gas phase and after this to react with each other in order to form oxide particles. The reactants in vaporous and reduced form are mixed together to a gas flow of reactants, which gas flow is further condensated fast in such a manner that substantially all the component parts of the reactants reach a supersaturated state substantially simultaneously by forming oxide particles in such a manner that there is no time to reach chemical phase balances.
Abstract:
The invention starts from a known component of quartz glass for use in semiconductor manufacture, which component at least in a near-surface region shows a co-doping of a first dopant and of a second oxidic dopant, said second dopant containing one or more rare-earth metals in a concentration of 0.1-3% by wt. each (based on the total mass of SiO2 and dopant). Starting from this, to provide a quartz glass component for use in semiconductor manufacture in an environment with etching action, which component is distinguished by both high purity and high resistance to dry etching and avoids known drawbacks caused by co-doping with aluminum oxide, it is suggested according to the invention that the first dopant should be nitrogen and that the mean content of metastable hydroxyl groups of the quartz glass is less than 30 wtppm.
Abstract:
An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n1; and (ii) at least one silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said cladding having a plurality of stress rods and a plurality of air holes extending longitudinally through the length of said optical fiber; wherein said optical fiber supports a single polarization mode or poses-polarization maintaining properties within the operating wavelength range.
Abstract:
An optical fiber can efficiently excite metallic ions by a pump lightwave, and an optical fiber amplifier and an optical fiber laser light source both incorporate the optical fiber. The optical fiber comprises (a) a solid region that has a first region doped with metallic ions and a second region surrounding the first region and that allows a lightwave for exciting the metallic ions to travel in a multiple mode and (b) a third region surrounding the second region and having a plurality of holes stretching along the length of the optical fiber. The optical fiber has a structure in which the first region is supplied with the power of a lightwave that is included in the pump lightwave and that is in a mode having no intensity peak at the center axis of the solid region.
Abstract:
An optical fiber, comprising: (i) a rare earth doped silica based elongated core with a first refractive index (n1) with an aspect ratio of 1:5 to 1; (ii) a silica based moat abutting and at least substantially surrounding the core, the moat having a refractive index n2, wherein n2 n3; and n3>n2; (iv) a silica based outer cladding surrounding said inner cladding, the outer cladding having a fourth refractive index (n4), such that n4
Abstract translation:一种光纤,包括:(i)具有长宽比为1:5至1的第一折射率(n <1> 1)的稀土掺杂二氧化硅基细长芯; (ii)邻接并且至少基本上围绕所述芯的基于二氧化硅的护城河,所述护城河具有折射率n 2 N 2,其中n 2 ; (iii)围绕所述护城河的基于二氧化硅的内包层,所述内包层具有第三折射率(n 3/3),其中n 1 <3> n 3 < SUB>; 和n 3 3 sub> n 2; (iv)围绕所述内包层的基于二氧化硅的外包层,所述外包层具有第四折射率(n≥4 sub>),使得n 4 光纤在工作波长带表现出单极化。
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:
There is disclosed a method of manufacturing an optical fiber whose core is made of multi-component glass without fluctuation in its outer diameter and occurrence of sudden breakage thereof, with a technique of unifying a core rod and a cladding tube at the time of drawing, and yet drawing them; and the optical fiber having a multi-component glass core are disclosed.
Abstract:
A method for preparing doped oxide material, in which method substantially all the reactants forming the oxide material are brought to a vaporous reduced form in the gas phase and after this to react with each other in order to form oxide particles. The reactants in vaporous and reduced form are mixed together to a gas flow of reactants, which gas flow is further condensated fast in such a manner that substantially all the component parts of the reactants reach a supersaturated state substantially simultaneously by forming oxide particles in such a manner that there is no time to reach chemical phase balances.
Abstract:
A system and a method in producing a doped glass material, particularly a glass material to be used in light amplifying optical waveguides. The method comprising: bringing at least a first dopant and a second dopant of the glass material into a vaporous gas phase; controlling the vapour pressure of the gas phase of each dopant by bringing each dopant to a desired temperature which is simultaneously used to control the composition of their gas phase; and mixing each vaporous dopant with the gas flow of the basic material for the glass material, which basic material is also in a gas phase and is used as a carrier gas for the dopants, wherein said basic material and said dopants together constitute the required gas flow of so-called reactants, to be used for producing the glass material; performing the mixing so that said dopants are each mixed in turn with the same gas flow of the basic material in such an order that said desired temperatures of the dopants are increasing in relation to one another.