Abstract:
Various embodiments described herein include rare earth doped glass compositions that may be used in optical fiber and rods having large core sizes. Such optical fibers and rods may be employed in fiber lasers and amplifiers. The index of refraction of the glass may be substantially uniform and may be close to that of silica in some embodiments. Possible advantages to such features include reduction of formation of additional waveguides within the core, which becomes increasingly a problem with larger core sizes.
Abstract:
The invention relates to a x-ray opaque glass which belongs to a SiO2 and Yb2O3 system and can contain, when necessary, additives for adapting the properties thereof. A method for producing said glass and for using it, in particular in the form of a dental glass are also disclosed.
Abstract translation:本发明涉及属于SiO 2和Y 2 O 3 O 3系统的x射线不透明玻璃,并且当需要时, 用于调整其性能的添加剂。 还公开了一种用于生产所述玻璃并用于其的方法,特别是牙科玻璃的形式。
Abstract:
A light amplification optical fiber capable of suppressing a decrease in an amplification efficiency thereof ascribed to the concentration quenching of erbium ions, and the nonlinearity thereof is provided. At least one rare earth element, for example, Yb, which is other than the erbium ions, and which has an ion radius not smaller than 70% and not larger than 130% of that of erbium ions is doped to a core portion of an erbium ion-doped light amplification optical fiber.
Abstract:
A light amplification optical fiber capable of suppressing a decrease in an amplification efficiency thereof ascribed to the concentration quenching of erbium ions, and the nonlinearity thereof is provided. At least one rare earth element, for example, Yb, which is other than the erbium ions, and which has an ion radius not smaller than 70% and not larger than 130% of that of erbium ions is doped to a core portion of an erbium ion-doped light amplification optical fiber.
Abstract:
An assembly for making and/or using carbon nanotubes includes a substrate and at least one of carbon nanotubes and precursors thereof. The substrate is SiO2 and has a thickness of less than 500 µm. Further, the substrate is bendable and has a surface with non-flat or non-polished texture such that surface comprises raised and recessed features. Carbon nanotubes and/or precursors thereof are coupled to recessed features of the substrate.
Abstract:
A system and method for sintering a thin, high purity fused silica glass sheet having a thickness of 500 μm or less, includes a step of rastering a beam of a laser across a sheet of high purity fused silica soot; wherein a pattern of the rastering includes tightly spacing target locations on the sheet such that the laser sinters the soot and simultaneously forms tiny notches on a first major surface of the sheet when viewed in cross-section, wherein the tiny notches are crenellated such that at least some of the notches have generally flat bottom surfaces and at least some respective adjoining caps have generally plateau top surfaces offset from the bottom surfaces by steeply-angled sidewalls.
Abstract:
A system and method for making a thin sintered silica sheet is provided. The method includes providing a soot deposition surface and forming a glass soot sheet by delivering a stream of glass soot particles from a soot generating device to the soot deposition surface. The method includes providing a sintering laser positioned to direct a laser beam onto the soot sheet and forming a sintered glass sheet from the glass soot sheet by delivering a laser beam from the sintering laser onto the glass soot sheet. The sintered glass sheet formed by the laser sintering system or method is thin, has low surfaces roughness and/or low contaminant levels.
Abstract:
Die Erfindung beschreibt ein Verfahren zur Herstellung von Quarzglas, das zusätzlich zu einer Dotierung mit Seltenen Erden und/oder Übergangsmetallen die Fluorierung des Quarzglases umfasst. Durch das beschriebene Verfahren lässt sich ein Ausdiffundieren er Dotanden während der Fluorierung verhindern. Weiterhin betrifft die Erfindung das nach dem erfindungsgemäßen Verfahren erhältliche Quarzglas sowie dessen Verwendung als laseraktives Quarzglas, zur Erzeugung von lichtführenden Strukturen und für den Einsatz in optischen Anwendungen.