Abstract:
A method of protecting a silica-containing article (10) used in the manufacture of an optical fiber includes the step of applying to the silica- containing article a protective layer (30) that facilitates removal of particulates (20) that deposit on the protective layer (30) and that ablates during or can be removed before subsequent processing of the silica-containi ng article (10). An intermediate product used in the manufacture of an optical fiber and protected against break-inducing particulates (20) includes a sili ca- containing article (10), and a protective layer (30) that facilitates remova l of particulates (20) that have deposited on the protective layer (30) and th at can be ablated during or removed before subsequent processing of the intermediate product.
Abstract:
An optical waveguide fiber with a fatigue resistant TiO2-SiO2 outer cladding including a cylindrical outermost layer with TiO2 concentration greater than 10.5 wt.% and thickness less than 3 mu m. The fiber may include a two layer outer cladding with higher TiO2 concentration in the outer layer. The outer cladding may ionclude a plurality of inhomogeneities dispersed in a TiO2-SiO2 matrix. A method of making an optical waveguide fiber with a fatigue resistant TiO2-SiO2 outer cladding, and a substantially glass blank for drawing into such fiber, wherein a glass soot TiO2-SiO2 outermost layer, with an initial TiO2 concentration greater than 10.5 wt.%, is deposited on a preform, and the preform is exposed to an atmosphere of chlorine at a high temperature, and the resulting TiO2 concentration in the outermost layer of the TiO2-SiO2 outer cladding of the substantially glass blank is less than the initial TiO2 concentration. In the glass blank form, the outermost layer includes a substantial volume percentage of crystalline phases and in the fiber form, the outermost layer includes inhomogeneities.
Abstract:
Method wherein continuous indexed lengths of optical fiber are automatically measured for load at failure for each failure below a predetermined maximum stress. A predetermined length of optical fiber is indexed. The optical fiber is clamped at one or more clamp points along its length. Increasing tension is applied to a first indexed length of optical fiber between at least one clamp point and a tension application means. Increasing tension is applied between an initial value and the predetermined maximum load. The increasing tension is measured during its application. If failure occurs, the actual load at failure is detected while the increasing tension is being applied. When failure does not occur, the first length of optical fiber is released and a second length of optical fiber is indexed to the position where increasing tension is applied to the second length between at least one clamp point and the tension application means.
Abstract:
Disclosed is a method of proof testing a sheet of brittle material such as a glass or glass-ceramic based material. The method comprises bending the glass sheet over at least one arcuate member to detect sheets having a strength greater than a predetermined value. The method includes imparting a bend to the sheet and producing relative motion between the sheet and the bend such that the bend traverses the sheet, and wherein tensile stress induced in a surface of the sheet by the bend corresponds to the predetermined strength value. An apparatus for performing the proof testing is also disclosed.
Abstract:
The present invention provides materials suitable for use as secondary coatings of optical fibers. According to one embodiment of the invention, a curable composition includes an oligomer and at least one monomer, which when cured forms a cured polymeric material having a Young's modulus of at least about 1200 MPa, and a fracture toughness of at least about 0.7 MPa m . According to another embodiment of the invention, a coated optical fiber includes an optical fiber; a primary coating encapsulating the optical fiber; and a secondary coating encapsulating the primary coating, the secondary coating having a Young's modulus of at least about 1200 MPa, and a fracture toughness of at least about 0.7 MPa m .
Abstract translation:本发明提供了适用于光纤二次涂层的材料。 根据本发明的一个实施方案,可固化组合物包括低聚物和至少一种单体,其在固化时形成具有至少约1200MPa的杨氏模量和至少约0.7MPa的断裂韧性的固化聚合材料, > m 1/2。 根据本发明的另一实施例,涂覆光纤包括光纤; 封装光纤的初级涂层; 以及包封初级涂层的二次涂层,二次涂层的杨氏模量为至少约1200MPa,断裂韧性为至少约0.7MPa·m 1/2。
Abstract:
A print press system and a method are described herein that print an electronic circuit onto a material (e.g., glass substrate, plastic film, plastic film-glass substrate laminate). In exemplary applications, the print press system can print an electronic circuit onto a material to form, for instance, a flexible Liquid Crystal Display, a retail point of purchase sign and an e-book.
Abstract:
Disclosed are controlled chemical etching processes used to modify the geometry of surface flaws in thin glass substrates and glass substrate assemblies formed therefrom, and in particular glass substrates suitable for the manufacture of active matrix displays that are essentially free of alkali metal oxides such as Na2O, K2O and Li2O.
Abstract:
Disclosed is an electronic device comprising a glass, glass ceramic, or ceramic sheet having a thickness less than about 0.4 mm and wherein a minimum strength of the inorganic substrate is greater than about 500 MPa. Also disclosed is a method of making an electronic device including drawing a viscous inorganic material to form an inorganic ribbon having opposing as-formed edges along a length of the ribbon, separating the ribbon to form a substrate sheet of inorganic material comprising two as-formed edges and forming a device element on the inorganic substrate.