摘要:
A method of producing an optical fiber, comprising: (a) a resin application step of applying an ultraviolet curable resin, onto an outer circumference of an optical fiber; (b) a heating step of heating the ultraviolet curable resin; and (c) a light irradiation step of irradiating the ultraviolet curable resin with ultraviolet light emitted from a semiconductor light emitting element, in a state in which the ultraviolet curable resin is heated, to cure the ultraviolet curable resin into a coating resin.
摘要:
L'invention concerne un procédé de fabrication d'une fibre optique résistante aux radiations et une fibre optique résistante aux radiations ainsi obtenue. Selon l'invention, le procédé comporte les étapes suivantes : a) Fabrication d'une préforme de fibre optique de silice ; b) Formation dans la préforme d'une cavité longitudinale ; c) Fibrage de ladite préforme de manière à former une fibre optique (1) comprenant un coeur (2), une gaine optique (6) et au moins une cavité longitudinale (3) ayant au moins une ouverture (13) à une extrémité de la fibre optique (1) ; d) Application, pendant l'étape c) de fibrage, d'un revêtement hermétique au gaz (4) ; e) Exposition de la fibre optique (1) à une substance gazeuse, comprenant de préférence de l'hydrogène gazeux et/ou du deutérium gazeux, de manière à incorporer ladite substance gazeuse dans la silice via ladite ouverture (13) ; f) Fermeture de toute ouverture (13) aux deux extrémités de la fibre optique (1).
摘要:
A UVLED apparatus (and related system and method) provide efficient curing of an optical-fiber coating on a drawn glass fiber. The apparatus employs one or more UVLEDs that emit electromagnetic radiation into a curing space. An incompletely cured optical-fiber coating, which is formed upon a glass fiber, absorbs emitted and reflected electromagnetic radiation to promote efficient curing.
摘要:
An apparatus that exposes only a selected portion of a length of optical fiber to a hydrogen atmosphere loading process. The apparatus includes a loading chamber that encloses at least the selected portion of the optical fiber and contains a hydrogen atmosphere. At least one heating element regionally heats the hydrogen atmosphere surrounding the selected portion. The heating element may heat the hydrogen atmosphere to a temperature of at least 250 DEG C.
摘要:
An optical fiber comprises a core region, an inner cladding region, and an outer cladding region. The core region, the inner cladding region, and the outer cladding region extend along the fiber axis. A relation of n1
摘要:
An optical fiber (10) consisting of a core area (1) and a clad area (2) surrounding the core area (1), a plurality of areas consisting of sub-media (4) each having a refractive index different from that of a main medium (3) constituting the clad area (2) being provided in the main medium (3), wherein the areas consisting of these sub-media (4) are disposed in specified one or a plurality of toroidal areas (21-2m), and the centers of the areas consisting of the sub-media (4) within respective toroidal areas (21-2m) are respectively disposed on the same circumferences having the centers at the center of the core.
摘要:
An optical waveguide, such as an optical fiber, including a length of waveguide and at least one discrete longitudinal section having increased photosensitivity with respect to other portions of the waveguide.