Abstract: An optical waveguide feedthrough comprising

Abstract: A method of making an optics package is described in which an exposed length of optical fiber is deliberately subject to a predetermined bend. The relationship between the exposed length of the optical fiber and a distance between a location at which it is supported and a fixing point on an optical device is determined taking into account the induced strain in the optical fiber. An optics package designed according to the method is also set forward.

Abstract: A hermetically sealed structure, particularly for use in an optoelectronic device is described. The structure comprises an outer sleeve of a material resistant to moisture ingress with an insert located in the sleeve at one end portion thereof and having a bore therethrough. An optical fibre extends through the bore and beyond the end portion of the sleeve with adhesive films respectively securing the insert to the sleeve and the optical fibre to the insert. A method of assembly for such a package is also described.

Abstract: Attachment of an optical fibre (22) to a planar substrate (17) having a major face and an edge surface (14) perpendicular to the major face, the optical fibre (22) being positioned in a groove (18) provided in the major face of the substrate (17) and extending over the edge of the substrate, a mechanical restraint (24) such as a transparent apertured disc being affixed to the edge surface (19) of the substrate, e.g. by a light-cured adhesive (17) to resist movement of the optical fibre (22) in a direction substantially perpendicular to the major face.

Abstract: An optical fiber is connected to an optical device having a substrate with locating means, such as a V-groove, for locating the fiber on the substrate. Attachment means secure the optical fiber at a position remote from the locating means so that the fiber is held in a state of elastic deformation to assist in holding the fiber in contact with the locating means without it being secured thereto.