Radiall Industrie

Huan B Yin

Norbert Valade

A ferrule of a connector for single-mode optical fibers with polarization maintenance is provided and comprises a tubular outer body which has at its front end a wall that is conical in profile, an inner cylindrical elements inside which an optical fiber can be immobilized, particularly by gluing, said inner element protruding from said end of the outer body, said outer body comprising radial holes for the insertion of devices such as piercers for mechanically centering the inner element in the outer body. The connector includes a socket (18) attached in rotation around said body (1) and means (2) for immobilizing said socket, preferably by gluing, on said body, said socket being, moreover, equipped with an indexing reference (19).

Ferrule of a connector for single-mode optical fibers with polarization

The invention relates to an attenuator for single-mode optical fibers entailing two male ferrules attached to the end of the fibers to be connected, and a female access coupler in the central part of which is a spherical thrust bearing body. A transverse axial orifice is provided in the thrust bearing body and a contact projection engages each of the male ferrules. Each male ferrule has an axial tubular protuberance that can be inserted into the orifice of the thrust bearing body and an annular groove set back from the protuberance and surrounding the back part of the latter, which groove has a wall, preferably conical in profile. The end (8) of the protuberance (6) of each of the male ferrules and the end of the corresponding immobilized fiber (7) inside said protuberance are tilted in relation to a plane perpendicular to the longitudinal axis of a ferrule; the male ferules (4) and the female access coupler (1) comprise corresponding indexing references (10, 11) that fix a predetermined angular orientation of the opposite optical fibers (7), and the axes of said fibers are offset from the optical axis of the attenuator by a fixed value.

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Paris, France

Huan B Yin