PHI DEVICE FOR FIXING AND POSITIONING AN OPTICAL FIBRE END AND USE OF SAID DEVICE

摘要

The invention relates to a device for fixing and positioning an optical fibre end which is held in a sleeve and has an end face which is perpendicular or obliquely slanted relative to the longitudinal axis. The device comprises a hollow cylindrical element into which the sleeve can be inserted coaxially. It is particularly important in optical transmission systems for the optical fibre ends to be positioned accurately, both in the axial and radial directions, relative to the active faces of opto-electronic emitter or receiver elements. A device is disclosed with which such accurate positioning can be achieved. The device comprises a hollow cylindrical element (3') which at one end is closed with a stop element (4') provided with a coaxial bore (5'). The stop element is shaped as follows in relation to the interior (6') of the hollow cylindrical element (3'): the stop element (4') is inclined on one side of the axis (A) of the bore (5') and perpendicular on the other side. The stop element (4') forms a face made up of two mutually inclined partial surfaces (41, 42), one of which is at an oblique angle to the optical axis (A) while the other is perpendicular to said axis. The stop element (4) serves as a stop element for the sleeve (7, 7') in which the optical fibre end is held, and the end face of the sleeve either has an inclined region (2) or is aligned at right angles to the optical axis.