Abstract: The invention relates to a device for pair-wise coupling the ends of two groups of optical fibres which are retained by means of clamping devices on respective slides which are displaceable essentially in the longitudinal direction of the optical fibres so that the end faces of one group of optical fibres can be positioned against the end faces of the other group of optical fibres; the device comprises an alignment block which is arranged between the slide and which comprises guide grooves for the alignment of the individual optical fibres in which the ends of the optical fibres, inserted in associated fan-out combs, are arranged and retained by pressure members which exert different forces.

Abstract: The invention relates to an arrangement for forming a strain-relief connection which is safeguarded against axial displacement between an optical fibre cable containing strain-relief elements, at least one end of an optical waveguide which is closed by means of a sleeve projecting from the end portion of the cable, to a housing of a coupling device by means of a spacer sleeve which radially engages with both the housing and the end portion of the cable sheath. Excessive bending of the ends of the optical waveguide can be prevented when a covering sleeve clamping the strain-relief elements of the cable is connected to the end portion of the cable sheath, the covering sleeve including a longitudinal section having radially outwardly projecting form-coupling elevations and in that the spacer sleeve has a center portion which surrounds the ends of the optical waveguide with some spacing, and in that the spacer sleeve consists of two half-shells.