Abstract: The invention in certain embodiments relates to a spliced connection between first and second optical fibres, each of which has a fibre core and fibre cladding resting against said core. In said connection, the fibre cladding of at least one of the two fibres is completely removed in a connection region that extends for a predetermined length from the spliced end of the respective fibre in the longitudinal direction of the fibre and said connection is provided with a support sleeve, in which the spliced ends of the two fibres are located and which extends at least along the entire connection region of the first fibre and beyond, over the fibre cladding of the first fibre. The section of the support sleeve that extends over the fibre cladding of the first fibre does not rest against the fibre cladding of the first fibre and said sleeve is mechanically connected to the fibre core of the first fibre in the connection region of said first fibre, either directly or by means of an intermediate sleeve.

Abstract: Disclosed is a spliced joint between two fibers, in which at least one of the fibers includes a fiber core comprising at least one inner signaling core and a pumping core that surrounds the signaling core, and a fiber cladding which rests against the pumping core and is used for guiding light within the pumping core. The fiber cladding of the at least one fiber is removed at least in part in a radial direction in a connection zone extending from the spliced end of the fiber along a predetermined length in the longitudinal direction of the fiber. Furthermore, a supporting jacket may be provided, inside which the spliced ends of the two fibers are arranged and which extends along the entire connection zone and therebeyond. The supporting jacket may be mechanically connected to both fibers next to the connection zone while not being mechanically connected to and being at a distance from the respective fiber along the entire connection zone.