Nexans

Vegard B Larsen

Per Arne Osborg

Inge J Vintermyr

Tom Harald Birkeland

Tom Eirik Toften

An optical cable unit has a metal tube with a longitudinal laser-welded seam and at least one optical waveguide in the interior of the metal tube. The metal tube has a first inner layer and a second outer layer, where the first inner layer is made from copper and the second outer layer is made from austenitic steel. The longitudinal seam of both layers is laser welded and the seams of the layers are in superimposed alignment, where the laser welding is performed by a COlaser.

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Oslo, Norway

Vegard B Larsen