Doppelkern-Faserlaser

摘要

The invention relates to a double-cored optical fibre consisting of a pumping core (22), a laser core (24) arranged centrally therein and a sheath (26) surround the pumping core (22). The essentially circular pump core (22) has a ground section (28) on the outside running in the light direction of the double-cored optical fibre (20) and occupying 1 to 49 % of the diameter of said pump core (22). The invention also relates to a process for producing the double-cored fibre laser and a double-cored fibre amplifier making use of the double-cored optical fibre of the invention. The essentially circular pump core (22) with its centrally fitted laser core (24) facilitates connection ot other light guide components and the easy injection of the pump light.