Highly efficient side-fused signal pump combiners based on CO2-laser restructured optical fibers
10th EPS-QEOD Europhoton Conference
28. August - 02. September
We present the manufacturing of side-fused signal-pump combiners with 25/400-µm signal feed-through fibers and >90\% pump coupling efficiency. On the basis of CO2-laser restructuring of the used optical fibers, the necessity of splice connection is avoided, which improves the pump coupling efficiency and thus overall laser efficiency.