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A high-brightness laser beam from a phase-locked multicore Yb-doped fiber laser array

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3 Author(s)
Cheo, P.K. ; PC Photonics Corp., Waterford, CT, USA ; Liu, A. ; King, G.G.

We observed a high-brightness laser beam emitted from a closely packed array of seven Yb-doped single-mode fiber lasers embedded in a common cladding. The measured slope efficiency, greater than 65%, was achieved by clad-pumping from one end of the fiber. A theoretical model is established to provide a physical interpretation of the measured far field radiation patterns.

Published in:

Photonics Technology Letters, IEEE  (Volume:13 ,  Issue: 5 )