Single-frequency, Yb-free, resonantly cladding-pumped large mode area Er fiber amplifier for power scaling
Mark Dubinskii, Jun Zhang, and Igor Kudryashov
We report results for a single-frequency (SF) resonantly cladding-pumped Yb-free large mode area (LMA) erbium-doped fiber amplifier (EDFA) with nearly 50% slope efficiency based on a commercial 20/125 [mu]m Er-doped double-clad LMA fiber with a core numerical aperture of 0.07. We believe that this ... [Appl. Phys. Lett. 93, 031111 (2008)] published Fri Jul 25, 2008.
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We report results for a single-frequency (SF) resonantly cladding-pumped Yb-free large mode area (LMA) erbium-doped fiber amplifier (EDFA) with nearly 50% slope efficiency based on a commercial 20/125 [mu]m Er-doped double-clad LMA fiber with a core numerical aperture of 0.07. We believe that this ... [Appl. Phys. Lett. 93, 031111 (2008)] published Fri Jul 25, 2008.
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