10 February 2011 High-power double-clad Er-doped fiber laser
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Abstract
In this paper, we propose a novel all-fiber laser scheme with the output wavelength of 1565 nm based on a new Er-doped fiber design. A conventional commercially available pump source at 980nm (D=105μm, NA=0.2) is used for pumping. A high slope efficiency of 28% comparable with those in Er-Yb lasers was achieved owing to the utilization of the novel P2O5-Al2O3-SiO2 (PAS) glass as the host for Er3+ ions. A relatively low in-cavity fiber length (~14m) becomes possible owing to a small outer fiber diameter (80μm) and the use of a fiber taper (105μm to 80μm) for launching the pump.
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Mikhail E. Likhachev, Mikhail E. Likhachev, Leonid V. Kotov, Leonid V. Kotov, Mikhail M. Bubnov, Mikhail M. Bubnov, Oleg I. Medvedkov, Oleg I. Medvedkov, Alexej A. Sysolyatin, Alexej A. Sysolyatin, Denis S. Lipatov, Denis S. Lipatov, Aleksey N. Guryanov, Aleksey N. Guryanov, "High-power double-clad Er-doped fiber laser", Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 791424 (10 February 2011); doi: 10.1117/12.873740; https://doi.org/10.1117/12.873740
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