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A 43-W C-band tunable narrow-linewidth erbium-ytterbium codoped large-core fiber laser

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8 Author(s)
Yoonchan Jeong ; Optoelectronics Res. Centre, Univ. of Southampton, UK ; Alegria, C. ; Sahu, J.K. ; Fu, L.
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The authors report a widely tunable and highly efficient cladding-pumped erbium-ytterbium codoped large-core fiber laser, generating up to 43 W of output power at /spl sim/1.5 μm with a narrow linewidth (0.16-nm full-width at half-maximum) and a good beam quality (M2<1.7). By use of a tunable narrow-band fiber Bragg grating, the laser wavelength was tuned from 1532 to 1567 nm, limited upwards by the tuning range of the fiber grating. The overall slope efficiency was 32% with respect to launched pump power.

Published in:

Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 3 )