High-power and wavelength-tunable operation of an Er,Yb fiber laser using a volume Bragg grating |
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Authors: | Kim J W Jelger P Sahu J K Laurell F Clarkson W A |
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Affiliation: | Optoelectronics Research Centre, University of Southampton, Southampton, UK. jwk@orc.soton.ac.uk |
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Abstract: | Efficient high-power operation of double-clad Er,Yb-doped fiber lasers with fixed-wavelength and wavelength-tunable resonator configurations using volume Bragg gratings for wavelength selection are reported. The fixed-wavelength laser yielded a maximum output power of 103 W at 1552.6 nm with a linewidth of ~0.4 nm (FWHM) for a launched pump power of 290 W at 976 nm. The wavelength-tunable laser could be tuned from 1528 to 1550 nm with a linewidth of 0.2 nm (FWHM) and with output power in the range 30-38 W for a launched pump power of 120 W. The prospects for further improvement in performance are considered. |
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