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Tunable narrow-linewidth operation of an Yb-doped fiber amplified-spontaneous-emission (ASE) source is reported. The source yielded 135 mW output at 1040 nm and could be tuned from 1034 nm to 1084 nm. The prospects for improvement in performance are considered.
Modal interference in few-moded large-core fiber amplifiers can yield output beams with good beam quality (M2∼1.2 – 1.4) giving the impression of single-mode operation despite significant higher-order mode content. The implications for high-power devices are discussed.
We report high-power operation of double-clad Yb-doped and Er,Yb-doped fiber lasers at 1066nm and 1553nm respectively using volume Bragg gratings for wavelength selection. Both lasers yielded output powers over 100W limited by available pump power.
We report high-power operation of double-clad Yb-doped and Er,Yb-doped fiber lasers at 1066 nm and 1553 nm respectively using volume Bragg gratings for wavelength selection. Both lasers yielded output powers over 100 W limited by available pump power.
Modal interference in few-moded large-core fiber amplifiers can yield output beams with good beam quality (M2~1.2 - 1.4) giving the impression of single-mode operation despite significant higher-order mode content. The implications for high-power devices are discussed.
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