5-W repetitively Q-switched Er:LuAG laser resonantly pumped by an erbium fiber laser |
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| Authors: | Setzler Scott D Snell Kevin J Pollak Thomas M Budni Peter A Young York E Chicklis E P |
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| Institution: | Information and Electronic Warfare, BAE Systems, Nashua, New Hampshire 03061, USA. scott.d.setzler@baesystems.com |
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| Abstract: | We report a high-average-power, near-diffraction-limited Er:LuAG laser generating 5 W of power at 1.648 microm in either cw or repetitively Q-switched operation. When the laser is Q switched at 9 kHz, we measure 0.52 mJ/pulse. The laser is end pumped by a 20-W erbium fiber laser and achieves >30% optical conversion efficiency and >40% incident slope efficiency. This is, to our knowledge, the highest performance (average power and conversion efficiency) obtained from a bulk solid-state erbium laser. |
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