High-power/high-brightness diode-pumped 1.9-mum thulium and resonantly pumped 2.1-mum holmium lasers
We report high power ( > 36 W) with beam propagation factor M(2)~2 in a diode end-pumped Tm:LiYF(4) (Tm:YLF) laser generating output near the 1.91-mum region. Using the 1.91-mum emission and high brightness achieved with the Tm:YLF laser we resonantly end-pump the Holmium (5)I(7) manifold in Ho:Y...
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| Veröffentlicht in: | IEEE journal of selected topics in quantum electronics 2000-07, Vol.6 (4), p.629-635 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | We report high power ( > 36 W) with beam propagation factor M(2)~2 in a diode end-pumped Tm:LiYF(4) (Tm:YLF) laser generating output near the 1.91-mum region. Using the 1.91-mum emission and high brightness achieved with the Tm:YLF laser we resonantly end-pump the Holmium (5)I(7) manifold in Ho:YAG and demonstrate ~19 W of continuous-wave (CW) output. The diode-to-Holmium optical to-optical conversion efficiency achieved is ~18%. Using a CW pumped and repetitively Q-switched configuration, the Tm:YLF pumped Ho:YAG laser achieves > 16 W of output power with an M(2)~1.48 at 15 kHz. A Q-switched frequency range of 9 to > 50 kHz is also achieved. |
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| ISSN: | 1077-260X |
| DOI: | 10.1109/2944.883377 |