Efficient tunable laser operation of Tm:KGd(WO4)2 in the continuous-wave regime at room temperature

Tm:KGd(WO/sub 4/)/sub 2/ is studied as a three-level laser on the /sup 3/F/sub 4/ /spl rarr/ /sup 3/H/sub 6/ transition and a tunable source in the 2-/spl mu/m spectral range, operating at room temperature. An overall tunability extending from 1790 to 2042 nm is achieved with maximum output powers o...

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Veröffentlicht in:	IEEE journal of quantum electronics 2004-09, Vol.40 (9), p.1244-1251
Hauptverfasser:	PETROV, Valentin, GÜELL, Frank, MASSONS, Jaume, GAVALDA, Josefina, SOLE, Rosa Maria, AGUILO, Magdalena, DIAZ, Francesc, GRIEBNER, Uwe
Format:	Artikel
Sprache:	eng
Schlagworte:	Doped-insulator lasers and other solid state lasers Exact sciences and technology Fundamental areas of phenomenology (including applications) Gadolinium compounds Laser materials Laser optical systems: design and operation Laser transitions Laser tuning Lasers Làsers Modulation, tuning, and mode locking Optical materials Optical pumping Optics Physics Potassium compounds Solid lasers Thulium
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Beschreibung
Zusammenfassung:	Tm:KGd(WO/sub 4/)/sub 2/ is studied as a three-level laser on the /sup 3/F/sub 4/ /spl rarr/ /sup 3/H/sub 6/ transition and a tunable source in the 2-/spl mu/m spectral range, operating at room temperature. An overall tunability extending from 1790 to 2042 nm is achieved with maximum output powers of 400 mW for an absorbed pump power of 1 W. Various doping levels, pump wavelengths and polarization configurations are compared and the advantages of the monoclinic double tungstates over other Tm-hosts are outlined.
ISSN:	0018-9197 1558-1713
DOI:	10.1109/JQE.2004.833193