Efficient tunable laser operation of Tm:KGd(WO/sub 4/)/sub 2/ in the continuous-wave regime at room temperature |
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| Authors: | Petrov V Guell F Massons J Gavalda J Sole RM Aguilo M Diaz F Griebner U |
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| Affiliation: | Max-Born-Inst. for Nonlinear Opt. & Ultrafast Spectrosc., Berlin, Germany; |
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| Abstract: | 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. |
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