Broadly tunable compact continuous-wave Cr^2+:ZnS laser

Irina T. Sorokina, Evgeni Sorokin, Sergey Mirov, Vladimir Fedorov, Valery Badikov, Vladimir Panyutin, Kathleen I. Schaffers
2002 Optics Letters  
We report the development of a continuous-wave, room-temperature Cr 21 :ZnS laser that is compact and tunable over 700 nm. The laser is pumped by a diode-pumped Er-fiber laser and generates 0.7 W of linearly polarized radiation at 2.35 mm, at up to 40% slope efficiency. Cr 21 :ZnS directly diode-pumped at 1.6 mm yields polarized radiation that is tunable over 400 nm at up to 25 mW of output power. A comparison of Cr 21 :ZnS with Cr:ZnSe (70 mW, 350 nm) in a similar setup is given. As opposed to
more » ... iven. As opposed to Cr:ZnSe, the Cr:ZnS laser is intrinsically polarized. Finally, we observe sensitization of the output radiation by a few milliwatts of the visible (470 -500-nm) and near-infrared (740 -770-nm) radiation.
doi:10.1364/ol.27.001040 pmid:18026358 fatcat:7tvutfbjovfmfm76ycakeknrty