We report room-temperature operation of an all solid-state, continuous-wave Cr2+:ZnSe laser. The laser was pumped by a Tm:YALO laser operating at 1940 nm. Demonstrated Cr:ZnSe laser results include: output power of 380 mW, an absorbed power slope efficiency of 63%, an absorbed power threshold as low as 98 mW, and continuous tunability from 2138 to 2760 nm. All Cr:ZnSe laser crystals were prepared by the diffusion doping technique.
(140.3460) Lasers and laser optics : Lasers
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3600) Lasers and laser optics : Lasers, tunable
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(160.3380) Materials : Laser materials
G. J. Wagner, T. J. Carrig, R. H. Jarman, R. H. Page, K. I. Schaffers, J. Ndap, X. Ma, and A. Burger, " High-Efficiency, Broadly Tunable Continuous-Wave Cr2+:ZnSe laser," in Advanced Solid State Lasers, M. Fejer, H. Injeyan, and U. Keller, eds., Vol. 26 of OSA Trends in Optics and Photonics (Optical Society of America, 1999), paper WD2.
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