title: 10-watt, pure continuous-wave, polycrystalline Cr2+:ZnS laser.
abstract: We demonstrate, for the first time, 10 W, Er-fiber laser pumped, pure CW, thermally diffusion doped, polycrystalline Cr(2+):ZnS laser operating at 2380 nm. We also show Littrow-grating, "single-knob", wavelength tuning of the laser spanning 1940-2780 nm spectral range with the maximum output power of 7.4 W near the central wavelength of 2400 nm and above 2 W over 1970-2760 nm wavelength range. The laser performs with 40% real optical- and 43% slope efficiency, and shows no output power roll-off up to the highest available incident pump power of 27 W.
authors.affiliation: Department of Physics, Univ. of Alabama at Birmingham, 310 Campbell Hall, 1300 University Blvd., Birmingham, AL 35294, USA.
authors.forename: I S
authors.initials: IS
authors.lastname: Moskalev
authors.forename: V V
authors.initials: VV
authors.lastname: Fedorov
authors.forename: S B
authors.initials: SB
authors.lastname: Mirov
mesh_terms: D002857:Chromium; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013440:Sulfides; D017967:Zinc Compounds
chemical_list: D013440:Sulfides; D017967:Zinc Compounds; D002857:Chromium; C031238:zinc sulfide