3 J pulsed Fe:ZnS laser tunable from 3.44 to 4.19 μm. (25th March 2015)

• Record Type: Journal Article
• Authors: Frolov, M P; Korostelin, Yu V; Kozlovsky, V I; Podmar'kov, Yu P; Savinova, S A; Skasyrsky, Ya K
• Is Part Of: Laser physics letters. Volume 12:Number 5(2015:May)
• Publication Date: 2015-03-25
• Subjects: solid-state laser -- II-VI compound -- transition metal doping -- tunable laser -- mid infrared range; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-2011/12/5/055001
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: We report the laser properties of Fe:ZnS in the temperature range from 85 to 186 K. Under pumping by a pulsed free-running 2.94 μ m Er:YAG laser, a maximum output energy of 3.25 J at 85 K was produced with 27% optical-to-optical efficiency. The output wavelength was observed to tune with temperatures from 3.60 μ m at 85 K to 3.78 μ m at 186 K. As the temperature was increased, the absorbed energy slope efficiency decreased from 42.4% at 85 K down to 2.5% at 183 K. With a CaF2 prism, the Fe:ZnS laser could be tuned from 3.44 to 4.19 μ m at 85 K.