Topic: Advanced Solid-State LasersBased on Cr2+-Doped Chalcogenide Crystals Operating at SpectralRange of 2.3-3.1 Microns
Speaker: Prof.Oleg Antipov
Event date: 5/6/2019
Event time: 14:30 p.m.
Venue: Lecture Hall, Fourth Floor, Building 9
Sponsor: School of Physics and Electronic Engineering, Institute of Science and Technology
Abstract:
The presentation is devoted to overview of study ofsolid-state lasers based on single-crystalline or polycrystalline chalcogenidesZnSe and CdSe doped by Cr2+ ions. Gain switched laser operation atwavelengths of 2.3-3 μm under 2-μm laser pumping was studied.
Efficient gain-switched laser operation at 2.3-2.7 µmwas achieved in polycrystalline Cr2+:ZnSe slabs (with rectangular orzig-zag optical-path configurations) pumped at 2.1 µm by the pulsed Ho3+:YAGlaser. Laser oscillator based on Cr2+:CdSe single crystal pumped byradiation of Tm3+:Lu2O3-ceramic laser wascreated and investigated. Repetitively-pulsed oscillations at the wavelength of2.92 μm with bandwidth of 80 nm were demonstrated.Efficientgain-switched Cr2+:CdSe single-crystal laser operating around 3 µmand pumped by a 2.09-µm repetitively-pulsed Ho3+:YAG laser wascreated.
Brief introduction of the speaker:
Prof. Oleg Antipov is the leadingscientist in the Institute of Applied Physics of the Russian Academy ofSciences. His research interests include nonlinear optics and laser physics.The main accomplishments include: (1) Development of high-power solid-statelasers with a self-adapting cavity completed by dynamic refractive indexgratings. (2) Development of high-power and high-efficiency compact solid-statelasers and nonlinear parametric systems in the mid-infrared spectral region.(3) Development of the all-fiber coherent combining method using dynamicrefractive index control in active fiber. (4) Development of hybrid fiber-bulklaser systems in near-infrared and mid-infrared spectral regions for medicalapplications.