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This article is cited in 35 scientific papers (total in 35 papers)
Lasers
Scaling of energy characteristics of polycrystalline Fe$^{2+}$:ZnSe laser at room temperature
E. M. Gavrishchukab, V. B. Ikonnikova, S. Yu. Kazantsevc, I. G. Kononovc, S. A. Rodina, D. V. Savina, N. A. Timofeevaa, K. N. Firsovcd a Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod
b Lobachevski State University of Nizhni Novgorod
c A.M. Prokhorov General Physics Institute Russian Academy of Sciences, Moscow
d Moscow Engineering Physics Institute (National Nuclear Research University)
Abstract:
The lasing characteristics of lasers based on diffusiondoped Fe$^{2+}$:ZnSe polycrystalline samples excited at room temperature by an electric-discharge HF laser are studied. A sample doped from two sides (working surfaces) emitted laser radiation with the energy $E=253$ mJ with the slope efficiency $\eta_d=33$ % and the efficiency with respect to the absorbed energy $\eta_{abs}\approx28$ % in the case of an elliptical pump spot of size $a\times b=6.8\times7.5$ mm. It is found that the possibility of increasing the lasing energy of the samples of these types by increasing the pump spot area (at a constant pump energy density) is limited by the appearance of parasitic generation typical for disk lasers. The first results are reported on the laser based on a polycrystalline sample made by a technology that allows one to form a zero dopant concentration on the surface and a maximum concentration inside the sample (i.e., to create a sample with internal doping). The possibilities of increasing the Fe$^{2+}$:ZnSe laser energy at room temperature by using multilayer samples fabricated by this doping method are discussed.
Keywords:
Fe$^{2+}$:ZnSe laser, non-chain electric-discharge HF laser, optical pumping, diffusion doping, CVD method, barothermic treatment.
Received: 27.04.2015 Revised: 10.06.2015
Citation:
E. M. Gavrishchuk, V. B. Ikonnikov, S. Yu. Kazantsev, I. G. Kononov, S. A. Rodin, D. V. Savin, N. A. Timofeeva, K. N. Firsov, “Scaling of energy characteristics of polycrystalline Fe$^{2+}$:ZnSe laser at room temperature”, Kvantovaya Elektronika, 45:9 (2015), 823–827 [Quantum Electron., 45:9 (2015), 823–827]
Linking options:
https://www.mathnet.ru/eng/qe16243 https://www.mathnet.ru/eng/qe/v45/i9/p823
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