Room-temperature Fe super(2+):ZnSsingle crystal laser pumped by an electric-discharge HF laser

A room-temperature laser based on a Fe super(2+): ZnSsingle crystal has been studied. The crystal was pumped by a nonchain electric-discharge HF laser with a light pulse FWHM of ~140 ns. The pump spot diameter on the crystal surface (d) varied from 3.9 to $11.6 mm. The slope efficiency at these valu...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2016-01, Vol.46 (9), p.769-769
Main Authors: Velikanov, S D, Dormidonov, A E, Zaretsky, N A, Kazantsev, S Yu, Kozlovsky, V I, Kononov, I G, Korostelin, Yu V, Maneshkin, A A, Podmar'kov, Yu P, Skasyrsky, Ya K, Firsov, K N, Frolov, M P, Yutkin, I M
Format: Article
Language:English
Subjects:
Channels
Crystal surfaces
Crystals
Energy management
Entrances
HF lasers
Lasers
Pumps
Online Access:Get full text
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Summary:A room-temperature laser based on a Fe super(2+): ZnSsingle crystal has been studied. The crystal was pumped by a nonchain electric-discharge HF laser with a light pulse FWHM of ~140 ns. The pump spot diameter on the crystal surface (d) varied from 3.9 to $11.6 mm. The slope efficiency at these values of d was 37% - 39 %, respectively. The maximum laser energy was 380 mJ (at d= 11.6 mm) with the total efficiency with respect to the absorbed pump energy of ~ 19%. A further increase in the laser energy was not achieved because the crystal was destroyed at an incident pump energy and power of $3.4 J and ~ 24 MW, respectively. The damaged region has a form of a long narrow channel shifted from the entrance surface inside the active element.
ISSN:1063-7818
1468-4799
DOI:10.1070/QEL16105