Journal
QUANTUM ELECTRONICS
Volume 46, Issue 3, Pages 210-212Publisher
TURPION LTD
DOI: 10.1070/QEL15990
Keywords
pulsed cylindrical induction discharge; HF laser; emission spectrum; laser operation stability; ring profile of the beam cross section
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We report the results of experimentally investigated dependences of temporal, spectral and spatial characteristics of an inductive HF-laser generation on the pump conditions. Gas mixtures H-2-F-2(NF3 or SF6) and He(Ne) - H-2-F-2(NF3 or SF6) were used as active media. The FWHM pulse duration reached 0.42 mu s. This value corresponded to a pulsed power of 45 kW. For the first time, the emission spectrum of an inductive HF laser was investigated, which consisted of seven groups of bands with centres around the wavelengths of 2732, 2736, 2739, 2835, 2837, 2893 and 2913 nm. The cross section profile of the laser beam was a ring with a diameter of about 20 mm and width of about 5 mm. Parameters of laser operation in the repetitively pulsed regime were sufficiently stable. The amplitude instability of light pulses was no greater than 5 % - 6 %.
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