Abstract
A pulsed tunable laser source of ultraviolet radiation with a linewidth of <400 MHz, a pulse duration of 9 ns, and a pulse repetition rate of 11 kHz pumped by a copper-vapor laser has been developed. Its average output power at a wavelength of 276 nm is 1.5 W. A system intended for laser isotope separation contains a master oscillator based on a dye laser, two amplifying stages with an average output radiation power of 4.5 W at a wavelength of 553 nm, and a radiation-frequency doubler on a BBO crystal. The master-oscillator laser is built according to a scheme with a diffraction grating positioned at an angle close to the glancing angle, a prism beam expander, and an air-filled hermetically sealed Fabry-Perot etalon. The long-term frequency stability of the output radiation is 10 MHz/h.
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Original Russian Text © P.A. Bokhan, Dm.E. Zakrevsky, V.A. Kim, S.A. Kochubei, N.V. Fateev, 2008, published in Pribory i Tekhnika Eksperimenta, 2008, No. 4, pp. 103–107.
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Bokhan, P.A., Zakrevsky, D.E., Kim, V.A. et al. A narrow-band source of ultraviolet radiation for laser isotope separation. Instrum Exp Tech 51, 583–587 (2008). https://doi.org/10.1134/S0020441208040143
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DOI: https://doi.org/10.1134/S0020441208040143