A sealed-off strontium vapor laser

Anatoly N. Soldatov; Alexander G. Filonov; Alexei S. Shumeiko; Anatoly E. Kirilov; Borislav L. Ivanov; Richard F. Haglund Jr.; Marcus H. Mendenhall; William E. Gabella; Ivan Z. Kostadinov

doi:10.1117/12.562984

3 May 2004 A sealed-off strontium vapor laser

Anatoly N. Soldatov, Alexander G. Filonov, Alexei S. Shumeiko, Anatoly E. Kirilov, Borislav L. Ivanov, Richard F. Haglund Jr., Marcus H. Mendenhall, William E. Gabella, Ivan Z. Kostadinov

Author Affiliations +

Proceedings Volume 5483, Atomic and Molecular Pulsed Lasers V; (2004) https://doi.org/10.1117/12.562984
Event: Atomic and Molecular Pulsed Lasers V, 2003, Tomsk, Russian Federation

Abstract

A sealed-off strontium-vapor laser for medical applications is examined. This is an integrated system that accommodates an excitation circuit, a laser cavity, and an active element. The active medium is excited by means of a modified Blumlein circuit. An unstable resonator of the telescopic type allows a near-diffraction-limited laser beam to be generated. Lasing is obtained in atomic strontium lines at λ=2.06, 2.2, 2.69, 2.92, 3.011, and 6.45 μm and in ionic strontium lines at λ=1.033 and 1.091 μm. We have studied experimentally the behavior of spectral distribution of the output power at varying power delivered to the discharge. It is found that 95% of laser radiation is concentrated in the line at λ=6.456 μm, which corresponds to a lasing power of ~ 2.5 W. Moreover, the time characteristics of lasing pulses are investigated. The radial inhomogeneity of the laser beam is examined. We have conducted lifetime testing of Sr-vapor active elements. The average output power exhibits a modest decrease (5%) within 300 h of a continuous operation. Notably, the pumping characteristics remain unchanged.

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Anatoly N. Soldatov, Alexander G. Filonov, Alexei S. Shumeiko, Anatoly E. Kirilov, Borislav L. Ivanov, Richard F. Haglund Jr., Marcus H. Mendenhall, William E. Gabella, and Ivan Z. Kostadinov "A sealed-off strontium vapor laser", Proc. SPIE 5483, Atomic and Molecular Pulsed Lasers V, (3 May 2004); https://doi.org/10.1117/12.562984

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