Pulsed He-Zn hollow cathode laser

Margarita St. Stefanova; Petko M. Pramatarov; A. A. Peeva

doi:10.1117/12.347607

7 May 1999 Pulsed He-Zn hollow cathode laser

Margarita St. Stefanova, Petko M. Pramatarov, A. A. Peeva

Proceedings Volume 3571, Tenth International School on Quantum Electronics: Laser Physics and Applications; (1999) https://doi.org/10.1117/12.347607
Event: 10th International School on Quantum Electronics: Lasers: Physics and Applications, 1998, Varna, Bulgaria

Abstract

Pulsed He-Zn hollow cathode laser is investigated. Simultaneous lasing on five visible Zn II (491.2 nm, 492.1 nm, 589.4 nm, 601.2 nm and 610.2 nm) and three infrared Zn II (747.9 nm, 758.8 nm and 775.8 nm) lines is obtained. Helical configuration of the cathode is used. The dependence of the laser output parameters on the excitation pulse: peak value, duration and repetition rate and He and Zn pressures is investigated. Optimal lasing is obtained at 6 - 9 A peak current, 5 - 8 Torr He pressure, 420 - 450 degree(s)C tube wall temperature and 13 microsecond(s) pulse duration. Stable operation and no change in the output power is observed by the variations of the excitation pulses repetition rate up to 1000 Hz. Laser gain values of more than 100%/m for the Zn II 758.8 nm line, 30%/m for the Zn II 492.4 nm line and 15%/m for the 491.2 nm line are achieved.

Citation Download Citation

Margarita St. Stefanova, Petko M. Pramatarov, and A. A. Peeva "Pulsed He-Zn hollow cathode laser", Proc. SPIE 3571, Tenth International School on Quantum Electronics: Laser Physics and Applications, (7 May 1999); https://doi.org/10.1117/12.347607

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