A high-voltage hollow-cathode Au-II 282-nm laser

Journal Article · Sun May 01 00:00:00 EDT 1994 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/3.303678· OSTI ID:7148845

Peard, K A; Tobin, R C ^[1]; Rozsa, K; Donko, Z ^[2]

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1. Monash Univ., Clayton, Victoria (Australia). Dept. of Physics
2. Central Research Inst. for Physics, Budapest (Hungary)

Laser operation on the Au-II 282.3-nm line is obtained from a high-voltage, segmented hollow-cathode discharge tube with external mirrors. Measurements of the laser output power and the small-signal gain demonstrate that, for a given total discharge current, the optimum performance of the laser is obtained for a discharge length for which the linear current density is approximately 65 mA cm[sup [minus]1]. The gain is approximately 25% m[sup [minus]1] at this current density and increases with current density up to the highest value used (250 mA cm[sup [minus]1]), at which the gain exceeds 50% m[sup [minus]1]. The threshold current decreases monotonically with decreasing length, the lowest observed value being 0.28 A for a length of 5 cm. A quasi-CW output power of 20 mW is obtained for a gain length of 20 cm and a discharge current of 3.2 A in a partially optimized tube with unoptimized output coupling.

• OSTI ID: 7148845
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Vol. 30:5; ISSN 0018-9197
• Country of Publication: United States
• Language: English

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426002* - Engineering- Lasers & Masers- (1990-)