Dependence of gain and laser power for Cu-II 780.8-nm transition on the diameter of a segmented hollow cathode discharge

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · IEEE Journal of Quantum Electronics

DOI:https://doi.org/10.1109/3.400410· OSTI ID:137082

Szalai, L ^[1]; Donko, Z; Rozsa, K ^[2]; Tobin, R C ^[3]

---

1. Jozsef Attila Univ., Szeged (Hungary)
2. Research Inst. for Solid State Physics, Budapest (Hungary)
3. Monash Univ., Clayton, Victoria (Australia). Dept. of Physics

The dependence of laser performance and discharge characteristics on the diameter of a segmented hollow cathode discharge for the Cu-II 780.8 nm transition is presented. This transition has a special importance since its upper level is common to potential CW VUV laser transitions (150--170 nm). Laser tubes with internal diameters of 2, 3, 4, and 5 mm were investigated. Decreasing the diameter resulted in an increased gain for a given current (up to 100%/m in the 2-mm diameter, 5-cm-long tube at 1-A current). The highest output power was obtained from the large-diameter tubes (20 mW from a 5-cm-long, 5-mm-diameter tube at 2-A current, without optimizing the output coupler). This work is a part of a series of investigations aimed at the optimization of the segmented hollow cathode discharge which has already been found to be the most efficient type of discharge for cathode sputtered metal ion lasers.

• OSTI ID: 137082
• Journal Information: IEEE Journal of Quantum Electronics, Journal Name: IEEE Journal of Quantum Electronics Journal Issue: 8 Vol. 31; ISSN 0018-9197; ISSN IEJQA7
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ELECTRIC DISCHARGES
ELECTRICAL PUMPING
ENERGY-LEVEL TRANSITIONS
FAR ULTRAVIOLET RADIATION
METAL VAPOR LASERS
PERFORMANCE