Effect of matching of a power supply with a laser tube and of pumping conditions on the relaxation of metastable states and the frequency - energy parameters of a copper vapour laser

Journal Article · Wed Jul 31 04:00:00 EDT 2002 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2002V032N07ABEH002254· OSTI ID:21470209

Bokhan, P A; Zakrevskii, D E ^[1]

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1. Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)

The relation between the lasing efficiency of a copper vapour laser and relaxation of the metastable states is studied at high average pump powers. The prepulse concentration N{sub ms0} of metastable states in tubes of diameter 2 cm in lasers with a high efficiency (above 1%) is shown to be negligible up to linear output powers of {approx}50 W m{sup -1} and has no effect on the output power. At a lower lasing efficiency caused by the mismatch between a power supply and the laser tube, the population of metastable states strongly increases during afterglow and can become a main factor restricting the output power in a repetitively pulsed regime. As the neon pressure is increased or hydrogen is added, the matching is facilitated and the effect of N{sub ms0} on the lasing parameters of a high-power copper laser decreases. (lasers)

• OSTI ID: 21470209
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 7 Vol. 32; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
AFTERGLOW
COPPER
EFFICIENCY
ELECTRONIC EQUIPMENT
ELEMENTS
ENERGY LEVELS
EQUIPMENT
EXCITED STATES
FLUIDS
GAS LASERS
GASES
HYDROGEN
LASERS
METAL VAPOR LASERS
METALS
METASTABLE STATES
NEON
NONMETALS
POWER SUPPLIES
PUMPING
RARE GASES
RELAXATION
TRANSITION ELEMENTS