Parameters of a trigatron-driven low-pulse-repetition-rate TEA CO{sub 2} laser preionised by a surface corona discharge

Journal Article · Wed Jan 31 04:00:00 EST 2007 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2007V037N01ABEH013351· OSTI ID:21466603

Aram, M; Shabanzadeh, M; Mansori, F ^[1]; Behjat, A ^[2]

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1. Laser Research Center, Tehran (Iran, Islamic Republic of)
2. Physics Department, Yazd University, Yazd (Iran, Islamic Republic of)

The design of a TEA CO{sub 2} laser with UV preionisation by a surface corona discharge is described and the dependences of its average output energy on the gas-flow rate, discharge voltage and pulse repetition rate are presented. The scheme of the electric circuit and the geometry of the pre-ionisation system are considered. The electric circuit is designed to produce only impulse voltage difference between the laser electrodes. The triggering system of the trigatron is used to prevent the appearance of the arc. The dependences of the current, voltage and average output energy on the gas-mixture composition and applied voltages at a low pulse repetition rate are presented. The central output wavelength of the laser was measured with an IR spectrometer. Lasing at two adjacent vibrational-rotational transitions of the CO{sub 2} molecule was observed, which demonstrates the possibility of simultaneous lasing at several lines. (lasers)

• OSTI ID: 21466603
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 1 Vol. 37; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON DIOXIDE LASERS
CORONA DISCHARGES
CURRENTS
DESIGN
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
ELECTRODES
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
EXCITED STATES
FLUID FLOW
GAS FLOW
GAS LASERS
GEOMETRY
INFRARED SPECTROMETERS
IONIZATION
LASERS
MATHEMATICS
MEASURING INSTRUMENTS
MOLECULES
PULSES
RADIATIONS
SPECTROMETERS
SURFACES
ULTRAVIOLET RADIATION
WAVELENGTHS