High repetition rate pin-array UV pre-ionized CO<sub>2</sub> laser

K. Silakhori; F. Soltanmoradi; S. A. Naeimi; M. R. Sadr; M. Zand

doi:10.1117/12.677393

31 May 2006 High repetition rate pin-array UV pre-ionized CO₂ laser

K. Silakhori, F. Soltanmoradi, S. A. Naeimi, M. R. Sadr, M. Zand

Proceedings Volume 6263, Atomic and Molecular Pulsed Lasers VI; 626309 (2006) https://doi.org/10.1117/12.677393
Event: Atomic and Molecular Pulsed Lasers VI, 2005, Tomsk, Russian Federation

Abstract

Design, construction and operation of a high repetition rate TEA CO₂ laser is reported. Cooling and gas circulation systems of this small laser consist of a radiator based cooling with capacity of 300 cm³ and two 2700 rpm blowers, respectively. Cold water (-3°C) with 100 cm³/s was supplied and used for cooling. The gas circulation velocity between the electrodes was 6 m/sec. Energy of 65-25 mJ per pulse was recorded for repetition rate of 500 Hz and 1 KHz, respectively. It is shown that the output energy of this small scale pin array UV pre-ionized laser very much depends on discharge voltage and Nitrogen gas ratio in the laser gas mixture. For mixture of C0₂: N₂: He≡1:1:4 and the discharge voltage of 16 KV, pulse energies varies from 65-30 mJ, at 100 Hz and 1 KHz repetition rates. At repetition rate more than 2 KHz pulse energy reduces to less than half of the maximum energy. The FWHM of 100 ns was recorded.

Citation Download Citation

K. Silakhori, F. Soltanmoradi, S. A. Naeimi, M. R. Sadr, and M. Zand "High repetition rate pin-array UV pre-ionized CO₂ laser", Proc. SPIE 6263, Atomic and Molecular Pulsed Lasers VI, 626309 (31 May 2006); https://doi.org/10.1117/12.677393

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