Influence of the active medium composition on the gain in the 0002–[1001, 0201]lband for a TEA CO2laser with ultraviolet preionization

Bertel, I. M.; Petukhov, V. O.; Trushin, Sergey; Churakov, V. V.

doi:10.1070/qe1982v012n07abeh005445

Sov. J. Quantum Electron.

1982

DOI: 10.1070/qe1982v012n07abeh005445

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Influence of the active medium composition on the gain in the 00⁰2–[10⁰1, 02⁰1]_lband for a TEA CO₂laser with ultraviolet preionization

I. M. Bertel¹,

V. O. Petukhov²,

Sergey Trushin³

et al.

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Cited by 7 publications

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Gain measurements of longitudinally excited CO2 laser using low-pressure gas without helium

Miyagawa,

Uno,

Watarai

et al. 2024

Appl. Phys. B

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The gain characteristics of a CO2 laser pumped by a longitudinal pulsed discharge were investigated to develop a compact He-free CO2 laser operating at a high repetition rate. The longitudinal discharge tube had an inner diameter of 0.8 cm and a length of 45 cm. High-voltage pulses with a discharge starting voltage of 13.4–30.2 kV at a rise time of about 321 ns were applied to the discharge tube. CO2/N2 mixture gas with mixing ratios of 1:0, 1:1, 1:2 and 1:3 was used. The small signal gain coefficient was measured by inputting a seed CO2 laser pulse into the longitudinal discharge tube. The small signal gain coefficient depended on the delay time between the start of the discharge in the longitudinal discharge tube and the input of a seed CO2 laser pulse, the gas mixing ratio, the gas pressure, the repetition rate and the input energy to the longitudinal discharge tube. In this work, in He-free gas, the maximum small signal gain coefficient at a repetition rate of 300 Hz was 2.11%/cm with a delay time of 30.4 μs, a CO2/N2 gas mixing ratio of 1:2, a gas pressure of 2.6 kPa and an input energy of 191 mJ.

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Gain measurements of longitudinally excited CO2 laser using low-pressure gas without helium

Miyagawa,

Uno,

Watarai

et al. 2024

Appl. Phys. B

View full text Add to dashboard Cite

show abstract

Investigation of the vibrational temperature kinetics in a TEA CO₂laser

Bertel¹,

Petukhov²,

Stepanov³

et al. 1982

Sov. J. Quantum Electron.

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Investigation of the influence of small amounts of tri-n-propylamine on the output characteristics of a TEA CO₂laser

Petukhov¹,

Churakov²

1984

Sov. J. Quantum Electron.

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We present the technique of laser Rayleigh scattering imaging (LRSI), which has been used for the mapping of inhomogeneities and point defects in sapphire test masses for laser interferometer gravitational wave detectors. We analyse the errors associated with side wall mapping of cylindrical test masses, and present the comparison of two samples which show significant differences. The technique could be used to improve quality control in the manufacture of optical materials.

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Influence of the active medium composition on the gain in the 00⁰2–[10⁰1, 02⁰1]_lband for a TEA CO₂laser with ultraviolet preionization

Cited by 7 publications

References 2 publications

Gain measurements of longitudinally excited CO2 laser using low-pressure gas without helium

Gain measurements of longitudinally excited CO2 laser using low-pressure gas without helium

Investigation of the vibrational temperature kinetics in a TEA CO₂laser

Investigation of the influence of small amounts of tri-n-propylamine on the output characteristics of a TEA CO₂laser

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Influence of the active medium composition on the gain in the 0002–[1001, 0201]lband for a TEA CO2laser with ultraviolet preionization

Cited by 7 publications

References 2 publications

Gain measurements of longitudinally excited CO2 laser using low-pressure gas without helium

Gain measurements of longitudinally excited CO2 laser using low-pressure gas without helium

Investigation of the vibrational temperature kinetics in a TEA CO2laser

Investigation of the influence of small amounts of tri-n-propylamine on the output characteristics of a TEA CO2laser

Contact Info

Product

Resources

About

Influence of the active medium composition on the gain in the 00⁰2–[10⁰1, 02⁰1]_lband for a TEA CO₂laser with ultraviolet preionization

Investigation of the vibrational temperature kinetics in a TEA CO₂laser

Investigation of the influence of small amounts of tri-n-propylamine on the output characteristics of a TEA CO₂laser