Determination of the concentrations of oxygen and water vapour, and of the temperature of the active medium in a chemical oxygen—iodine laser by intracavity laser spectroscopy
Abstract:
Intracavity spectroscopy, with the aid of a Al2O3:Ti3+ laser, was used to determine the concentrations of H2O and O2 and the temperature of the active medium of an oxygen–iodine laser. When duration of the Al2O3:Ti3+ laser pulses was 120 μs, the sensitivity of the method was 6×1014 and 3 × 1014 cm–3 for H2O and O2, respectively. The error in the determination of the oxygen concentration in the range 2 × 1015 – 1016 cm–3 did not exceed 5% at temperatures 200 – 500 K and the temperature error did not exceed 25 K.
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