Operation of a downstream-mixing CO2 gasdynamic laser utilizing high-temperature decomposed gas of liquid N2O
Abstract
The potential performance characteristics of a downstream-mixing CO2 gasdynamic laser equipped with a screen nozzle and a passive supersonic diffuser and utilizing high-temperature decomposed gas of liquid N2O as the donor gas are evaluated theoretically and experimentally. Under typical operating conditions, with a total mass flow rate of 2 kg/s, a small-signal gain coefficient of 0.5 pct/cm and a laser output power of 10 kW have been measured for a gas mixture of (mole fractions) 11.3 CO2, 65.1 N2, 0.3 H2O, and 23.3 O2.
- Publication:
-
Lasers 1987; Proceedings of the Tenth International Conference on Lasers and Applications
- Pub Date:
- 1988
- Bibcode:
- 1988laap.conf..518T
- Keywords:
-
- Carbon Dioxide Lasers;
- Gasdynamic Lasers;
- Nitrous Oxides;
- Thermal Decomposition;
- Combustion Chambers;
- High Temperature Gases;
- Laser Outputs;
- Mass Flow Rate;
- Mixing Length Flow Theory;
- Lasers and Masers