A study of a double-pass CO2 amplifier for operation with a wavefront-reversing mirror
Abstract
It is shown experimentally that the amplifying properties of the active medium of 1-microsecond photoionization CO2 lasers can be estimated by using steady-state approximation formulas. The gain factor and the saturation parameters, averaged over the pulse duration, are determined for a series of lines of the P branch of CO2, including 10P(8) and 10P(10) lines. These two lines are the lines at which maximum reflection coefficient of the wavefront-reversing mirror is achieved on the basis of four-wave interaction in SF6. A double-pass CO2 amplifier designed for operation with a wavefront-reversing mirror and providing a gain factor of about 10,000 with an output power energy of 60 J is investigated.
- Publication:
-
Kvantovaia Elektronika Moscow
- Pub Date:
- October 1984
- Bibcode:
- 1984KvanE..11.2110G
- Keywords:
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- Carbon Dioxide Lasers;
- Laser Outputs;
- Light Amplifiers;
- Approximation;
- Gas Mixtures;
- Line Spectra;
- Mirrors;
- Power Gain;
- Wave Interaction;
- Lasers and Masers