The study of phase conjugation in a laser phosphate-glass amplifier with an output aperture of 12 cm
Abstract
Phase-conjugation is studied in a multistage neodymium-glass amplifier with a small-signal gain of 10,000 and an output energy approaching 450 J at a pulse duration of 30 ns. A phase-conjugated mirror operating according to an 'SBS-oscillator-amplifier' scheme under conditions of high radiation energies (up to 4 J) is presented. The use of this type of mirror ensured a high phase-conjugated beam quality as well as the efficient utilization of the energy stored in the neodymium amplifier. The phase-conjugated radiation brightness, averaged over the diffraction angle, exceeded 2 x 10 to the 17th W/sq cm sr.
- Publication:
-
Kvantovaia Elektronika Moscow
- Pub Date:
- April 1987
- Bibcode:
- 1987KvanE..14..722A
- Keywords:
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- Glass Lasers;
- Light Amplifiers;
- Neodymium Lasers;
- Phase Conjugation;
- Wave Front Reconstruction;
- Brillouin Effect;
- Mirrors;
- Phosphates;
- Pulse Duration;
- Lasers and Masers