Crystals and mirrors laser systems, other questions of quantum electronics

Use of a T-shaped resonator and a stimulated Brillouin scattering mirror to improve the directionality of laser radiation

A. A. Denisov, O. L. Kulikov


Abstract: An experimental investigation was made of a YAG:Nd laser with a four-mirror resonator and an external stimulated Brillouin scattering (STBS) mirror. Under conditions of passive Q switching we studied the radiation characteristics as a function of the parameters of a three-mirror interferometer–reflector and the rate of pumping of the active element. It was found that the highest radiation brightness was achieved for an unstable interferometer–reflector. The laser pulse energy increased when the radiation reflected from the STBS mirror was in resonance with the longitudinal modes of the interferometer–reflector.

UDC: 621.373.826

PACS: 42.65.Es, 42.55.Rz, 42.60.Da, 42.79.Bh, 42.60.Jf, 07.60.Ly

Received: 18.05.1990

 English version: Soviet Journal of Quantum Electronics, 1990, 20:12, 1530–1532

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