The laser system ''oscillator-amplifier'1' was developed to provide the high spectral brightness (linewidth < 0.02 cm ) and diffraction limited divergence of radiation. Spectral narrowing was achieved by the use of dispersive intracavity elements. The oscillator radiation was amplified by double pass amplifier with phase conjugate SBS mirror. Oscillator and amplifier were separated with etalon, tuned on Brillouin shifted wavelength reflection. As a Brillouin scattering medium both liquid n-hexane and quartz-polymer fiber were utilized. In contrast with n-hexane the use of fiber decreased the SBS threshold more than two order of magnitude.

Date Published: 1 August 1990
PDF: 4 pages
Proc. SPIE 1278, Excimer Lasers and Applications II, (1 August 1990); doi: 10.1117/12.144998

Published in SPIE Proceedings Vol. 1278:
Excimer Lasers and Applications II
Tommaso Letardi, Editor(s)