Abstract
Phase conjugation via stimulated Brillouin scattering is a simple method for dynamically correcting the aberrations in laser amplifying media and represents a powerful technique for scaling the brightness of such devices. The match between SBS and solid state lasers is a particularly ideal one because Q-switching provides the high peak powers (typically > MW) needed to exceed SBS threshold, and unlike gaseous or liquid media, other options for cleaning aberrations such as flowing the medium are not available in solid state media. As a result, the highest brightness solid state lasers demonstrated to date have been ones using SBS phase conjugation.1–3 SBS can also be used to coherently combine multiple apertures in parallel,4 further enhancing its utility as a method for scaling energy/power.
© 1994 Optical Society of America
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