Increasing filling factor of laser diode array beam source, recombines incident beam field in stages, to produce parallel, more concentrated output beam

摘要

Fractions of the incident broad beam field (actually a bundle of beams) are re-combined by refraction in stages (3, 4, 5) along the z direction, into a narrower bundle. Exit bundles from each stage are parallel to one another. In each successive stage, the bundles are led together and recombined similarly, to leave as a parallel, more concentrated bundle of beams.