METHOD FOR IMPROVEMENT OF THE BEAM QUALITY OF THE LASER LIGHT GENERATED BY SYSTEMS OF COHERENTLY COUPLED SEMICONDUCTOR DIODE LIGHT SOURCES

摘要

A semiconductor optoelectronic system contains a primary semiconductor optoelectronic system, a first wavefront, a set of diffracting elements, and a second wavefront. The primary semiconductor electronic system is a single laser of a set of gain chips, bars, or stacks coherently coupled in an external resonator, the system is capable to generate a single vertical mode single lateral mode laser light. The near field on the first wavefront in the immediate vicinity of the system contains illuminated spots and dark spots, the latter dominate. The set of diffracting element transforms the near field of the laser light, and, hence, also the far field pattern, providing a significantly smaller beam divergence and, respectively, a higher brightness.