UV, Blue and Green Vertical Cavity Lasers

摘要

Vertical cavity surface ernitting lasers (VCSELs) have improved rapidly duringthe last few months. VCSELs have been demonstrated with wall plug efficiencies as high as 50%. All improvements such as these, contribute to the development of UV, blue and green VCSELs, since the basic infra-red VCSEL is fundamental to our doubling scheme. These new structures have larger optical field densities then any existing VCSELs, due to reduced mirror resistances and reduced optical losses.