The Vertical Cavity Surface-Emitting Laser

The VerticalCavity Surface-Emitting Laser (VCSEL) is the key semiconductor laser technology　used to make the displays of smart glasses and other wearable devices more compact and　less power consuming. Sony is at the cutting edge of the world in the development of blue　and green VCSELs with emission in the visible light range, a technological breakthrough that has never been achieved before.