VCSEL

VCSEL is an acronym for Vertical Cavity Surface Emitting Laser, which is a vertical cavity surface emitting laser based on semiconductor materials such as gallium arsenide, which is different from other light sources such as LED and LD. Different from the traditional EEL (Edge Emitter Laser), the VCSEL emits a high-power optical laser beam vertically from the top surface. It has the advantages of high quality beam, symmetrical spot, small temperature drift and high frequency, and the surface light source is easy to array .