A VCSEL (Vertical-Cavity Surface-Emitting Laser) is a type of semiconductor laser diode that emits light perpendicular to the surface of the fabricated chip, unlike edge-emitting lasers. Known for their efficiency, reliability, and compact form factor, VCSELs are widely used in consumer electronics, automotive applications, data communication, and sensing technologies. https://www.marketresearchfuture.com/reports/vcsel-market-8672