55 results about "Vertical-cavity surface-emitting laser" patented technology

The vertical-cavity surface-emitting laser, or VCSEL /ˈvɪksəl/, is a type of semiconductor laser diode with laser beam emission perpendicular from the top surface, contrary to conventional edge-emitting semiconductor lasers (also in-plane lasers) which emit from surfaces formed by cleaving the individual chip out of a wafer. VCSELs are used in various laser products, including computer mice, fiber optic communications, laser printers, Face ID, and smartglasses.