Vertical-cavity surface-emitting laser
Type of semiconductor laser diode / From Wikipedia, the free encyclopedia
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The vertical-cavity surface-emitting laser (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,[1] and smartglasses.[2]
This article may be too technical for most readers to understand. (February 2017) |