Vertical-cavity surface-emitting laser
Type of semiconductor laser diode
Vertical-cavity surface-emitting laser
The vertical-cavity surface-emitting laser (VCSEL ) is a type of semiconductor laser diode with laser beam emission perpendicular from the top surface, contrary to conventional edge-emitting semiconductor lasers (also called 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.
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