Vertical Lasers May Be Ready To Stand And Deliver
Compact-disk players, laser printers, and fiber-optic telephone networks depend on tiny lasers made from semiconductor chips. But such lasers have an expensive quirk: The light they produce shines out of the sides of the chips, and that makes manufacturing them costly. Semiconductor wafers containing hundreds of lasers must first be cut into individual chips. Then each laser--the size of a grain of salt--must be tested and mounted in a product or fiber-optic connector.
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