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Low-Powered VCSELs Find a Wide Variety of Uses

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With adoption into smartphone technology and lidar, VCSELs — developed in the 1980s — are being tapped for new applications.

FAROOQ AHMED, CONTRIBUTING EDITOR

By the end of 2018, nearly 1 million sq ft of new production space will have opened in the previous two years — space dedicated to making some of the world’s smallest and least power-hungry lasers. Known as vertical-cavity surface-emitting lasers, or VCSELs, these miniature devices have found use in 3D sensing, lidar, automated driving and manufacturing, high-speed data communication, laser printers, optical mice, and smartphones. A VCSEL wafer in production. Sunnyvale, Calif.-based Finisar recently completed a 700,000-sq-ft facility in Sherman, Texas, to produce the...Read full article

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