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by aftbit 242 days ago
The iPhone changed the world through sheer scale. This even trickled back upstream to its components.

For example, VECSEL lasers were added to the iPhone in 2017 to power FaceID. At the time, they were a low volume, high cost component (used primarily in fiber transceivers) with generally poor yields.

Today, thanks in large part to the sheer number demanded by iPhones, they are a cheap, near commodity component with >90% yields.

https://www.electrooptics.com/article/vcsels-deliver-mega-im...