A Free-Space Optical Detector (IMAGE)

Optica

A Free-Space Optical Detector

Caption

Researchers developed a new way to capture and concentrate light for free-space optical communication. The fluorescent optical fibers absorb blue light coming from any direction over a large area and emit green light that travels inside the optical fiber until it reaches a very fast photodetector.

Credit

Tobias Tiecke, Facebook Inc.

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