There are lasers, and then there are compact, multibeam, multi-wavelength lasers

An example of a compact, multibeam, and multi-wavelength laser. Unlike typical semiconductor lasers that emit single beams of light pointing in a single, well-defined direction, the multibeam laser can use versatile light sources. The innovation has potential use in applications related to remote chemical sensing, pollution monitoring, optical wireless, and interferometry. Developed by a team of applied scientists from the Harvard School of Engineering and Applied Sciences, Hamamatsu Photonics, and ETH Zürich.

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