MIT Offshoot's New Direct-Diode Laser Can Cut, Weld, Blow Stuff Up | Popular Science: ... a two-year-old company spun out of MIT’s Lincoln Lab says it has broken through several of the usual limitations and is commercializing a direct-diode laser system that is brighter, more powerful, and significantly more compact than its peers.
TeraDiode’s system is based on semiconductor laser technology (fueled by electricity rather than chemicals, which is already a plus from a safe-handling standpoint) augmented by an optical system that wrangles several beams of light into a single powerful beam. Powerful enough, the company says, for industrial cutting and welding.
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