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OSA | Living History

Lasers deliver a tightly focused light beam enabling multiple applications.



Lasers, developed during the mid-20th century, deliver coherent light in a tightly focused beam.

Depending on application, lasers can be as small as a strand of DNA or as large as a sports stadium. They can generate power from a few picowatts to more than 500 trillion watts. Their applications range from high-speed communications and digital technologies to medical advances and precision manufacturing. (Photo: TOPTICA Photonics AG)

(Courtesy of TOPTICA Photonics AG)