Founded in 1993 by Dr. Yusong Yin, Photonics Industries International manufactures diode-pumped solid-state lasers for precision industrial processing and scientific research, from its 67,500-square-foot facility in Ronkonkoma. Known as a pioneer of intracavity harmonic lasers, the privately held company makes its laser sources in the USA and holds 28 issued patents, with newer femtosecond systems extending a history that includes early high-power green and ultraviolet lasers.