美国PI (Photonics Industries) 公司，坐落于纽约长岛朗康科马，是腔内倍频固体激光器的先驱。自1993年推出第一台高功率绿光激光器以来，美国PI公司创造了世界腔内倍频固体激光器的工业发展史。因为腔内倍频技术的先天优势，由PI开创的设计平台统领了今天的全球紫外激光器市场。其他竞争对手在过去20多年里一直以各种方式抄袭我们的设计。不过凭着不断的创新和提高，PI今天仍然是此项技术无可争议的领导者。Photonics Industries International Inc., located in Ronkonkoma, Long Island, New York, is the pioneer of intracavity solid-state harmonic lasers. Since its first high power green harmonic laser was introduced back in 1993, Photonics Industries has been creating the development history of harmonic solid-state lasers, with the focus on their industrial applications. Due to the inherent advantages of intracavity conversion, the platform PI pioneered is dominating today’s UV solid state laser market world-wide. Other competitors have been trying to copy our design by all means. Nonetheless, PI is still the unequivocal leader in this technology through continued improvement and innovation.