美國PI (Photonics Industries) 公司，坐落于紐約長島朗康科馬，是腔內倍頻固體激光器的先驅。自1993年推出第一臺高功率綠光激光器以來，美國PI公司創造了世界腔內倍頻固體激光器的工業發展史。因為腔內倍頻技術的先天優勢，由PI開創的設計平臺統領了今天的全球紫外激光器市場。其他競爭對手在過去20多年里一直以各種方式抄襲我們的設計。不過憑著不斷的創新和提高，PI今天仍然是此項技術無可爭議的領導者。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.