Photonics News: Week in Brief: 09/24/21 . Qioptiq’s new production facility in G?ttingen, Germany offers 72,000 sq ft of space, including 16,000 sq ft of dedicated Class 5 cleanrooms. Courtesy of Excelitas. WALTHAM, Mass. — Industrial photonic technology manufacturer Excelitas Technologies opened a new plant for its German subsidiary Qioptiq Photonics in G?ttingen, Germany. The facility expands the company’s capacity for assembly of sophisticated optical syst...