Press release content from Globe Newswire. The AP news staff was not involved in its creation. II-VI Incorporated to Double Manufacturing Capacity of Optical Filters for PCR Instrumentation ... II-VI IncorporatedFebruary 26, 2021 GMT PITTSBURGH, Feb. 26, 2021 (GLOBE NEWSWIRE) -- II‐VI Incorporated (Nasdaq: IIVI), a leading provider of precision optics for life sciences and optical networks, today announced that it will begin the expansion of its manufacturing footprint in Santa Rosa, California, with a plan to double over the next five years its manufacturing capacity of optical filters for polymerase chain reaction (PCR) instrumentation and 5G optical access networks. The rapid growth in PCR testing for COVID-19 and the ongoing buildout of the 5G optical access infrastructure are simultaneously driving the demand for optical filters with high performance and reliability, necessitating sustained multiyear investments in production capacity. II-VI initiated the buildout of recently secured manufacturing space in Santa Rosa, and began procuring manufacturing equipment, including coating chambers, to double manufacturing capacity over the next five years.