II-VI Inc., a developer of engineered materials and optical solutions for networks, announced that it successfully completed the acquisition of CoAdna Holdings Inc., a developer of wavelength selective switches (WSS). II-VI announced its intent to acquire CoAdna on March 26, 2018. CoAdna will be integrated into the II-VI Photonics Segment. Post-closing, the company maintains its first-quarter FY 2019 financial guidance as stated in its most recent earnings release on Aug. 7, 2018. CoAdna’s LightFlow WSS product series complements II-VI’s portfolio of products for optical amplification and monitoring that enables ROADM line cards. CoAdna’s headquarters in Sunnyvale, Calif., will now be called the II-VI Technology Center Silicon Valley.