Viavi Solutions Inc. is a global provider of test and measurement and optical technologies. Its test and measurement, resilient position, navigation and timing (PNT) solutions enable and secure critical infrastructure ranging from data center ecosystems and communication networks to military, aerospace, railway and first responder communications. Its segments include Network and Service Enablement (NSE) and Optical Security and Performance Products (OSP). Its NSE segment provides an integrated portfolio of test, monitoring, assurance, and resilient PNT solutions that enable and secure critical infrastructure ranging from data center ecosystems and communication networks to military, aerospace, railway and first responder communications. Its OSP segment leverages its core optical coating technologies and volume manufacturing capability to design, manufacture and sell technologies for the anti-counterfeiting, 3D sensing, aerospace, industrial and automotive markets.