Founded in 1979, Viavi Solutions, formerly part of JDS Uniphase, is a California-based technology firm. Its predecessor spun off its fiber-optic solutions as Lumentum Holdings in August 2015 and renamed itself Viavi Solutions. The company earns the majority of revenue from network-testing and measurement equipment. The firm’s major clients are communication service providers. About 25% of revenue comes from optical technology that is mainly used for currency anticounterfeiting and other end-market applications.