Viavi Solutions Inc (Viavi) provides network test, monitoring, and assurance solutions. It offers 3D sensing avionics test contractors, custom optics, enterprise fiber, high-speed networks, land mobile, and military radio wireless solutions. The company serves communications service providers and enterprises. It offers light management solutions to anti-counterfeiting, consumer and industrial, government and healthcare, and other markets. VIAVI also empowers network operators, equipment manufacturers, government, aerospace, and railways with intuitive instruments, intelligence, and insights.

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The R&D arm focuses on enhancing product performance and manufacturing capabilities. In the NSE segment, the company develops portable test instruments, systems, and software for Network Operations Centers, and instruments for communications network components. The R&D units of the company include the NSE segment, which is responsible for developing portable test instruments, systems, and software for Network Operations Centers, and the OSP segment, which focuses on anti-counterfeiting, consumer electronics, industrial, government, and automotive markets. In the OSP segment, R&D efforts focus on anti-counterfeiting, consumer electronics, industrial, government, and automotive markets, with advances in novel pigments and optical coating technology for various applications. As of June 2025, the company owned 1,085 U.S. patents, 2,075 foreign patents and has 1,164 patent applications pending for approval. In FY2025, the company incurred expenses of US$208.7 million on R&D, which as a percentage of revenue, stood at 19.3%.