JDS Uniphase Corporation provides communications test and measurement solutions, and optical products. The company operates in four segments: Optical Communications, Communications Test and Measurement, Advanced Optical Technologies, and Commercial Lasers. The Optical Communications segment provides components, modules, and subsystems used by communications equipment providers for telecommunications and enterprise data communications. Its products include transmitters, receivers, amplifiers, ROADMS, optical transceivers, multiplexers and demultiplexers, switches, optical performance monitors and couplers, splitters, and circulators. The Communications Test and Measurement segment provides a portfolio of instruments, systems, and services to enable the design, deployment, and maintenance of communication equipment and networks. It offers test tools and platforms for optical transport networks, digital subscriber line services, data networks, cable networks, digital video broadcast, and fiber characterization services. The Advanced Optical Technologies segment provides optical solutions for security and decorative applications, and thin-film coatings for a range of public and private sector markets. Its product applications include computer-driven projectors, intelligent lighting systems, photocopiers, facsimile machines, scanners, security products, and decorative surface treatments. The Commercial Lasers segment provides industrial diode lasers, fiber lasers, gas lasers, solid-state lasers, and photonic power delivery systems. The company markets its products primarily to service and cable providers, network equipment manufacturers, original equipment manufacturers, distributors, and strategic partners in North America, Europe, and the Asia-Pacific. It has a strategic alliance with SICPA for its light interference pigments, which are used to provide security features in currency. The company was founded in 1979 and is headquartered in Milpitas, California.