FOCI Fiber Optic Communications, Inc. engages in the design, manufacture, design, consulting, service, and marketing of fiber optic components and integrated modules for communication networks primarily in Taiwan. It offers interconnects, such as connector/adaptor parts, pigtails/patchcords, and patchpanels; optical fiber application systems; optical fiber test instruments; couplers/splitters, attenuators, and wavelength division multiplexing (WDM) products; filter WDMs, CWDMs, DWDMs, and filter devices; optical isolators; and optical subassembly products. The company was founded in 1995 and is based in Hsinchu, Taiwan.