Introduction: The OPLINK brand was established in 1995 and is a supplier of optical passive and active communication devices, modules, and subsystems. In 2014, Koch Industries completed the acquisition of OPLINK. OPLINK's main services include designing, producing, and selling high-performance optical transceiver modules, optical network devices, integrated optical modules, and fiber optic network equipment; Digital multiplexer; Router; Collimator; Signal separator; positioner; Fiber optic cycler; Fiber optic wavelength division multiplexer/isolation combiner; Fiber optic coupling/isolation combiner; Fiber optic filter/isolation combiner; And subsystems, applied in optical communication fields such as long-distance transmission networks, metropolitan area networks, local area networks, wireless backhaul networks, fiber to the home, data centers, as well as remote information exchange systems and devices in the Internet of Things field; Oplink official website: www.opplink.com.