Optical chips come in two primary categories: laser chips and detector chips. These two types work hand in hand to enable data transmission through optical signals. Laser chips, or light-emitting chips, are the heart of optical communication systems. Multimode optical transceivers and single-mode optical modules are essential short-distance, high-speed optical interconnect devices in modern data centers, enterprise networks, and high-speed local area networks. They are responsible for generating laser light. The optics module is comprised of Si photodiodes, optical components, and current-to-voltage conversion circuit. Example customer requirement: 500-meter transmission distance, 100G transmission rate, QSFP28 interface, considering overall system cost.