Optical module is a device used for optical communication, mainly used to convert electrical signals into optical signals and transmit them between optical fibers. The optical module transmits and receives optical signals through an optical transmitter and an optical receiver. It has the ability of high-speed and long-distance transmission, and is widely used in data centers, telecommunications networks, wireless communication and other fields. The performance of optical modules depends on factors such as photoelectric conversion efficiency, transmission distance, transmission rate, optical interface type, and packaging form. By selecting appropriate optical modules, it is possible to meet the needs of different application scenarios and achieve efficient optical communication.