They mainly consist of optoelectronic components (such as optical transmitters and receivers), functional circuits, and optical interfaces, aiming to achieve the functionalities of optical-to-electrical and electrical-to-optical signal conversion in optical fiber. They mainly consist of optoelectronic components (such as optical transmitters and receivers), functional circuits, and optical interfaces, aiming to achieve the functionalities of optical-to-electrical and electrical-to-optical signal conversion in optical fiber. Optical modules are the basic building blocks of 5G bearer networks, data center interconnection, and all-optical access networks whose main function is to realize the two-way conversion between light and electricity. In recent years, with the gradual increase in speed, the cost of optical modules. In optical communication, the transmission and reception of business information are realized by optical modules. They form the backbone of long-distance, high-capacity data transport in modern telecom networks. 5G has moved part of the physical layer of the. 5G wireless network operators are finding the need to increase base station signal density and flexibility. With rapidly rising consumer demand for better latency and bandwidth, 5G bearer networks provide a reliable high-speed wireless connection for users.