Because of the advantages of large capacity, long relay distance, good security, strong anti-electromagnetic interference ability, fiber optical communication has been more and more widely used in the whole process of contemporary information content transmission, and has become an effective way of contemporary information content transmission.

At present, fiber optical slip ring has been used in all walks of life, such as CT scanner management system in diagnosis and treatment equipped with machine equipment, angiography instrument, mechanical arm and winch in industrial production, scanner system in gasoline mining, deep-sea detection assembly line and its requirements in military defense industry are also gradually extensive. In the communication mobile data between the rotating wireless antenna and the radar detection base, the optical signal rotating connection between the wireless antenna front-end development and the monitoring center should be maintained according to the optical fiber line rotating connector. Helicopters, drones, and warplanes are often equipped with optical sighting systems on the front or underside of their shells for research or precise positioning. The photoelectric pod is equipped with various photoelectric sensors. In order to accurately capture the overall target, the pod must rotate continuously 36o degrees. Therefore, the optical signal inspected must be transmitted to the equipment according to the optical fiber line rotating connector to carry out data statistical analysis and solution. In addition, be sure to apply airport laser cutting, ship laser cutting and intelligent weapon equipment of the fire point automatic control system. The Navy, South China Sea Fleet and the Air Force also need a large number of optical fiber line rotating connectors to maintain high speed control information content and video audio information content transmission.