High-reliability optical fiber coupler

The utility model belongs to the technical field of optical fiber communication, in particular to a high-reliability optical fiber coupler, which comprises a fiber body, a first shell, a second shell, a second clamping assembly and a damping assembly, and is characterized in that the first shell is arranged on the fiber body, and the second shell is clamped on the first shell in a matched manner. By arranging the fiber body, the first shell, the second shell, the first clamping assembly, the second clamping assembly and the damping assembly, matching liquid is usually used for coupling at the fractured part of the optical fiber during coupling, the connection is not tight enough, and the fracture phenomenon occurs in the later period, the device is installed on the optical fiber at the coupled part, the connection and fixation of the coupled part can be improved, and the service life of the optical fiber is prolonged. A traditional optical fiber coupler does not have a damping effect, poor contact or joint br