Multi-core optical fiber array beam expanding contact element and optical fiber connector

The utility model relates to a multi-core optical fiber array beam-expanding contact and an optical fiber connector, the multi-core optical fiber array beam-expanding contact comprises an outer sleeve, a lens and an inner sleeve are arranged in the outer sleeve at intervals along the axial direction, an optical fiber array is fixedly assembled in the inner sleeve, the optical fiber array is formed by bonding at least two optical fibers, and the optical fiber connector is arranged in the inner sleeve. The peripheral surfaces of the adjacent optical fibers are tangent; and the optical fibers at the outer edge of the optical fiber array are tangent to the inner circumferential surface of the inner sleeve. According to the utility model, through arrangement of the optical fiber array in the inner sleeve, the optical fiber position in the contact element is fixed and unique, and the high temperature resistance and the vibration resistance are good. 本实用新型关于多芯光纤阵列扩束接触件及光纤连接器，该多芯光纤阵列扩束接触件包括外套管，该外套管内沿轴向间隔设置有一个透镜和内套管，所