Optical fiber connector and optical communication device

An optical fiber connector comprises an optical coupling lens, a ribbon-like optical fiber and a clamping piece. The optical coupling lens comprises first and second surfaces opposite to each other, and the first and second surfaces are each equipped with multiple lenses. The ribbon-like optical fiber comprises multiple optical fibers arranged at fixed intervals, each optical fiber corresponds to one lens, and each optical fiber includes an incidence plane which forms a 45-degree angle with the horizontal plane. The clamping piece comprises a connecting block and a supporting piece. The connecting block includes front and rear surfaces opposite to each other and a through hole penetrating through the front and rear surfaces. The supporting piece extends from the front surface, and includes a top surface and two guide rails extending from the top surface and facing each other. The top surface and the two guide rails form a channel which is communicated with the through hole, and the ribbon-like optical fiber i