Optical fiber array with lenses
An optical fiber array with lenses (10) connected with a plurality of optical fibers (90) is disclosed. The optical fiber array (10) comprises a base plate (11) having a first end surface (12) and a second end surface (13) opposite to the first end surface (12), a plurality of optical fibers (90) having a tip surface inserted and secured in each of the holes opened on the base plate (11), and a plurality of collimator lenses (82) installed on the second end surface facing the tip surfaces of the optical fiber (90). Each hole has a tapered inside wall having a diameter gradually decreasing from an opening on the first end surface (12) of the base plate (11) toward the second end surface and a parallel inside wall continuing from the tapered inside wall end. In the hole, a refraction index matching agent is preferably filled in between the tip surface of the optical fiber (90) and the collimator lens (82).