A resin sleeve is used as an optical connection sleeve 1 for optically
connecting
an optical fiber 41 with an optical component. A ferrule fixing surface
21 provided on an inner peripheral surface of a ferrule insertion portion
2 of the sleeve 1 is formed to have a multifaceted shape in which
a cross section thereof on a plane vertical to an optical axis A thereof has a
hexagonal shape. A ferrule 40 can be positioned and fixed accurately by
a tight fit utilizing elastic deformation of resin. An outer peripheral surface
of the ferrule 40 and the ferrule fixing surface 21 come into line
contact with each other, and thus detachability of the ferrule 40 is enhanced.
Therefore, an optical fiber ferrule can be held accurately, and the optical connection
sleeve having a satisfactory detachability, an optical module using the same and
an optical communication module are realized.
